RF optical transceiver integrated components and systems

Abstract

The present invention discloses a radio frequency optical transmission transceiver integrated component and system, belonging to the field of radio frequency optical transmission technology. The present invention includes a light source module, a radio frequency modulation module, two lens coupling modules, a single-core optical fiber array, a detector chip, a thermoelectric cooler and an electrical interconnection substrate; the light source module generates continuous wave laser; the radio frequency modulation module is used for electro-optical modulation of radio frequency signals to realize automatic control of the modulator bias point; the lens coupling module is used for optical coupling; the single-core optical fiber array is used for coupling with optical fiber; the detector chip is used for conversion of optically carried radio frequency signals to radio frequency signals; the thermoelectric cooler performs precise temperature control; and the electrical interconnection substrate is used for pin lead-out. The present invention can meet the application requirements of radio frequency optical transmission with high integration, broadband, high gain and low noise.

Description

Technical Field

[0001] The present invention belongs to the field of radio frequency optical transmission technology, and in particular relates to a radio frequency optical transmission transceiver integrated component and system. Background Art

[0002] RF-optical (ROF) technology has broad application prospects in military and civilian fields such as microwave photon radar, radio telescope, and drone communication. RF-optical transceiver components are responsible for the conversion from RF to optical domain and from optical domain to RF, and are an important part of RF-optical systems.

[0003] The technological development in the future military and civilian fields has put forward the requirements of high integration, broadband, high gain and low noise for RF optical transceiver components, which are specifically reflected in:

[0004] Highly integrated components can improve the adaptability to miniaturized platforms and the reliability of working in harsh environments. However, most current RF optical transmission systems are still based on discrete lasers, modulators, detector elements or modules with low integration.

[0005] Broadbandization can improve the imaging resolution of microwave photon radar and the amount of data transmitted in optical radio frequency communication. The direct modulation module is limited by the performance of the direct modulation laser and has limited bandwidth. The bandwidth of the external modulation module using bulk lithium niobate modulator can reach 40GHz, but it is large in size and difficult to achieve high integration.

[0006] Gain and noise factor are important indicators for evaluating the performance of RF optical transmission systems. Transmission requires high gain and reception requires low noise. Limited by the current device level, RF optical transmission transceiver components will bring huge RF conversion losses and additional noise, making it difficult to meet the requirements of high transmission gain and low reception noise.

[0007] Therefore, there is an urgent need to develop a new type of RF optical transmission transceiver component to meet the requirements of high integration, broadband, high gain and low noise RF optical transmission applications. Summary of the invention

[0008] The purpose of the present invention is to provide a radio frequency optical transmission receiving integrated component and system, which can meet the radio frequency optical transmission application requirements of high integration, broadband, high gain and low noise.

[0009] Specifically, on the one hand, the present invention provides a radio frequency optical transmission and reception integrated component, including a light source module, a radio frequency modulation module, two lens coupling modules, a single-core optical fiber array, a detector chip, a thermoelectric cooler, and an electrical interconnect substrate;

[0010] The light source module comprises a laser chip, a backlight detector and a thermistor; the laser chip is used to generate continuous wave laser; the backlight detector is used to monitor the optical power, and cooperates with the circuit outside the radio frequency optical transceiver integrated component to realize automatic power control of the laser chip; the thermistor is used to monitor the temperature of the laser chip, and cooperates with the thermoelectric cooler and the circuit outside the radio frequency optical transceiver integrated component to realize automatic temperature control;

[0011] The radio frequency modulation module comprises a thin film lithium niobate modulator chip and a monitoring detector; the thin film lithium niobate modulator chip is used for electro-optical modulation of radio frequency signals, and the monitoring detector cooperates with the backlight detector and the circuit outside the radio frequency optical transmission and reception integrated component to realize automatic control of the modulator bias point;

[0012] There are two lens coupling modules, each of which adopts a double-lens + optical isolator optical coupling structure, and is used for optical coupling between the laser chip and the thin-film lithium niobate modulator chip, and between the thin-film lithium niobate modulator chip and the single-core optical fiber array;

[0013] The single-core optical fiber array comprises a first single-core optical fiber array and a second single-core optical fiber array, wherein the first single-core optical fiber array is used for coupling the thin-film lithium niobate modulator chip with the optical fiber, and the second single-core optical fiber array is used for coupling the detector chip with the optical fiber;

[0014] The detector chip is used for converting the light-carrying radio frequency signal into a radio frequency signal;

[0015] The thermoelectric cooler is arranged at the bottom of the entire radio frequency optical transmission and reception integrated component, and cooperates with the thermistor and the circuit outside the radio frequency optical transmission and reception integrated component to realize the precise temperature control of the light source module, the lens coupling module, the radio frequency modulation module, the single-core optical fiber array and the detector chip;

[0016] The electrical interconnection substrate is used for leading out control pins and power pins on the laser chip, the thin-film lithium niobate modulator chip and the detector chip.

[0017] Furthermore, the radio frequency optical transmission and receiving integrated component,

[0018] When receiving a radio frequency signal, the radio frequency signal received by the radio frequency optical transmission and reception integrated component enters the thin-film lithium niobate modulator chip, and the continuous wave laser generated by the laser chip is collimated and focused by a lens coupling module, and then coupled into the thin-film lithium niobate modulator chip, and the radio frequency signal is modulated into a light-carrying radio frequency signal, which is coupled into the first single-core optical fiber array through another lens coupling module and transmitted backward through the optical fiber;

[0019] When transmitting a radio frequency signal, the light-carrying radio frequency signal is coupled into the detector chip by the second single-core optical fiber array, and is demodulated into a radio frequency signal and then transmitted forward.

[0020] Furthermore, the radio frequency optical transmission and receiving integrated component also includes a radio frequency transmission and receiving enlarged module and a tube shell;

[0021] The radio frequency receiving and transmitting amplification module is used for switching between radio frequency signal reception and transmission, and radio frequency amplification;

[0022] The tube shell provides a radio frequency interface, a low frequency interface, an optical interface for external connection, and an airtight packaging of the entire radio frequency optical transmission and reception integrated component.

[0023] Furthermore, the entire radio frequency optical transmission and reception integrated component is hermetically packaged by the tube shell.

[0024] Furthermore, the tube shell includes a radio frequency connector, a plurality of low frequency connectors and an optical fiber tail tube.

[0025] Furthermore, the RF transmission and reception module includes a RF power amplifier chip, a RF low noise amplifier chip, a RF switch chip and a RF substrate;

[0026] The RF receiving link and RF transmitting link of the RF receiving and transmitting large module are respectively interconnected with the RF modulation module and the detector chip through gold wire jumpers for RF signal connection, and are welded and interconnected with the RF connector on the tube shell to achieve external RF connection;

[0027] The RF substrate of the RF transceiver module is interconnected with the low-frequency connector of the tube shell through a gold wire jumper, and the low-frequency control wiring and power supply wiring on the electrical interconnection substrate are interconnected with the low-frequency connector of the tube shell through a gold wire jumper to realize the lead-out of the control and power supply pins;

[0028] The pigtail of the single-core optical fiber array passes through the optical fiber pigtail tube on the tube shell.

[0029] Furthermore, the pigtail of the single-core optical fiber array is airtightly welded to the optical fiber pigtail tube.

[0030] Furthermore, the radio frequency optical transmission and receiving integrated component,

[0031] When receiving a radio frequency signal, the radio frequency signal enters the radio frequency optical transmission and reception integrated component from the radio frequency connector, passes through the radio frequency switch chip and the radio frequency low noise amplifier chip, and then enters the thin-film lithium niobate modulator chip. The continuous wave laser generated by the laser chip is collimated and focused by a lens coupling module, and then coupled into the thin-film lithium niobate modulator chip, modulating the radio frequency signal into a light-carrying radio frequency signal, which is coupled into the first single-core optical fiber array through another lens coupling module, and then transmitted backward through the optical fiber through the optical fiber tail tube;

[0032] When transmitting RF signals, the light-carrying RF signals pass through the optical fiber through the optical fiber tail tube, are coupled into the detector chip by the second single-core optical fiber array, are demodulated into RF signals, pass through the RF power amplifier chip and the RF switch chip, and are transmitted through the RF connector.

[0033] On the other hand, the present invention also provides a radio frequency optical transmission and receiving integrated system, including the radio frequency optical transmission and receiving integrated component mentioned above.

[0034] The radio frequency optical transmission and receiving integrated component and system of the present invention have the following beneficial effects:

[0035] In terms of form, the radio frequency optical transmission and reception integrated components and systems of the present invention use optoelectronic multi-chip hybrid micro-assembly technology to integrate radio frequency chips, laser chips, thin-film lithium niobate modulator chips, detector chips, etc. on an electrically interconnected substrate to achieve high integration.

[0036] In terms of performance, the RF optical transmission and reception integrated components and systems of the present invention adopt a large-bandwidth thin-film lithium niobate modulator chip. The upper limit of the bandwidth of the transceiver link is determined by the bandwidth of the thin-film lithium niobate modulator chip and the detector chip. The thin-film lithium niobate modulator chip used in the present invention has the characteristics of large bandwidth and low half-wave voltage, and its size is only 1 / 10 of the traditional lithium niobate modulator. Combined with the detector chip with a large response bandwidth, the RF optical transmission and reception integrated components and systems of the present invention can meet the needs of broadband transmission and reception and achieve broadbandization.

[0037] In addition to electro-optical and photoelectric conversion, the RF optical transmission and reception integrated component of the present invention also integrates a RF power amplifier chip and a RF low-noise amplifier chip. The cascade link can greatly improve the loss and noise of the optical link itself, achieving high transmission gain and low reception noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a principle block diagram of embodiment 1 of the present invention.

[0039] Figure 2 It is a principle block diagram of embodiment 2 of the present invention.

[0040] Figure 3 It is a structural diagram of embodiment 2 of the present invention.

[0041] Figure 4 It is a schematic diagram of the receiving link of embodiment 2 of the present invention.

[0042] Figure 5 It is a schematic diagram of the transmission link of embodiment 2 of the present invention.

[0043] Figure 6 It is a schematic diagram of the test results of Example 2 of the present invention.

[0044] Symbols in the figure: 1-light source module, 101-laser chip, 102-backlight detector, 103-thermistor, 2-lens coupling module, 201-lens, 202-optical isolator, 3-RF modulation module, 301-thin film lithium niobate modulator chip, 302-monitoring detector, 4-single-core optical fiber array, 401-first single-core optical fiber array, 402-second single-core optical fiber array, 5-detector chip, 6-thermoelectric cooler, 7-electrical interconnection substrate, 8-RF transmission and reception enlargement module, 801-RF power amplifier chip, 802-RF low noise amplifier chip, 803-RF switch chip, 804-RF substrate, 9-tube shell, 901-RF connector, 902-low frequency connector, 903-optical fiber tail tube. DETAILED DESCRIPTION

[0045] The present invention is further described in detail below in conjunction with embodiments and with reference to the accompanying drawings.

[0046] Embodiment 1:

[0047] One embodiment of the present invention is a radio frequency optical transmission and reception integrated component, which is used for radio frequency to optical domain and optical domain to radio frequency radio frequency transmission and reception functions. Figure 1 As shown, the radio frequency optical transmission and receiving integrated component of the present invention includes a radio frequency receiving channel and a radio frequency transmitting channel. The radio frequency receiving channel completes the conversion of radio frequency signals to optical radio frequency signals; the radio frequency transmitting channel completes the conversion of optical radio frequency signals to radio frequency signals. The radio frequency optical transmission and receiving integrated component of the present invention specifically includes: a light source module 1, two lens coupling modules 2, a radio frequency modulation module 3, a single-core optical fiber array 4, a detector chip 5, a thermoelectric cooler 6 and an electrical interconnect substrate 7.

[0048] The light source module 1 includes a laser chip 101, a backlight detector 102 and a thermistor 103. The laser chip 101 is used to generate continuous wave laser, the backlight detector 102 is used to monitor the optical power, and can cooperate with the circuit outside the radio frequency optical transceiver integrated component to realize automatic power control of the laser chip, and the thermistor 103 is used to monitor the temperature of the laser chip, and can cooperate with the thermoelectric cooler 6 and the circuit outside the radio frequency optical transceiver integrated component to realize automatic temperature control. The types of laser chips 101 include but are not limited to DFB, FP, VCSEL, etc.

[0049] The RF modulation module 3 includes a thin film lithium niobate modulator chip 301 and a monitoring detector 302. The thin film lithium niobate modulator chip 301 is used for electro-optical modulation of the RF signal, and the monitoring detector 302 can cooperate with the backlight detector 102 and the circuit outside the RF optical transceiver integrated component to realize automatic control of the modulator bias point.

[0050] There are two lens coupling modules 2, each lens coupling module 2 adopts a double lens + optical isolator optical coupling structure, for example, each lens coupling module 2 includes two lenses 201 and an optical isolator 202, which are used for optical coupling between the laser chip 101 and the thin-film lithium niobate modulator chip 301, and between the thin-film lithium niobate modulator chip 301 and the single-core optical fiber array 4. The optical isolator can prevent reflected light from entering the laser chip. The types of lenses 201 include but are not limited to silicon lenses, quartz lenses, etc.

[0051] The single-core fiber array 4 comprises a first single-core fiber array 401 and a second single-core fiber array 402, wherein the first single-core fiber array 401 is used for coupling the thin-film lithium niobate modulator chip 301 with the optical fiber, and the second single-core fiber array 402 is used for coupling the detector chip 5 with the optical fiber.

[0052] The detector chip 5 is used for converting the light-carrying radio frequency signal into a radio frequency signal.

[0053] The thermoelectric cooler 6 is used in conjunction with the thermistor 103 and the peripheral automatic temperature control circuit in the circuit outside the radio frequency optical transmission and reception integrated component to achieve precise temperature control of the light source module 1, the lens coupling module 2, the radio frequency modulation module 3, the single-core optical fiber array 4 and the detector chip 5. Preferably, the thermoelectric cooler 6 is arranged at the lower part of the entire radio frequency optical transmission and reception integrated component to control the temperature of the radio frequency optical transmission and reception integrated component as a whole, that is, to control the temperature of the light source module 1, the lens coupling module 2, the radio frequency modulation module 3, the single-core optical fiber array 4 and the detector chip 5, so that the radio frequency optical transmission and reception integrated component has higher environmental stability.

[0054] The electrical interconnection substrate 7 is used to lead out control pins and power pins on the laser chip 101, the thin-film lithium niobate modulator chip 301 and the detector chip 5. The material of the electrical interconnection substrate 7 includes but is not limited to single crystal AlN, HTCC, LTCC and the like.

[0055] The above-mentioned RF optical transmission transceiver integrated component is an optical transceiver module that realizes photoelectric conversion and electro-optical conversion, and can meet the needs of highly integrated and broadband RF optical transmission.

[0056] Furthermore, in another embodiment, based on the above-mentioned radio frequency optical transmission and reception integrated component, a radio frequency transmission and reception enlargement module 8 and a tube shell 9 are added, such as Figure 2 As shown, the optical transceiver module can be convenient for practical application, and the RF transceiver enlarged module 8 can also meet the application requirements of high transmission gain and low reception noise of the entire RF optical transceiver integrated component.

[0057] The RF transceiver amplification module 8 includes an RF power amplifier chip 801, an RF low noise amplifier chip 802, an RF switch chip 803 and an RF substrate 804, which are used for switching the transceiver path and RF amplification. The material of the RF substrate 804 includes but is not limited to single crystal AlN, HTCC, LTCC, etc.

[0058] The tube shell 9 includes a radio frequency connector 901, a plurality of low frequency connectors 902 and a fiber tail tube 903, which are respectively used for external connection of the radio frequency interface / low frequency interface / optical interface. Preferably, the tube shell 9 hermetically seals the entire radio frequency optical transmission and reception integrated component. The material of the tube shell 9 includes, but is not limited to, alloys such as Kovar, aluminum silicon, molybdenum copper, and tungsten copper.

[0059] Figure 1 and Figure 2 The components connected by solid arrows are optical paths, and the components connected by dotted arrows are radio frequency paths.

[0060] Figure 1 The signal flow in the RF optical transceiver integrated component is:

[0061] When receiving a radio frequency signal, the radio frequency signal received by the radio frequency optical transmission and reception integrated component enters the thin film lithium niobate modulator chip 301, and the continuous wave laser generated by the laser chip 101 is collimated and focused by the lens coupling module 2, and then coupled into the thin film lithium niobate modulator chip 301, modulating the radio frequency signal into a light-carrying radio frequency signal, and then coupled into the first single-core optical fiber array 401 through another lens coupling module 2, and then transmitted backward through the optical fiber;

[0062] When transmitting a radio frequency signal, the optical radio frequency signal is coupled into the detector chip 5 by the second single-core optical fiber array 402, and is demodulated into a radio frequency signal and then transmitted forward.

[0063] Figure 2 The signal flow in the RF optical transceiver integrated component is:

[0064] When receiving a radio frequency signal, the radio frequency optical transmission and receiving integrated component receives the radio frequency signal through the radio frequency connector 901, passes through the radio frequency switch 803 and the radio frequency low noise amplifier chip 802, and enters the thin film lithium niobate modulator chip 301. The continuous wave laser generated by the laser chip 101 is collimated and focused by the lens coupling module 2, and then coupled into the thin film lithium niobate modulator chip 301, modulating the radio frequency signal into a light-carrying radio frequency signal, and coupled into the first single-core optical fiber array 401 through another lens coupling module 2, and transmitted backward through the optical fiber through the optical fiber tail tube 903;

[0065] When transmitting an RF signal, the light-carrying RF signal passes through the optical fiber through the optical fiber tail tube 903, is coupled into the detector chip 5 by the second single-core optical fiber array 402, is demodulated into an RF signal, passes through the RF power amplifier chip 801 and the RF switch 803, and is transmitted through the RF connector 901.

[0066] The structure of the radio frequency optical transmission and reception integrated component of this embodiment is as follows Figure 3 As shown, the RF receiving link and RF transmitting link of the RF receiving and transmitting large module 8 can be interconnected with the RF modulation module 3 and the detector chip 5 through gold wire jumpers for RF signals, and are welded and interconnected with the RF connector 901 on the tube shell 9 to achieve external RF connection; the RF substrate 804 of the RF receiving and transmitting large module 8 is interconnected with the low-frequency connectors 902 on both sides of the tube shell 9 through gold wire jumpers, and the low-frequency control wiring and power supply wiring on the electrical interconnection substrate 7 are interconnected with the low-frequency connectors 902 on both sides of the tube shell 9 through gold wire jumpers to achieve control and power supply pin extraction; the two pigtails of the single-core optical fiber array 4 pass through the optical fiber tail tube 903 on the tube shell 9. Preferably, in another embodiment, the pigtail is airtightly welded to the optical fiber tail tube 9.

[0067] The length, width and height dimensions of the RF optical transmission and reception integrated component of this embodiment are only 65mm×15mm×9mm. Compared with the RF optical transmission and reception system built based on discrete lasers, modulators, detectors and RF modules, the RF optical transmission and reception integrated component adopts optoelectronic multi-chip hybrid micro-assembly technology to integrate RF chips, multiple optical chips, etc. into the same housing, which greatly improves the integration level.

[0068] The following describes the principle of the radio frequency optical transmission and reception integrated component of Example 2 operating in the radio frequency reception function and the radio frequency transmission function.

[0069] 1. RF receiving function

[0070] The RF optical transmission and reception integrated component of this embodiment is connected to the external photoelectric detector through an optical fiber, and the RF switch 803 in the RF optical transmission and reception integrated component is switched to the branch where the RF low noise amplifier chip 802 is located, so that the RF receiving link can be realized. Figure 4 Assume that the RF gain of the front-stage RF low noise amplifier chip 802 is G pre , the noise factor is NF pre The RF gain of the intrinsic optical link composed of the laser chip 101, the modulator chip 301 and the photodetector in the RF optical transceiver integrated component is G E / O→O / E (dB), the noise figure is NF E / O→O / E (dB), then the cascade gain G cas and noise figure NF cas They are:

[0071]

[0072] For example, the conventional G of Ka-band RF low noise amplifier chip pre and NF pre 25dB and 3dB respectively, the conventional G E / O→O / E and NF E / O→O / E are -20dB and 30dB respectively, then the cascaded G cas and NF cas They are 5dB and 7dB respectively, which are much better than the gain and noise figure of the optical link itself, and can achieve low-noise and high-gain reception.

[0073] 2. RF transmission function

[0074] The RF optical transmission and reception integrated component of this embodiment is connected to the external laser and modulator through optical fiber, and the RF switch 803 in the RF optical transmission and reception integrated component is switched to the branch where the RF power amplifier chip 801 is located, so that the RF transmission link can be realized. Figure 5 The RF transmission chain mainly focuses on the gain characteristics. Assume that the RF gain of the subsequent RF power amplifier chip 801 is G post , then the cascade gain G cas =G E / O→O / E +G post It can be seen that the gain after cascading is much better than the gain of the optical link itself G E / O→O / E .

[0075] In addition, the radio frequency optical transmission and reception integrated component of the present invention also has a large bandwidth characteristic. The waveguide size of the thin film lithium niobate modulator chip 301 is only 1 / 10 of the waveguide size of the traditional bulk lithium niobate modulator, which is conducive to achieving high integration, and the electrode spacing can be reduced, resulting in a low half-wave voltage of <3V, while having the large bandwidth advantage of the traditional bulk lithium niobate modulator. The S21 test results within the 0.1GHz to 40GHz bandwidth of the intrinsic optical link composed of the laser chip 101, the thin film lithium niobate modulator chip 301 and the detector chip 5 in the radio frequency optical transmission and reception integrated component are as follows: Figure 6 As shown, the amplitude difference between the highest point m8 and the lowest point m9 in the band is 3.4 dB, and the 3dB bandwidth is about 40 GHz. The radio frequency optical transmission and receiving integrated component of the present invention can realize radio frequency transmission with a large bandwidth.

[0076] The above-mentioned reference drawings and specific embodiments illustrate the high integration, broadband, high transmission gain, and low reception noise characteristics of this radio frequency optical transmission and reception integrated component, which can be used in military and civilian fields such as microwave photon radar, radio telescope, and drone communication. Its advantages are mainly reflected in the following aspects:

[0077] In terms of form, the radio frequency optical transmission and reception integrated components and systems of the present invention use optoelectronic multi-chip hybrid micro-assembly technology to integrate radio frequency chips, laser chips, thin-film lithium niobate modulator chips, detector chips, etc. on an electrically interconnected substrate to achieve high integration.

[0078] In terms of performance, the RF optical transmission and reception integrated components and systems of the present invention adopt a large-bandwidth thin-film lithium niobate modulator chip. The upper limit of the bandwidth of the transceiver link is determined by the bandwidth of the thin-film lithium niobate modulator chip and the detector chip. The thin-film lithium niobate modulator chip used in the present invention has the characteristics of large bandwidth and low half-wave voltage, and its size is only 1 / 10 of the traditional lithium niobate modulator. Combined with the detector chip with a large response bandwidth, the RF optical transmission and reception integrated components and systems of the present invention can meet the needs of broadband transmission and reception and achieve broadbandization.

[0079] In addition to electro-optical and photoelectric conversion, the RF optical transmission and reception integrated component of the present invention also integrates a RF power amplifier chip and a RF low-noise amplifier chip. The cascade link can greatly improve the loss and noise of the optical link itself, achieving high transmission gain and low reception noise.

[0080] Although the present invention has been disclosed as above with preferred embodiments, the embodiments are not intended to limit the present invention. Any equivalent changes or modifications made without departing from the spirit and scope of the present invention also belong to the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the content defined by the claims of this application.

Claims

1. A radio frequency optical transmission and receiving integrated component, characterized in that: It includes a light source module, a radio frequency modulation module, two lens coupling modules, a single-core optical fiber array, a detector chip, a thermoelectric cooler and an electrical interconnection substrate; The light source module comprises a laser chip, a backlight detector and a thermistor; the laser chip is used to generate continuous wave laser; the backlight detector is used to monitor the optical power, and cooperates with the circuit outside the radio frequency optical transceiver integrated component to realize automatic power control of the laser chip; the thermistor is used to monitor the temperature of the laser chip, and cooperates with the thermoelectric cooler and the circuit outside the radio frequency optical transceiver integrated component to realize automatic temperature control; The radio frequency modulation module comprises a thin film lithium niobate modulator chip and a monitoring detector; the thin film lithium niobate modulator chip is used for electro-optical modulation of radio frequency signals, and the monitoring detector cooperates with the backlight detector and the circuit outside the radio frequency optical transmission and reception integrated component to realize automatic control of the modulator bias point; There are two lens coupling modules, each of which adopts a double-lens + optical isolator optical coupling structure, and is used for optical coupling between the laser chip and the thin-film lithium niobate modulator chip, and between the thin-film lithium niobate modulator chip and the single-core optical fiber array; The single-core optical fiber array comprises a first single-core optical fiber array and a second single-core optical fiber array, wherein the first single-core optical fiber array is used for coupling the thin-film lithium niobate modulator chip with the optical fiber, and the second single-core optical fiber array is used for coupling the detector chip with the optical fiber; The detector chip is used for converting the light-carrying radio frequency signal into a radio frequency signal; The thermoelectric cooler is arranged at the bottom of the entire radio frequency optical transmission and reception integrated component, and cooperates with the thermistor and the circuit outside the radio frequency optical transmission and reception integrated component to realize the precise temperature control of the light source module, the lens coupling module, the radio frequency modulation module, the single-core optical fiber array and the detector chip; The electrical interconnection substrate is used for leading out control pins and power pins on the laser chip, the thin-film lithium niobate modulator chip and the detector chip.

2. The radio frequency optical transmission and receiving integrated component according to claim 1, characterized in that: When receiving a radio frequency signal, the radio frequency signal received by the radio frequency optical transmission and reception integrated component enters the thin-film lithium niobate modulator chip, and the continuous wave laser generated by the laser chip is collimated and focused by a lens coupling module, and then coupled into the thin-film lithium niobate modulator chip, and the radio frequency signal is modulated into a light-carrying radio frequency signal, which is coupled into the first single-core optical fiber array through another lens coupling module and transmitted backward through the optical fiber; When transmitting a radio frequency signal, the light-carrying radio frequency signal is coupled into the detector chip by the second single-core optical fiber array, and is demodulated into a radio frequency signal and then transmitted forward.

3. The radio frequency optical transmission and receiving integrated component according to claim 1, characterized in that: It also includes RF transceiver enlarged module and tube shell; The radio frequency receiving and transmitting amplification module is used for switching between radio frequency signal reception and transmission, and radio frequency amplification; The tube shell provides a radio frequency interface, a low frequency interface, an optical interface for external connection, and an airtight packaging of the entire radio frequency optical transmission and reception integrated component.

4. The radio frequency optical transmission and receiving integrated component according to claim 3, characterized in that: The entire radio frequency optical transmission and reception integrated component is hermetically packaged by the tube shell.

5. The radio frequency optical transmission and receiving integrated component according to claim 3, characterized in that: The tube shell includes a radio frequency connector, a plurality of low frequency connectors and an optical fiber tail tube.

6. The radio frequency optical transmission and receiving integrated component according to claim 5, characterized in that: The RF transmission and reception module includes a RF power amplifier chip, a RF low noise amplifier chip, a RF switch chip and a RF substrate; The RF receiving link and RF transmitting link of the RF receiving and transmitting large module are respectively interconnected with the RF modulation module and the detector chip through gold wire jumpers for RF signal connection, and are welded and interconnected with the RF connector on the tube shell to achieve external RF connection; The RF substrate of the RF transceiver module is interconnected with the low-frequency connector of the tube shell through a gold wire jumper, and the low-frequency control wiring and power supply wiring on the electrical interconnection substrate are interconnected with the low-frequency connector of the tube shell through a gold wire jumper to realize the lead-out of the control and power supply pins; The pigtail of the single-core optical fiber array passes through the optical fiber pigtail tube on the tube shell.

7. The radio frequency optical transmission and receiving integrated component according to claim 6, characterized in that: The pigtail of the single-core optical fiber array is air-tightly welded to the optical fiber pigtail tube.

8. The radio frequency optical transmission and receiving integrated component according to claim 6, characterized in that: When receiving a radio frequency signal, the radio frequency signal enters the radio frequency optical transmission and reception integrated component from the radio frequency connector, passes through the radio frequency switch chip and the radio frequency low noise amplifier chip, and then enters the thin-film lithium niobate modulator chip. The continuous wave laser generated by the laser chip is collimated and focused by a lens coupling module, and then coupled into the thin-film lithium niobate modulator chip, modulating the radio frequency signal into a light-carrying radio frequency signal, which is coupled into the first single-core optical fiber array through another lens coupling module, and then transmitted backward through the optical fiber through the optical fiber tail tube; When transmitting RF signals, the light-carrying RF signals pass through the optical fiber through the optical fiber tail tube, are coupled into the detector chip by the second single-core optical fiber array, are demodulated into RF signals, pass through the RF power amplifier chip and the RF switch chip, and are transmitted through the RF connector.

9. A radio frequency optical transmission and receiving integrated component system, characterized in that: It comprises the radio frequency optical transmission and reception integrated component according to any one of claims 1 to 8.

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