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An Electrical/Optical Frequency Hopping Carrier Generator Based on Photonic Technology

A carrier generation and technology technology, applied in the direction of electromagnetic transmitters, electromagnetic wave transmission systems, electrical components, etc., can solve the problems of signal modulation rate, frequency hopping rate, working bandwidth limitation, inability to flexibly tune, stability easily affected by the environment, etc.

Active Publication Date: 2022-07-01
AIR FORCE UNIV PLA
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Problems solved by technology

[0004] The above schemes all have certain limitations: the two frequencies of the frequency hopping carrier obtained by scheme (1) have a fixed double frequency relationship, which cannot be tuned flexibly; the signal modulation rate, hopping Frequency rate, working bandwidth, etc. are limited by directly modulated lasers or tunable filters, and the stability is easily affected by the environment

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  • An Electrical/Optical Frequency Hopping Carrier Generator Based on Photonic Technology
  • An Electrical/Optical Frequency Hopping Carrier Generator Based on Photonic Technology
  • An Electrical/Optical Frequency Hopping Carrier Generator Based on Photonic Technology

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Embodiment Construction

[0033] The present invention will be further described below in conjunction with the accompanying drawings:

[0034] An electrical / optical frequency hopping carrier generator based on photonic technology, such as figure 1 shown, including a laser source 1, a first polarization controller 2 a , polarization modulator 3, digital control signal 4, second polarization controller 2 b , optical circulator 5, polarization beam splitter 6, third polarization controller 2 c , the first Mach-Zehnder modulator 7 a , the second Mach-Zehnder modulator 7 b , microwave modulation signal 8 a , microwave modulation signal 8 b , analyzer 9, and photodetector 10. 5-1 and 5-2 are the first and second output ports of the optical circulator 5, respectively, and 6-1 and 6-2 are the first and second output ports of the polarization beam splitter 6, respectively. and the second output port. The output end of the laser source 1 and the first polarization controller 2 a input connection. first ...

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Abstract

Provide an electrical / optical frequency hopping carrier generator based on photonic technology, including a laser source, a first polarization controller, a polarization modulator, a digital control signal, a second polarization controller, an optical circulator, a polarization beam splitter, a first polarization Three polarization controllers, first Mach-Zehnder modulator, second Mach-Zehnder modulator, microwave modulation signal, microwave modulation signal, analyzer, photodetector. The polarization switch structure is used to control the polarization state of the optical signal; the Sagnac ring structure is used to modulate the optical signal of different polarization states differently; finally, by adjusting the digital control signal of the polarization switch structure, the electrical / optical jump can be obtained In addition, by adjusting the frequency of the microwave modulation signal of the Mach-Zehnder modulator, the frequency of the electrical / optical frequency-hopping carrier can be flexibly tuned. The method of the invention has flexible control and simple structure, and can be applied to important fields such as radar, electronic warfare, wireless communication system and the like.

Description

technical field [0001] The invention belongs to the technical field of microwave photonics and microwave signal generation, in particular to an electrical / optical frequency hopping carrier generator based on photonic technology. Background technique [0002] Microwave frequency hopping signals are widely used in wireless communication, radar detection, electronic warfare and other application scenarios. However, due to the existence of electronic bottlenecks, the frequency hopping bandwidth (~100 MHz) and operating frequency band (~GHz) generated by traditional electrical methods are limited. To achieve high-frequency broadband microwave frequency hopping signal generation, multi-stage frequency doubling and frequency conversion are required. , which greatly increases the volume, weight, power consumption, cost of the whole system and brings about the deterioration of signal quality. In addition, the frequency hopping rate is relatively slow (on the order of kHz), and even ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/50
CPCH04B10/50H04B10/503
Inventor 王国栋赵尚弘李轩朱子行高从芮黄蓝锋李赫孟晴晴周逸潇
Owner AIR FORCE UNIV PLA
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