Fiber grating spectrum real-time monitoring and testing system
The real-time monitoring system for fiber Bragg grating spectra, composed of a broadband light source and a Bragg grating, solves the problems of high cost and inaccurate detection, and realizes real-time monitoring of fiber Bragg grating spectra while reducing costs.
CN223650141UActive Publication Date: 2025-12-09SUZHOU GULAI OPTICAL TECH CO LTD
Patent Information
- Application Number
- CN202423280949.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-30
AI Technical Summary
Technical Problem
Existing fiber Bragg grating reflectivity measurement equipment is expensive and fails to effectively monitor the effects of light source intensity fluctuations, leading to inaccurate detection.
Method used
A real-time fiber optic grating spectrum monitoring system, consisting of a broadband light source, a beam splitter, a circulator, and multiple Bragg gratings, monitors reflectivity and spectral drift through multiple detectors, reducing equipment costs and improving detection accuracy.
Benefits of technology
Real-time monitoring of fiber Bragg grating spectra was achieved, ensuring the accuracy of detection while significantly reducing the cost of the testing system.
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Smart Images
Figure CN223650141U_ABST
Abstract
The utility model discloses a fiber grating spectrum real-time monitoring and testing system. The system comprises a broadband light source; a device under test; the loss monitoring system comprises an optical splitter and a first detector; a broadband spectrum output by the broadband light source is coupled and input to the detected device through the optical splitter, and the spectrum penetrating through the detected device is emitted to the first detector; the fiber bragg grating reflectivity monitoring system comprises a first circulator, a first fiber bragg grating and a second detector. Wherein the tested device is suitable for reflecting the wavelength meeting the Bragg condition, and the reflection spectrum of the tested device is transmitted to the first fiber Bragg grating through the first circulator; wherein the first fiber bragg grating is suitable for reflecting the wavelength meeting the Bragg condition, and the reflection spectrum of the first fiber bragg grating is transmitted to the second detector through the first circulator. According to the utility model, optical fiber performance detection of fiber grating manufacturing is ensured, product defects are reduced, and manufacturing cost is reduced.
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Citation Information
Patent Citations
Method for accurately measuring reflectivity of fiber Bragg grating
CN102829958A
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Fiber grating-based spectrum detecting device
CN109540293A