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Photoelectric oscillation loop based onboard microwave photon transponder

A technology of microwave photon and photoelectric oscillation, which is applied in the field of satellite communication, can solve problems such as increased volume and mass, inability to meet the special environmental requirements on the satellite, and complex systems, so as to reduce mass and volume, enhance temperature stability and resist Electromagnetic interference capability, the effect of solving bandwidth limitations

Pending Publication Date: 2017-06-20
PLA UNIV OF SCI & TECH
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Problems solved by technology

[0005] Technical problem: Most of the existing solutions adopt the separate design of the optical generation of the microwave local oscillator signal and the optical fiber transmission, and use an independent system to realize the above functions, resulting in complex systems, increased volume and quality, and cannot meet the special environmental requirements on the star. Problem, the present invention provides a microwave photon transponder based on the photoelectric oscillation loop

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  • Photoelectric oscillation loop based onboard microwave photon transponder

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Embodiment Construction

[0021] The structure, implementation method and technical performance of the present invention will be described in detail in conjunction with the accompanying drawings.

[0022] Such as figure 1 Shown: a kind of on-board microwave photon transponder based on the photoelectric oscillation loop of the present invention includes a microwave local oscillator source and multiple outputs, and the microwave local oscillator source includes: a light source 1, an electro-optical modulator 2, and an erbium-doped fiber amplifier 3 , electric filter 4, the first electric amplifier 5, the first photodetector 6, the first optical splitter 7, the second optical splitter 8, the Nth optical splitter 9 components; the multi-channel output includes: light Filter 10, second photodetector 11, second electric amplifier 12 components; Wherein,

[0023] Light source 1 adopts DTS-DFB laser with a wavelength of 1551.6nm;

[0024] The electro-optic modulator 2 adopts Sumitomo Lithium Niobate Fiber Mo...

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Abstract

The invention provides a photoelectric oscillation loop based onboard microwave photon transponder, which is characterized in that optical generation, distribution and processing of high-performance microwave local oscillation signals are combined in design, advantages of a microwave technology and optical fiber communication are given into full play, bandwidth limitations of frequency conversion of high-band communication signals are solved, the complexity of the system is reduced, the mass and the volume of the system are reduced, the temperature stability and the electromagnetic interference resisting capacity of the system are enhanced, and the transponding efficiency is improved. The microwave photon transponder comprises a microwave local oscillation source and multi-channel output. The microwave local oscillation source is composed of a photoelectric oscillation loop, wherein the photoelectric oscillation loop leads photonic signals to a multi-channel output port through multiple optical fibers, signal processing is realized by means of photonic processing at the multi-channel output end, photoelectric conversion is performed, and multi-channel transponding is realized.

Description

technical field [0001] The invention relates to the field of satellite communication, in particular to an on-board microwave photon transponder based on a photoelectric oscillation loop. The transponder realizes the generation, transmission and frequency conversion of microwave signals on the star through photonic means, and directly transmits microwave signals of different frequency bands, different bandwidths, and different formats on optical fiber links transparently and broadband, and at the same time completes frequency band conversion (also known as Photon frequency conversion), using photon frequency conversion to solve the bandwidth limitation of frequency conversion of high-frequency communication signals, effectively reduce the quality and volume of on-board payloads, and improve the anti-interference ability of satellites. Background technique [0002] At present, the satellite information system requires long-distance transmission of high-frequency microwave sign...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/50H04B10/2575H04B10/118
CPCH04B10/118H04B10/2575H04B10/50
Inventor 张宝富邹广健李诚鑫滕义超
Owner PLA UNIV OF SCI & TECH
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