An on-chip integrated cableless light-controlled phased array front-end system

Abstract

The application discloses a kind of cableless optical control phased array front-end systems integrated on chip, including satellite cabin outside optical control array antenna front-end chip and satellite cabin inside beam control chip.In launch mode, satellite cabin inside beam control chip processes microwave signal, and first N-way spatial radio frequency light signal is emitted, and first N-way spatial radio frequency light signal is transmitted to the satellite cabin outside optical control array antenna front-end chip by spatial light, and satellite cabin outside optical control array antenna front-end chip processes first N-way spatial radio frequency light signal and emits;In receiving mode, satellite cabin outside optical control array antenna front-end chip processes microwave signal and emits second N-way spatial radio frequency light signal, and second N-way spatial radio frequency light signal is transmitted to the satellite cabin inside beam control chip by spatial light, and satellite cabin inside beam control chip processes second N-way spatial radio frequency light signal and outputs radio frequency combined wave signal.The application can improve the performance of system, reduce size and reduce cost.

Description

Technical Field

[0001] This invention relates to the application fields of microwave photonics and space laser communication, and in particular to a monolithically integrated cableless optical phased array front-end system. Background Technology

[0002] Microwave photonics technology employs photonic methods and techniques to generate, transmit, and process microwave signals. It boasts advantages such as no bandwidth limitations, transparency to any modulation / coding format, electromagnetic compatibility, and low transmission loss. Currently, microwave photonics signal transmission technology has been extensively studied and is entering the engineering application stage in broadband optically controlled phased array antennas and array antenna remote extension systems. Compared to traditional microwave and digital array technologies, broadband optically controlled arrays not only retain the advantages of array systems but also combine the high bandwidth characteristics of optical processing technology, thus solving the bandwidth bottleneck of current array systems.

[0003] However, most existing satellite payload optical control array systems are built based on discrete components, which suffer from problems such as large weight, large size, high cost, poor reliability, and susceptibility to environmental influences. The antenna front-end and signal processing and control center usually use a large amount of fiber optic cable power splitting and transmission technology, resulting in a large scale. The antenna front-end of the optical control array system is often located outside the cabin, and the fiber optic cables are directly exposed to the high vacuum, high dose radiation, and extreme temperature changes outside the cabin. This causes changes in fiber length and refractive index, which in turn causes changes in the phase of the transmitted signal and affects the quality of the transmitted signal. Rapid temperature changes outside the cabin accelerate the deformation of the optical cable, and the increased microbending loss causes changes in the amplitude of the transmitted signal, making it difficult to guarantee a long lifespan. All of these factors seriously restrict its practical application on satellite platforms. Summary of the Invention

[0004] The purpose of this invention is to provide an on-chip integrated, cable-free optical phased array front-end system, achieving high performance, small size, and low cost for mass production.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0006] An on-chip integrated cableless optical phased array front-end system includes an external optical array antenna front-end chip and an internal beam control chip.

[0007] In transmission mode, the beam control chip inside the satellite cabin processes the microwave signal and emits the first N spatial radio frequency optical signals. The first N spatial radio frequency optical signals are transmitted via spatial light to the front-end chip of the external optical control array antenna of the satellite cabin. The front-end chip of the external optical control array antenna of the satellite cabin processes the first N spatial radio frequency optical signals and emits them.

[0008] In receiving mode, the front-end chip of the external optical control array antenna of the satellite cabin processes the microwave signal and outputs the second N-channel space radio frequency optical signal. The second N-channel space radio frequency optical signal is transmitted to the beam control chip inside the satellite cabin via space light. The beam control chip inside the satellite cabin processes the second N-channel space radio frequency optical signal and outputs a radio frequency multiplexing signal.

[0009] Optionally, the satellite external optical control array antenna front-end chip includes: a tunable laser group, a broadband electro-optic modulator group, a first on-chip integrated SOA array, a first integrated OPA transceiver unit, and a photodetector group. The satellite internal beam control chip includes: a tunable laser, a broadband electro-optic modulator, a 1-to-n optical power divider, a wavelength division multiplexer, a second on-chip integrated SOA array, an integrated OTTD array, a second integrated OPA transceiver unit, and a photodetector.

[0010] In transmission mode, the microwave signal transmitter outputs a broadband microwave signal, and the tunable laser outputs an optical carrier with wavelength λ0. The broadband microwave signal is electro-optically converted by the broadband electro-optic modulator and modulated onto the optical carrier with wavelength λ0. The 1-to-n optical power divider is used to split the modulated optical carrier with wavelength λ0, outputting n carrier λ0 radio frequency optical signals. The second on-chip integrated SOA array is used to amplify the n carrier λ0 radio frequency optical signals, and generates N relative time delay differences between channels through the integrated OTTD array and outputs the first N spatial radio frequency optical signals through the second integrated OPA transceiver unit. N-channel space radio frequency optical signals are transmitted via space light to the front-end chip of the satellite's external optical control array antenna. The first integrated OPA transceiver unit processes the first N-channel space radio frequency optical signals and outputs the first N-channel waveguide medium radio frequency optical signals. The first on-chip integrated SOA array amplifies the first N-channel waveguide medium radio frequency optical signals. The photodetector group performs photoelectric conversion on the first N-channel waveguide medium radio frequency optical signals from the first on-chip integrated SOA array and outputs N-channel broadband microwave signals. The N-channel broadband microwave signals are radiated from the N antennas via T / R components, achieving power combining in space.

[0011] In receive mode, the space microwave signal is received by N antennas and input from the T / R component to the broadband electro-optic modulator group. The tunable laser group outputs N channels with wavelengths from λ1 to λ2. n The optical carrier wave, the space microwave signal, is electro-optically converted by the broadband electro-optic modulator group and modulated onto the N channels with wavelengths λ1 to λ2. nOn the optical carrier, N optical radio frequency signals are output; the first on-chip integrated SOA array amplifies the N optical radio frequency signals, processes them through the first integrated OPA transceiver unit, and outputs the second N spatial radio frequency optical signals; the second N spatial radio frequency optical signals are transmitted to the beam control chip inside the satellite cabin via spatial light; the second integrated OPA transceiver unit processes the second N spatial radio frequency optical signals and outputs the second N waveguide medium radio frequency optical signals; the second N waveguide medium radio frequency optical signals generate N relative time delay differences between channels through the integrated OTTD array; the second on-chip integrated SOA array amplifies the second N waveguide medium radio frequency optical signals from the receiving OTTD array 17, and outputs N carriers λ1 to λ2. n The optical radio frequency signal; the wavelength division multiplexer converts the N carriers λ1 to λ2 n The optical radio frequency signal is multiplexed to output a single optical domain combined radio frequency optical signal, which is then converted by a photodetector to output a combined radio frequency signal, which is then fed into a microwave signal receiver for subsequent signal processing.

[0012] Optionally, the first on-chip integrated SOA array includes a first uplink RF optical signal SOA array and a first downlink RF optical signal SOA array. In transmit mode, the first uplink RF optical signal SOA array is used to amplify the first N waveguide medium RF optical signals from the first on-chip integrated OPA transceiver unit. In receive mode, the first downlink RF optical signal SOA array is used to amplify the N optical carrier RF optical signals.

[0013] Optionally, the first integrated OPA transceiver unit includes: a first receiving OPA optical antenna array, a first receiving OPA phase shifter array, and a first receiving OPA power divider network interconnected; and a second transmitting OPA power divider network, a second transmitting OPA phase shifter array, and a second transmitting OPA optical antenna array interconnected. In transmit mode, the first N spatial radio frequency optical signals are processed sequentially by the first receiving OPA optical antenna array, the first receiving OPA phase shifter array, and the first receiving OPA power divider network to output the first N waveguide medium radio frequency signals. In receive mode, the N optical radio frequency signals from the first on-chip integrated SOA array are processed sequentially by the second transmitting OPA power divider network, the second transmitting OPA phase shifter array, and the second transmitting OPA optical antenna array to output the second N spatial radio frequency optical signals.

[0014] Optionally, both the first receiving OPA optical antenna array and the second transmitting OPA optical antenna array include: a first L×M grating-type optical antennas; both the first receiving OPA phase shifter array and the second transmitting OPA phase shifter array include: a first L×M thermo-optical phase shifters; both the first receiving OPA power divider network and the second transmitting OPA power divider network include: a first L×M optical channels. In the transmitting mode, the first L×M grating-type optical antennas of the first receiving OPA optical antenna array are used to receive the first N spatial radio frequency optical signals transmitted via spatial light and output L×M optical channel optical signals; the first L×M thermo-optical phase shifters of the first receiving OPA phase shifter array are used to perform phase tuning processing on the first L×M optical channel optical signals to complete the optical beam deflection; the first L×M optical channel optical signals of the first receiving OPA power divider network are used to power divide the phase-tuned first L×M optical channel optical signals to output the first N waveguide medium radio frequency optical signals. In receive mode, the first L×M optical channels of the second transmit OPA power divider network are used to power divide and output L×M optical channel optical signals from the N optical radio frequency signals from the first on-chip integrated SOA array; the first L×M thermo-optical phase shifters of the second transmit OPA phase shifter array are used to perform phase tuning processing on the first L×M optical channel optical signals to complete the optical beam deflection; the first L×M grating-type optical antenna of the second transmit OPA optical antenna array is used to receive the phase-tuned L×M optical channel optical signals and output the second N spatial radio frequency optical signals.

[0015] Optionally, the second integrated OPA transceiver unit includes: a first transmitting OPA power divider network, a first transmitting OPA phase shifter array, a first transmitting OPA optical antenna array, a second receiving OPA optical antenna array, a second receiving OPA phase shifter array, and a second receiving OPA power divider network. In transmit mode, the n spatial radio frequency optical signals from the OTTD array are processed sequentially by the first transmitting OPA power divider network, the first transmitting OPA phase shifter array, and the first transmitting OPA optical antenna array to output the first N spatial radio frequency optical signals. In receive mode, the second N spatial radio frequency optical signals are processed sequentially by the second receiving OPA optical antenna array, the second receiving OPA phase shifter array, and the second receiving OPA power divider network to output the second N waveguide medium radio frequency optical signals.

[0016] Optionally, both the first transmitting OPA power divider network and the second receiving OPA power divider network include: a second L×M optical channels; both the first transmitting OPA phase shifter array and the second receiving OPA phase shifter array include: a second L×M thermo-optical phase shifters; both the first transmitting OPA optical antenna array and the second receiving OPA optical antenna array include: a second L×M grating-type optical antennas. In transmit mode, the second L×M optical channels of the first transmitting OPA power divider network are used to power divide the n radio frequency optical signals from the OTTD array to output L×M optical channels; the second L×M thermo-optical phase shifters of the first transmitting OPA phase shifter array are used to perform phase tuning processing on the optical signals of the second L×M optical channels to complete the optical beam deflection; the second L×M grating-type optical antennas of the first transmitting OPA optical antenna array are used to power divide the phase-tuned second L×M optical channel signals to output the first N spatial radio frequency optical signals. In receiving mode, the second L×M grating-type optical antennas of the second receiving OPA optical antenna array 104 are used to receive the second N spatial radio frequency optical signals transmitted via spatial light and output the second L×M optical channel optical signals; the second L×M thermo-optical phase shifters of the second receiving OPA phase shifter array are used to perform phase tuning processing on the L×M optical channel optical signals to complete the optical beam deflection; the second L×M optical channels of the second receiving OPA power divider network are processed by phase tuning and output as the second N waveguide medium radio frequency optical signals.

[0017] Optionally, the integrated OTTD array includes a transmitting OTTD array and a receiving OTTD array. In transmitting mode, the n radio frequency optical signals from the second on-chip integrated SOA array generate N relative time delay differences between channels via the transmitting OTTD array. In receiving mode, the second N waveguide dielectric radio frequency optical signals generate N relative time delay differences between channels via the receiving OTTD array.

[0018] Optionally, both the transmitting OTTD array and the receiving OTTD array include: a continuously adjustable optical delay line structure, an optical switch, and an incrementally adjustable delay line structure.

[0019] In transmit mode, the continuously adjustable optical delay line structure of the transmit OTTD array is used to continuously adjust the delay of the n radio frequency optical signals; the optical switch of the transmit OTTD array is used to switch the optical paths of the n radio frequency optical signals passing through the continuously adjustable optical delay line structure of the transmit OTTD array; the incremental adjustment delay line structure of the transmit OTTD array is used to transmit the n radio frequency optical signals passing through the continuously adjustable optical delay line structure of the transmit OTTD array through incremental adjustment delay lines of different lengths, thereby generating quantitative delay adjustment.

[0020] In receiving mode, the continuously adjustable optical delay line structure of the receiving OTTD array is used to continuously adjust the delay of the second N waveguide medium radio frequency optical signals; the optical switch of the receiving OTTD array is used to switch the optical path of the second N waveguide medium radio frequency optical signals passing through the continuously adjustable optical delay line structure of the receiving OTTD array; the incremental adjustment delay line structure of the receiving OTTD array is used to transmit the second N waveguide medium radio frequency optical signals passing through the continuously adjustable optical delay line structure of the receiving OTTD array through incremental adjustment delay lines of different lengths, thereby generating quantitative delay adjustment.

[0021] Optionally, the second on-chip integrated SOA array includes: a second uplink RF optical signal SOA array and a second downlink RF optical signal SOA array. In transmit mode, the second uplink RF optical signal SOA array is used to amplify n RF optical signals. In receive mode, the second downlink RF optical signal SOA array is used to amplify a second N waveguide medium RF optical signal from the receive OTTD array.

[0022] This invention has at least one of the following technical effects:

[0023] 1. This invention proposes an on-chip integrated, cableless optically controlled phased array front-end system. Utilizing advanced integrated optoelectronics and three-dimensional heterogeneous integration technology, combined with all-solid-state free-space optical transmission methods, it highly integrates passive devices such as integrated optical phased arrays (OPA), optical waveguides with optical true time delays (OTTD), optical power dividers, and wavelength division multiplexers, as well as active devices such as lasers, modulators, detectors, and on-chip integrated semiconductor optical amplifiers (SOA), on the same substrate. This achieves a small size, lightweight design, low power consumption, and improved adaptability to space environments for the optically controlled phased array system. Its advantages are particularly prominent in satellite payload systems.

[0024] 2. The present invention proposes an on-chip integrated cableless optical phased array front-end system that utilizes integrated optical phased array multi-beam communication technology to construct an optical channel between the satellite cabin and the external space. Using laser as the information carrier, wireless optical communication is achieved through laser transmission in free space, enabling the external antenna front-end to control the internal beam. This solves the problems of size and weight limitations and time delay jitter caused by optical cable networks.

[0025] 3. The optical true delay technology based on integrated optical waveguide delay lines is introduced into the optically controlled phased array antenna. The integrated optical delay line adopts advanced photolithography technology, and its delay resolution can reach the sub-picosecond level, which can improve the identification and resolution of the phased array radar payload. Attached Figure Description

[0026] Figure 1 A schematic diagram of the overall structure of an on-chip integrated cableless optical phased array front-end system provided in an embodiment of the present invention;

[0027] Figure 1a for Figure 1 Detailed diagram of the front-end chip of the external optical control array antenna of the satellite;

[0028] Figure 1b for Figure 1 Detailed diagram of the front-end chip of the optical control array antenna inside the satellite cabin;

[0029] Figure 2 This is a schematic diagram of an integrated OPA transceiver unit structure provided in an embodiment of the present invention;

[0030] Figure 3 This is a schematic diagram of an integrated OTTD array structure provided in an embodiment of the present invention. Detailed Implementation

[0031] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become clearer from the following description. It should be noted that the drawings are in a very simplified form and use non-precise proportions, used only to facilitate and clearly illustrate the embodiments of the present invention. Please refer to the drawings to make the objectives, features, and advantages of the present invention more apparent and understandable. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the implementation conditions of the present invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to the size, without affecting the effects and objectives achieved by the present invention, should still fall within the scope of the technical content disclosed in the present invention.

[0032] Figure 1This is a schematic diagram illustrating an embodiment of an on-chip integrated cableless optically controlled phased array front-end system according to one embodiment of the present invention. Figure 1 As shown, this embodiment provides an on-chip integrated cableless optical phased array front-end system, which includes an external optical control array antenna front-end chip 1 and an internal beam control chip 2.

[0033] In the transmission mode, the beam control chip 2 inside the satellite cabin processes the microwave signal and outputs the first N spatial radio frequency optical signals. The first N spatial radio frequency optical signals are transmitted to the front-end chip 1 of the external optical control array antenna of the satellite cabin via spatial light. The front-end chip 1 of the external optical control array antenna of the satellite cabin processes the first N spatial radio frequency optical signals and outputs them.

[0034] In receiving mode, the front-end chip 1 of the external optical control array antenna of the satellite cabin processes the microwave signal and outputs the second N-channel space radio frequency optical signal. The second N-channel space radio frequency optical signal is transmitted to the beam control chip 2 inside the satellite cabin via space light. The beam control chip 2 inside the satellite cabin processes the second N-channel space radio frequency optical signal and outputs radio frequency multiplexing signal.

[0035] This embodiment proposes an on-chip integrated, cableless optically controlled phased array front-end system. Utilizing advanced integrated optoelectronics and three-dimensional heterogeneous integration technology, combined with all-solid-state free-space optical transmission methods, it highly integrates passive devices such as integrated optical phased arrays (OPA), optical true time delay lines (OTTD), optical power dividers, and wavelength division multiplexers, as well as active devices such as lasers, modulators, detectors, and on-chip integrated semiconductor optical amplifiers (SOA), onto the same substrate. This achieves a small size, lightweight design, low power consumption, and improved adaptability to space environments, with its advantages being particularly prominent in satellite payload systems.

[0036] like Figure 1a As shown, the front-end chip 1 of the satellite external optical control array antenna includes: a tunable laser group (the tunable laser group includes: n tunable lasers 31 to 32). n ), broadband electro-optic modulator group (the broadband electro-optic modulator group includes: n broadband electro-optic modulators 41 to 4 n The first chip integrates an SOA array 16, a first integrated OPA transceiver unit 15, and a photodetector group (the photodetector group includes n photodetectors 111 to 112). n Ultimately, this enables bidirectional, cableless transmission and reception of array broadband radio frequency signals.

[0037] like Figure 1b As shown, the satellite cabin beam control chip 2 includes: a tunable laser 30, a broadband electro-optic modulator 40, a 1-to-n optical power divider 5, a wavelength division multiplexer 12, a second on-chip integrated SOA array 13, an integrated OTTD array 17, a second integrated OPA transceiver unit 14, and a photodetector 110, ultimately realizing delay control of multi-channel broadband radio frequency signals and bidirectional cableless transmission and reception.

[0038] Please refer to Figure 1a and Figure 1b In the transmission mode, the microwave signal transmitter outputs a broadband microwave signal, and the tunable laser 30 outputs an optical carrier with wavelength λ0. The broadband microwave signal is electro-optically converted by the broadband electro-optic modulator 40 and modulated onto the optical carrier with wavelength λ0. The 1-to-n optical power divider 5 is used to split the modulated optical carrier with wavelength λ0 and output n-channel carrier λ0 radio frequency optical signals. The second on-chip integrated SOA array 13 is used to amplify the n-channel carrier λ0 radio frequency optical signals, and generates N-channel relative time delay differences through the integrated OTTD array 17 and outputs the first N-channel spatial radio frequency optical signals through the second integrated OPA transceiver unit 14. The first N-channel space radio frequency optical signals are transmitted via space light to the front-end chip 1 of the satellite's external optical control array antenna. The first integrated OPA transceiver unit 15 processes the first N-channel space radio frequency optical signals and outputs the first N-channel waveguide medium radio frequency optical signals. The first on-chip integrated SOA array 16 amplifies the first N-channel waveguide medium radio frequency optical signals. The photodetector group performs photoelectric conversion on the first N-channel waveguide medium radio frequency optical signals from the first on-chip integrated SOA array 16 and outputs N-channel broadband microwave signals. The N-channel broadband microwave signals are radiated from the N antennas via T / R components, achieving power combining in space.

[0039] In receive mode, the space microwave signal is received by N antennas and input from the T / R component to the broadband electro-optic modulator group. The tunable laser group outputs N channels with wavelengths from λ1 to λ2. n The optical carrier wave, the space microwave signal, is electro-optically converted by the broadband electro-optic modulator group and modulated onto the N channels with wavelengths λ1 to λ2. nOn the optical carrier, N optical radio frequency signals are output; the first on-chip integrated SOA array 16 amplifies the N optical radio frequency signals, processes them through the first integrated OPA transceiver unit 15, and outputs the second N spatial radio frequency optical signals; the second N spatial radio frequency optical signals are transmitted to the beam control chip 2 inside the satellite cabin via spatial light; the second integrated OPA transceiver unit 14 processes the second N spatial radio frequency optical signals and outputs the second N waveguide medium radio frequency optical signals; the second N waveguide medium radio frequency optical signals generate N relative time delay differences between channels through the integrated OTTD array 17; the second on-chip integrated SOA array 13 amplifies the second N waveguide medium radio frequency optical signals from the receiving OTTD array 17 and outputs N carriers λ1 to λ2. n The optical radio frequency signal; the wavelength division multiplexer 12 divides the N carriers λ1 to λ2 n The optical radio frequency signal is multiplexed to output a single optical domain combined radio frequency optical signal, which is then converted by photodetector 110 to output the combined radio frequency signal, which is then sent to microwave signal receiver for subsequent signal processing.

[0040] Please continue to refer to this. Figure 1a and Figure 1b The first on-chip integrated SOA array 16 includes a first uplink RF optical signal SOA array (6 31 ~6 3n ) and the first downlink RF optical signal SOA array (6 11 ~6 1n In transmit mode, the first uplink RF optical signal SOA array (6) 31 ~6 3n ) is used to amplify the first N-channel waveguide medium radio frequency optical signals from the first integrated OPA transceiver unit 15. In receive mode, the first downlink radio frequency optical signal SOA(6 11 ~6 1n It is used to amplify the N-channel optical carrier radio frequency optical signals.

[0041] The first integrated OPA transceiver unit 15 includes: a first receiving OPA optical antenna array 102, a first receiving OPA phase shifter array 92, and a first receiving OPA power divider network 82 interconnected with each other; and a second transmitting OPA power divider network 83, a second transmitting OPA phase shifter array 93, and a second transmitting OPA optical antenna array 103 interconnected with each other. In transmit mode, the first N spatial radio frequency optical signals are processed sequentially by the first receiving OPA optical antenna array 102, the first receiving OPA phase shifter array 92, and the first receiving OPA power divider network 82 to output the first N waveguide medium radio frequency signals. In receive mode, the N optical radio frequency signals from the first on-chip integrated SOA array 16 are processed sequentially by the second transmitting OPA power divider network 83, the second transmitting OPA phase shifter array 93, and the second transmitting OPA optical antenna array 103 to output the second N spatial radio frequency optical signals.

[0042] Both the first receiving OPA optical antenna array 102 and the second transmitting OPA optical antenna array 103 include: a first L×M grating-type optical antennas; both the first receiving OPA phase shifter array 92 and the second transmitting OPA phase shifter array 93 include: a first L×M thermo-optical phase shifters; both the first receiving OPA power divider network 82 and the second transmitting OPA power divider network 83 include: a first L×M optical channels. In transmit mode, the first L×M grating-type optical antenna of the first receiving OPA optical antenna array 102 is used to receive the first N spatial radio frequency optical signals transmitted through spatial light and output L×M optical channel optical signals; the first L×M thermo-optical phase shifters of the first receiving OPA phase shifter array 92 are used to perform phase tuning processing on the first L×M optical channel optical signals to complete the optical beam deflection; the first L×M optical channel optical signals of the first receiving OPA power divider network 82 are used to power divide the phase-tuned first L×M optical channel optical signals to output the first N waveguide medium radio frequency optical signals. In receive mode, the first L×M optical channels of the second transmit OPA power divider network 83 are used to power divide and output L×M optical channel optical signals from the N optical radio frequency signals from the first on-chip integrated SOA array 16; the first L×M thermo-optical phase shifters of the second transmit OPA phase shifter array 93 are used to perform phase tuning processing on the first L×M optical channel optical signals to complete the optical beam deflection; the first L×M grating-type optical antenna 18 of the second transmit OPA optical antenna array 103 is used to receive the phase-tuned L×M optical channel optical signals and output the second N spatial radio frequency optical signals.

[0043] The second integrated OPA transceiver unit 14 includes: a first transmitting OPA power divider network 81, a first transmitting OPA phase shifter array 91, a first transmitting OPA optical antenna array 101, a second receiving OPA optical antenna array 104, a second receiving OPA phase shifter array 94, and a second receiving OPA power divider network 84. In transmit mode, the n spatial radio frequency optical signals from the OTTD array 17 are processed sequentially by the first transmitting OPA power divider network 81, the first transmitting OPA phase shifter array 91, and the first transmitting OPA optical antenna array 101 to output the first N spatial radio frequency optical signals. In receive mode, the second N spatial radio frequency optical signals are processed sequentially by the second receiving OPA optical antenna array 104, the second receiving OPA phase shifter array 94, and the second receiving OPA power divider network 84 to output the second N waveguide medium radio frequency optical signals.

[0044] Both the first transmitting OPA power divider network 81 and the second receiving OPA power divider network 84 include a second L×M optical channel; both the first transmitting OPA phase shifter array 91 and the second receiving OPA phase shifter array 94 include a second L×M thermo-optical phase shifters; both the first transmitting OPA optical antenna array 101 and the second receiving OPA optical antenna array 104 include a second L×M grating-type optical antennas. In transmit mode, the second L×M optical channel of the first transmitting OPA power divider network 81 is used to power divide the n radio frequency optical signals from the OTTD array 17 to output L×M optical channels; the second L×M thermo-optical phase shifters of the first transmitting OPA phase shifter array 91 are used to perform phase tuning processing on the optical signals of the second L×M optical channels to complete the optical beam deflection; the second L×M grating-type optical antennas of the first transmitting OPA optical antenna array 101 are used to power divide the phase-tuned second L×M optical channel signals to output the first N spatial radio frequency optical signals. In receiving mode, the second L×M grating-type optical antennas of the second receiving OPA optical antenna array 104 are used to receive the second N spatial radio frequency optical signals transmitted via spatial light and output the second L×M optical channel optical signals; the second L×M thermo-optical phase shifters of the second receiving OPA phase shifter array 94 are used to perform phase tuning processing on the L×M optical channel optical signals to complete the optical beam deflection; the second L×M optical channels of the second receiving OPA power divider network 84 are processed by phase tuning and output the second N waveguide medium radio frequency optical signals.

[0045] The integrated OTTD array 17 includes a transmitting OTTD array 71 and a receiving OTTD array 72. In transmitting mode, the n radio frequency optical signals from the second on-chip integrated SOA array 13 generate N relative time delay differences between channels via the transmitting OTTD array 71. In receiving mode, the second N waveguide medium radio frequency optical signals generate N relative time delay differences between channels via the receiving OTTD array 72.

[0046] The transmitting OTTD array 71 is used to control the delay of the n-channel radio frequency optical signals; the receiving OTTD array 72 is used to control the delay of the second N-channel waveguide medium radio frequency optical signals. Both the transmitting OTTD array 71 and the receiving OTTD array 72 include: a continuously adjustable optical delay line structure, an optical switch, and an incrementally adjustable delay line structure.

[0047] In transmit mode, the continuously adjustable optical delay line structure of the transmit OTTD array 71 is used to perform high-precision continuous adjustment of the delay of the n radio frequency optical signals. The continuously adjustable optical delay structure includes multiple cascaded micro-ring structures, and the delay of the radio frequency optical signals is continuously adjusted with high precision by tuning the coupling coefficient of the micro-rings and the additional phase shift. The optical switch of the transmit OTTD array 71 is used to switch the optical paths of the n radio frequency optical signals passing through the continuously adjustable optical delay line structure of the transmit OTTD array 71. The incremental adjustment delay line structure of the transmit OTTD array 71 includes optical waveguides of different lengths. By controlling the optical switch of the transmit OTTD array 71, the n radio frequency optical signals passing through the continuously adjustable optical delay line structure of the transmit OTTD array 71 are transmitted through incremental adjustment delay lines of different lengths, thereby generating quantitative delay adjustment.

[0048] In receiving mode, the continuously adjustable optical delay line structure of the receiving OTTD array 72 is used to perform high-precision continuous adjustment of the delay of the second N-channel waveguide medium radio frequency optical signals. The continuously adjustable optical delay structure includes multiple cascaded micro-ring structures, and the delay of the radio frequency optical signals is continuously adjusted with high precision by tuning the coupling coefficient of the micro-rings and the additional phase shift. The optical switch of the receiving OTTD array 72 is used to switch the optical path of the second N-channel waveguide medium radio frequency optical signals passing through the continuously adjustable optical delay line structure of the receiving OTTD array 72. The incremental adjustment delay line structure of the receiving OTTD array 72 includes optical waveguides of different lengths. By controlling the optical switch of the transmitting OTTD array 72, the second N-channel waveguide medium radio frequency optical signals passing through the continuously adjustable optical delay line structure of the receiving OTTD array 72 are transmitted through incremental adjustment delay lines of different lengths, thereby generating quantitative delay adjustment.

[0049] The second on-chip integrated SOA array 13 includes: a second uplink RF optical signal SOA array (6 11 ~6 1n ) and second downlink RF optical signal SOA array (6 41 ~6 4n In transmit mode, the second uplink RF optical signal SOA array (6) 11 ~6 1n ) is used to amplify n-channel radio frequency optical signals. In receive mode, the second downlink radio frequency optical signal SOA array (6 41 ~6 4n It is used to amplify the second N-channel waveguide medium radio frequency optical signal from the receiving OTTD array 72.

[0050] To better understand the above implementation, the function of each on-chip functional unit is explained below:

[0051] The tunable laser group (31-3) n It can achieve a wavelength range of λ1 to λ2. n Continuous tuning, output λ1~λ n Optical carrier wave.

[0052] The broadband electro-optic modulator group (41-4) n It realizes the electro-optical conversion of broadband radio frequency signals and outputs optical radio frequency signals.

[0053] The photodetector group (111~11) n It realizes photoelectric conversion of radio frequency optical signals and outputs broadband radio frequency signals.

[0054] The first on-chip integrated SOA array 16 includes a first uplink RF optical signal SOA array (6 31 ~6 3n ) and the first downlink RF optical signal SOA array (6 11 ~6 1n ), of which the first uplink RF optical signal SOA array (6 31 ~6 3n The RF optical signals of the n carriers λ0 are amplified respectively, and the first downlink RF optical signal SOA(6) is generated. 11 ~6 1n ) respectively for carriers λ1~λ n The radio frequency optical signal is amplified.

[0055] The first integrated OPA transceiver unit 15 includes a first receiving OPA optical antenna array 102, a first receiving OPA phase shifter array 92, a first receiving OPA power divider network 82, a second transmitting OPA power divider network 83, a second transmitting OPA phase shifter array 93, and a second transmitting OPA optical antenna array 103, thereby realizing spatial transmission and reception of radio frequency optical signals.

[0056] The OPA power divider network (82, 83) realizes input power division and output of n radio frequency optical signals into L×M optical channels.

[0057] The OPA phase shifter array (92, 93) contains L×M thermo-optical phase shifters 19, which realize phase tuning of optical signals in L×M optical channels, thereby completing optical beam deflection.

[0058] The OPA optical antenna array (102, 103) contains L×M grating-type optical antennas 18, which complete the external radiation and reception of n laser beams.

[0059] The tunable laser 30 outputs an optical carrier with a wavelength λ0.

[0060] The broadband electro-optic modulator 40 realizes the electro-optic conversion of broadband radio frequency signals and outputs optical radio frequency signals.

[0061] The photodetector 110 realizes photoelectric conversion of one optical domain multiplexing radio frequency optical signal and outputs radio frequency multiplexing signal.

[0062] The 1-to-n optical power divider 5 splits the optical radio frequency signal and outputs n radio frequency optical signals.

[0063] The wavelength division multiplexer 12 realizes n carriers λ1 to λ2. n The optical radio frequency signal is split and output as a single optical domain combined signal.

[0064] The integrated OTTD array 17 includes a transmitting OTTD array 71 and a receiving OTTD array 72. Based on true time delay technology, it generates a relative phase shift between the transmitting and receiving signals of the T / R component, thereby realizing microwave beam direction scanning of the optically controlled phased array.

[0065] The OTTD array (71, 72) includes a continuously adjustable optical delay line structure, an optical switch, and an incrementally adjustable delay line structure, simultaneously enabling control of the delay amount of n radio frequency optical signals. The continuously adjustable optical delay structure includes multiple cascaded micro-ring structures, and the delay of the radio frequency optical signal is continuously adjusted with high precision by tuning the coupling coefficient of the micro-rings and adding a phase shift. The optical switch switches the optical path, and the incrementally adjustable delay line structure includes optical waveguides of different lengths. By adjusting the optical switch, the radio frequency optical signal can be transmitted through incrementally adjustable delay lines of different lengths, generating a specific amount of delay adjustment.

[0066] The second on-chip integrated SOA array 13 includes a second uplink RF optical signal SOA array (6 11 ~6 1n ) and second downlink RF optical signal SOA array (6 41 ~6 4n ), of which the second uplink RF optical signal SOA array (6 11 ~6 1n The RF optical signals of the n carriers λ0 are amplified respectively, and the second downlink RF optical signal SOA array (6 41 ~6 4n ) respectively for carriers λ1~λ n The radio frequency optical signal is amplified.

[0067] The second integrated OPA transceiver unit 14 includes a first transmitting OPA power divider network 81, a first transmitting OPA phase shifter array 91, a first transmitting OPA optical antenna array 101, a second receiving OPA optical antenna array 104, a second receiving OPA phase shifter array 94, and a second receiving OPA power divider network 84, thereby realizing optical delay control of multi-channel radio frequency signals and spatial transmission and reception of radio frequency optical signals.

[0068] The OPA power divider network (81, 84) realizes input power division and output of n radio frequency optical signals into L×M optical channels.

[0069] The OPA phase shifter array (91, 94) contains L×M thermo-optical phase shifters 19, which realize phase tuning of optical signals in L×M optical channels, thereby completing optical beam deflection.

[0070] The OPA optical antenna array (101, 104) contains L×M grating-type optical antennas 18, which complete the external radiation and reception of n laser beams in space.

[0071] To better understand the above implementation, the relationship between the various on-chip functional units is explained below:

[0072] In transmit mode, the optically controlled phased array front-end system transmits microwave signals from the beam control chip 2 inside the satellite cabin to the optically controlled array antenna front-end chip 1 outside the satellite cabin. The microwave transmitter outputs a broadband microwave signal, and the tunable laser 30 outputs an optical carrier with wavelength λ0. The microwave signal is electro-optically converted by the broadband electro-optic modulator 40 and modulated onto the optical carrier with wavelength λ0. The system then outputs n radio frequency optical signals through a 1-to-n optical power divider 5, which are respectively transmitted by n second uplink radio frequency optical signal SOA arrays (6...). 11 ~6 1nThe signal is amplified; the relative time delay difference between N channels is generated by the transmitting OTTD array 71, and then transmitted sequentially through the first transmitting OPA power divider network 81, the first transmitting OPA phase shifter array 91 and the first transmitting OPA optical antenna array 101 of the second integrated OPA transceiver unit 14, to output the first N channels of space radio frequency optical signals. The space light is transmitted to the front-end chip 1 of the satellite cabin external optical control array antenna. The first integrated OPA transceiver unit 15 receives the first N channels of space radio frequency optical signals, that is, sequentially through the first receiving OPA optical antenna array 102, the first receiving OPA phase shifter array 92 and the first receiving OPA power divider network 82, and outputs the first N channels of waveguide medium radio frequency optical signals, which are respectively transmitted through the first uplink radio frequency optical signal SOA array (6 31 ~6 3n Optical amplification is performed, and finally, a photodetector (111~11) is used. n The system completes the photoelectric conversion of radio frequency optical signals and outputs N broadband microwave signals. The microwave signals are radiated from the N antennas via the T / R module, achieving power combining in space.

[0073] In receiving mode, the optically controlled phased array front-end system transmits microwave signals from the external optically controlled array antenna front-end chip 1 to the internal beam control chip 2. The space microwave signals are received by N antennas and input from the T / R component to the broadband electro-optic modulator group (41-4). n The electro-optical conversion is completed, and the signals are modulated onto the tunable laser array (31-3). n The N emitted wavelengths are λ1~λ n On the optical carrier, N optical carrier radio frequency signals are output, which are generated by the first downlink radio frequency optical signal SOA array (6 11 ~6 1n The signal is amplified and transmitted sequentially through the second transmitting OPA optical antenna array 103, the second transmitting OPA phase shifter array 93, and the second transmitting OPA power divider network 83 of the first integrated OPA transceiver unit 15, outputting the second N channels of space radio frequency optical signals. The space optical signals are transmitted to the beam control chip 2 inside the satellite cabin. The second integrated OPA transceiver unit 14 receives N space radio frequency optical signals, that is, sequentially through the second receiving OPA optical antenna array 104, the second receiving OPA phase shifter array 94, and the second receiving OPA power divider network 84, outputting the second N channels of waveguide medium radio frequency optical signals. The receiving OTTD array 72 generates N relative time delay differences between channels, which are respectively controlled by the second downlink radio frequency optical signal SOA array (6... 41 ~6 4n Optical amplification is performed, and wavelength division multiplexer 12 converts N carriers λ1 to λ2. n The optical radio frequency signal is multiplexed to output a single optical domain combined radio frequency optical signal, which is then converted by photodetector 110 to output the combined radio frequency signal, which is then sent to microwave signal receiver for subsequent signal processing.

[0074] In summary, this embodiment discloses an on-chip integrated, cable-free optically controlled phased array front-end system. Utilizing advanced integrated optoelectronics and three-dimensional heterogeneous integration technology, combined with all-solid-state free-space optical transmission methods, it highly integrates passive devices such as integrated optical phased arrays, optical waveguides, optical true delay lines, optical power dividers, and wavelength division multiplexers, as well as active devices such as lasers, modulators, detectors, and on-chip integrated semiconductor optical amplifiers, onto the same substrate. Employing integrated optical phased array multi-beam communication technology, it constructs an intra-satellite and extra-vehicle space optical channel. Using lasers as the information carrier, it enables wireless optical communication through free-space transmission of lasers, allowing the extra-vehicle antenna front-end to control the intra-vehicle beam. This solves the size and weight limitations and the significant environmental impact of delay jitter caused by optical cable networks, achieving a smaller, lighter, and lower-power optically controlled phased array system with improved adaptability to the space environment.

[0075] Although the present invention has been described in detail through the preferred embodiments above, it should be understood that the above description should not be considered as a limitation of the present invention. Various modifications and substitutions to the present invention will be apparent to those skilled in the art after reading the above description. Therefore, the scope of protection of the present invention should be defined by the appended claims.

Claims

1. An on-chip integrated cableless optically controlled phased array front-end system, characterized in that, The system includes an external optical control array antenna front-end chip (1) and an internal beam control chip (2). In the transmission mode, the internal beam control chip (2) processes microwave signals and outputs the first N spatial radio frequency optical signals. The first N spatial radio frequency optical signals are transmitted to the external optical control array antenna front-end chip (1) via spatial light. The external optical control array antenna front-end chip (1) processes and outputs the first N spatial radio frequency optical signals. In receiving mode, the front-end chip (1) of the satellite cabin external optical control array antenna processes the microwave signal and outputs the second N-channel space radio frequency optical signal. The second N-channel space radio frequency optical signal is transmitted to the satellite cabin internal beam control chip (2) via space light. The satellite cabin internal beam control chip (2) processes the second N-channel space radio frequency optical signal and outputs radio frequency multiplexing signal. The satellite external optical control array antenna front-end chip (1) includes: a tunable laser group, a broadband electro-optic modulator group, a first on-chip integrated SOA array (16), a first integrated OPA transceiver unit (15), and a photodetector group. The satellite cabin beam control chip (2) includes: a tunable laser (30), a broadband electro-optic modulator (40), a 1-to-n optical power divider (5), a wavelength division multiplexer (12), a second on-chip integrated SOA array (13), an integrated OTTD array (17), a second integrated OPA transceiver unit (14), and a photodetector (110). In the transmission mode, the microwave signal transmitter outputs a broadband microwave signal, the tunable laser (30) outputs an optical carrier with wavelength λ0, the broadband microwave signal is electro-optically converted by the broadband electro-optic modulator (40) and modulated onto the optical carrier with wavelength λ0; the 1-to-n optical power divider (5) is used to split the modulated optical carrier with wavelength λ0 and output n-channel carrier λ0 radio frequency optical signals. The second on-chip integrated SOA array (13) is used to amplify the n-channel carrier λ0 radio frequency optical signals, and generate N-channel relative time delay differences through the integrated OTTD array (17) and emit the first N-channel spatial radio frequency optical signals through the second integrated OPA transceiver unit (14); The first N-channel space radio frequency optical signals are transmitted via space light to the front-end chip (1) of the satellite cabin external optical control array antenna. The first integrated OPA transceiver unit (15) is used to process the first N-channel space radio frequency optical signals and output the first N-channel waveguide medium radio frequency optical signals. The first on-chip integrated SOA array (16) is used to amplify the first N-channel waveguide medium radio frequency optical signals. The photodetector group performs photoelectric conversion on the first N-channel waveguide medium radio frequency optical signals from the first on-chip integrated SOA array (16) and outputs N-channel broadband microwave signals. The N-channel broadband microwave signals are radiated from the N antennas via the T / R component and power combining is achieved in space. In receive mode, the space microwave signal is received by N antennas and input from the T / R component to the broadband electro-optic modulator group. The tunable laser group outputs N channels with wavelengths of λ1~λ2. n The optical carrier wave, the space microwave signal, is electro-optically converted by the broadband electro-optic modulator group and modulated onto the N channels with wavelengths λ1~λ2. n On the optical carrier, N optical radio frequency signals are output; the first on-chip integrated SOA array (16) amplifies the N optical radio frequency signals, processes them through the first integrated OPA transceiver unit (15), and outputs the second N spatial radio frequency optical signals. The second N-channel space radio frequency optical signal is transmitted to the beam control chip (2) inside the satellite cabin via space light; the second integrated OPA transceiver unit (14) is used to process the second N-channel space radio frequency optical signal and output the second N-channel waveguide medium radio frequency optical signal; the second N-channel waveguide medium radio frequency optical signal generates N channel relative time delay differences through the integrated OTTD array (17); the second on-chip integrated SOA array (13) amplifies the second N-channel waveguide medium radio frequency optical signal from the integrated OTTD array (17) and outputs N carriers λ1~λ n Optical radio frequency signals; The wavelength division multiplexer (12) divides the N carriers λ1~λ n The optical radio frequency signal is multiplexed to output a single optical domain combined radio frequency optical signal, which is then converted by a photodetector (110) to output a combined radio frequency signal, which is then fed into a microwave signal receiver for subsequent signal processing.

2. The on-chip integrated cableless optically controlled phased array front-end system according to claim 1, characterized in that, The first on-chip integrated SOA array (16) includes a first uplink RF optical signal SOA array (6). 31 ~6 3n ) and the first downlink RF optical signal SOA array (6 11 ~6 1n ); In transmit mode, the first uplink RF optical signal SOA array (6 31 ~6 3n ) is used to amplify the first N-channel waveguide medium radio frequency optical signals from the first integrated OPA transceiver unit (15); In receive mode, the first downlink radio frequency optical signal SOA (6 11 ~6 1n It is used to amplify the N-channel optical carrier radio frequency optical signals.

3. The on-chip integrated cableless optically controlled phased array front-end system according to claim 1, characterized in that, The first integrated OPA transceiver unit (15) includes: a first receiving OPA optical antenna array (102), a first receiving OPA phase shifter array (92) and a first receiving OPA power divider network (82) that are interconnected; and a second transmitting OPA power divider network (83), a second transmitting OPA phase shifter array (93) and a second transmitting OPA optical antenna array (103) that are interconnected. In the transmission mode, the first N spatial radio frequency optical signals are processed sequentially by the first receiving OPA optical antenna array (102), the first receiving OPA phase shifter array (92) and the first receiving OPA power divider network (82) to output the first N waveguide medium radio frequency signals. In receive mode, the N optical radio frequency signals from the first on-chip integrated SOA array (16) are processed sequentially by the second transmit OPA power divider network (83), the second transmit OPA phase shifter array (93) and the second transmit OPA optical antenna array (103) to output the second N spatial radio frequency optical signals.

4. The on-chip integrated cableless optically controlled phased array front-end system according to claim 3, characterized in that, Both the first receiving OPA optical antenna array (102) and the second transmitting OPA optical antenna array (103) include: a first L×M grating-type optical antennas; Both the first receiving OPA phase shifter array (92) and the second transmitting OPA phase shifter array (93) include: a first L×M thermo-optical phase shifter; Both the first receiving OPA power divider network (82) and the second transmitting OPA power divider network (83) include: a first L×M optical channel; In the transmission mode, the first L×M grating type optical antenna of the first receiving OPA optical antenna array (102) is used to receive the first N-channel spatial radio frequency optical signals transmitted through spatial light and output L×M-channel optical channel signals. The first L×M thermo-optical phase shifters of the first receiving OPA phase shifter array (92) are used for phase tuning processing of the optical signals of the first L×M optical channels to complete the optical beam deflection. The first L×M optical channel optical signal of the first receiving OPA power divider network (82) is used to power divide the first L×M optical channel optical signal after phase tuning and output the first N waveguide medium radio frequency optical signal. In receive mode, the first L×M optical channel of the second transmit OPA power divider network (83) is used to power divide the N optical carrier radio frequency signals from the first on-chip integrated SOA array (16) to output L×M optical channel optical signals. The first L×M thermo-optical phase shifters of the second transmitting OPA phase shifter array (93) are used for phase tuning processing of the optical signals of the first L×M optical channels to complete the optical beam deflection; The first L×M grating type optical antenna (18) of the second transmitting OPA optical antenna array (103) is used to receive the phase-tuned L×M optical channel optical signals and output the second N spatial radio frequency optical signals.

5. The on-chip integrated cableless optically controlled phased array front-end system according to claim 1, characterized in that, The second integrated OPA transceiver unit (14) includes: a first transmitting OPA power divider network (81), a first transmitting OPA phase shifter array (91), a first transmitting OPA optical antenna array (101), a second receiving OPA optical antenna array (104), a second receiving OPA phase shifter array (94), and a second receiving OPA power divider network (84). In the transmission mode, the N spatial radio frequency optical signals from the integrated OTTD array (17) are processed sequentially by the first transmit OPA power divider network (81), the first transmit OPA phase shifter array (91) and the first transmit OPA optical antenna array (101) to output the first N spatial radio frequency optical signals. In the receiving mode, the second N-channel spatial radio frequency optical signals are processed sequentially by the second receiving OPA optical antenna array (104), the second receiving OPA phase shifter array (94), and the second receiving OPA power divider network (84) to output the second N-channel waveguide medium radio frequency optical signals.

6. The on-chip integrated cableless optically controlled phased array front-end system according to claim 5, characterized in that, Both the first transmitting OPA power divider network (81) and the second receiving OPA power divider network (84) include: a second L×M optical channel; Both the first transmitting OPA phase shifter array (91) and the second receiving OPA phase shifter array (94) include: a second L×M thermo-optical phase shifter; Both the first transmitting OPA optical antenna array (101) and the second receiving OPA optical antenna array (104) include: a second L×M grating-type optical antenna; In transmit mode, the second L×M optical channel of the first transmit OPA power divider network (81) is used to output L×M optical channels for the power divider of the n carrier λ0 radio frequency optical signals from the integrated OTTD array (17); The second L×M thermo-optical phase shifters of the first transmitting OPA phase shifter array (91) are used for phase tuning processing of the optical signals of the second L×M optical channels to complete the optical beam deflection; The second L×M grating-type optical antennas of the first transmitting OPA optical antenna array (101) are used to power divide the phase-tuned second L×M optical channel signals and output the first N spatial radio frequency optical signals. In the receiving mode, the second L×M grating-type optical antennas of the second receiving OPA optical antenna array (104) are used to receive the second N-channel spatial radio frequency optical signals transmitted via spatial light, and output the second L×M-channel optical channel signals. The second L×M thermo-optical phase shifters of the second receiving OPA phase shifter array (94) are used for phase tuning processing of the optical signals of the L×M optical channels to complete the optical beam deflection; The second L×M optical channel of the second receiving OPA power divider network (84) is processed by phase tuning and outputs the second N waveguide medium radio frequency optical signal.

7. The on-chip integrated cableless optically controlled phased array front-end system according to claim 1, characterized in that, The integrated OTTD array (17) includes a transmitting OTTD array (71) and a receiving OTTD array (72). In transmit mode, the n carrier λ0 radio frequency optical signals from the second on-chip integrated SOA array (13) generate N relative time delay differences between channels through the transmit OTTD array (71); In the receiving mode, the second N-channel waveguide medium radio frequency optical signal generates N-channel relative time delay differences through the receiving OTTD array (72).

8. The on-chip integrated cableless optically controlled phased array front-end system according to claim 7, characterized in that, Both the transmitting OTTD array (71) and the receiving OTTD array (72) include: a continuously adjustable optical delay line structure, an optical switch, and an incrementally adjustable delay line structure. In the transmission mode, the continuously adjustable optical delay line structure of the transmitting OTTD array (71) is used to continuously adjust the delay of the n radio frequency optical signals; the optical switch of the transmitting OTTD array (71) is used to switch the optical path of the n radio frequency optical signals passing through the continuously adjustable optical delay line structure of the transmitting OTTD array (71); the incremental adjustment delay line structure of the transmitting OTTD array (71) is used to transmit the n radio frequency optical signals passing through the continuously adjustable optical delay line structure of the transmitting OTTD array (71) through incremental adjustment delay lines of different lengths, thereby generating quantitative delay adjustment; In the receiving mode, the continuously adjustable optical delay line structure of the receiving OTTD array (72) is used to continuously adjust the delay of the second N waveguide medium radio frequency optical signals; the optical switch of the receiving OTTD array (72) is used to switch the optical path of the second N waveguide medium radio frequency optical signals passing through the continuously adjustable optical delay line structure of the receiving OTTD array (72); the incremental adjustment delay line structure of the receiving OTTD array (72) is used to transmit the second N waveguide medium radio frequency optical signals passing through the continuously adjustable optical delay line structure of the receiving OTTD array (72) through incremental adjustment delay lines of different lengths, thereby generating quantitative delay adjustment.

9. The on-chip integrated cableless optically controlled phased array front-end system according to claim 8, characterized in that, The second on-chip integrated SOA array (13) includes: a second uplink RF optical signal SOA array (6 11 ~6 1n ) and the second downlink RF optical signal SOA array (6 41 ~6 4n ), In transmit mode, the second uplink RF optical signal SOA array (6 11 ~6 1n This is used to amplify n-channel radio frequency optical signals; In receive mode, the second downlink RF optical signal SOA array (6 41 ~6 4n () is used to amplify the second N-channel waveguide medium radio frequency optical signal from the receiving OTTD array (72).

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