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Multi-frequency high-precision microwave photon frequency measurement scheme based on stimulated Brillouin effect

A technology of stimulated Brillouin and microwave photons, applied in the direction of frequency measurement devices, etc., can solve problems such as high cost

Active Publication Date: 2017-10-24
SOUTHWEST JIAOTONG UNIV
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Problems solved by technology

Therefore, a microwave photon signal frequency measurement technology based on the stimulated Brillouin effect was proposed. This scheme realizes the measurement of multi-frequency signals, but the frequency of the unknown microwave signal must be obtained by analyzing the microwave transfer function of the entire system at high cost. value

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  • Multi-frequency high-precision microwave photon frequency measurement scheme based on stimulated Brillouin effect
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  • Multi-frequency high-precision microwave photon frequency measurement scheme based on stimulated Brillouin effect

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings.

[0023] Such as figure 1 As shown, the present invention consists of a single-wavelength laser (101), a dual-drive Mach-Zehnder modulator (102), a Mach-Zehnder modulator (103), an optical isolator (105), a dispersion-shifted optical fiber (106), and an optical ring It is composed of a device (107), a photodetector (108), an electrical processing unit (109), and a reference microwave source (104). The unknown detection signal (110) is loaded on the Mach-Zehnder modulator (103) to generate the double sideband of the suppressed carrier, as the pump light of the stimulated Brillouin effect; under the action of the signal light and the pump light, the stimulated Brillouin Abyss effects are generated in the dispersion-shifted fiber (106). By adjusting the wavelength positions of the dual-drive Mach-Zehnder modulator (102), the reference microwave source (104) and the pumpin...

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Abstract

The invention discloses a multi-frequency high-precision microwave photon frequency measurement scheme based on the stimulated Brillouin effect. It includes a single-wavelength laser (101), a dual-drive Mach-Zehnder modulator (102), a Mach-Zehnder modulator (103), an optical isolator (105), a dispersion-shifted fiber (106), an optical circulator (107), A photodetector (108), an electrical processing unit (109), and a reference microwave source (104). Compared with other microwave photon frequency measurement schemes, this scheme uses the two mapping relationships in the Brillouin effect: dynamic frequency-power mapping and frequency-phase mapping, by combining instantaneous measurement of multiple frequencies with single-frequency error measurement , realizing multi-frequency high-precision microwave photon frequency measurement. It can be applied to the fields of electronic countermeasures and microwave detection.

Description

technical field [0001] The invention relates to the technical field of microwave detection, in particular to a multi-frequency high-precision frequency measurement based on the stimulated Brillouin effect. It is suitable for accurate measurement of unknown microwave signals with high frequency and multiple frequencies. Background technique [0002] In the field of modern electronic countermeasures and microwave detection, microwave frequency detection technology is a key technology. Through instantaneous frequency measurement, the frequency band of unknown signals can be quickly located, thereby assisting in identifying the information of enemy electronic equipment, which is beneficial to our strategic deployment. Due to the limitations of the electronic bottleneck, traditional electronic frequency measurement is difficult to achieve wide frequency measurement, and has the disadvantages of large size, high power consumption, and susceptibility to electromagnetic interference...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R23/02
Inventor 闫连山姜恒云叶佳陈智宇潘炜罗斌邹喜华
Owner SOUTHWEST JIAOTONG UNIV
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