Optical power detection device and method based on quasi-optical cavity microwave resonance principle

A technology of optical power detection and microwave resonance, applied in the direction of using electric radiation detectors for photometry, etc., can solve the problems of limited use conditions and application range, small detection amplitude range, etc., to improve response sensitivity and test accuracy, change The effect of small scope and simple design and processing

Active Publication Date: 2019-06-25
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology

[0005] To sum up, the detection amplitude range of traditional optical power detection technology is small, and technology and cost limit its use conditions and application range

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  • Optical power detection device and method based on quasi-optical cavity microwave resonance principle
  • Optical power detection device and method based on quasi-optical cavity microwave resonance principle
  • Optical power detection device and method based on quasi-optical cavity microwave resonance principle

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Embodiment Construction

[0034] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0035] This embodiment provides an optical power detection device and method based on the principle of quasi-optical cavity microwave resonance, which uses photosensitive materials to have different response characteristics under different optical radiation powers, and uses quasi-optical resonance with concentrated field strength and high quality factor The cavity detects the response characteristics of the microwave performance of the micro-sheet photosensitive material, converts the light irradiation power signal into a microwave signal, and realizes wide-range detection of optical power.

[0036] In this embodiment, the structure of the optical power detection device based on the principle of quasi-optical cavity microwave resonance is as follows figure 1 , figure 2 As shown, comprising: vector network analyzer 1, quasi-optical resonant c...

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Abstract

The present invention belongs to the field of optical power detection, and provides an optical power detection device and method based on a quasi-optical cavity microwave resonance principle. The problems are solved that a traditional optical power detection technology is small in detection amplitude range and the use condition and the application range of the technology are limited by the technology and the cost. The optical power detection device employs a quasi-optical cavity microwave resonance cavity with concentrated field intensity and the high quality factor as an optical power signalsensor device to convert the optical power signals to be measured which are difficult to detect and wide in wide range to microwave signals with a small range and easy observation, and the microwave device detection technology is employed to achieve wide-range and high-precision detection of the optical signals; and moreover, the device is fast in response speed, high in sensitivity, high in testprecision, low in material cost and simple in design processing.

Description

technical field [0001] The invention belongs to the field of optical power detection, and specifically provides an optical power detection device and method based on the principle of quasi-optical cavity microwave resonance. Background technique [0002] With the rapid development of optical fiber network technology and optical communication technology, the requirements for optical power detection are getting higher and higher. Changes in optical power can easily lead to communication and network failures. In the field of optical communication, in order to ensure the continuity, stability and safety of the work between devices, all optical devices are usually tested. [0003] The current optical power detection method is mainly based on AD conversion, and the voltage signal of the measured photosensitive device (APD (avalanche photo detector, avalanche photodiode or PIN tube) under the light irradiation signal is amplified and sampled by the amplifier to realize the Detecti...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J1/42
Inventor 李亚峰余承勇高冲龙嘉威高勇张云鹏李恩郭高凤
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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