Phase-shifting fiber Bragg grating strain sensing system based on photoelectric oscillator
A technology of fiber optic Bragg and photoelectric oscillator, which is applied in the direction of instruments, optical devices, and measuring devices, can solve the problems of reducing the measurement range, achieve the effect of improving the demodulation signal-to-noise ratio, high resolution, and overcoming mutual constraints
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment Construction
[0026] see figure 1 As shown, the present invention provides a kind of phase-shift fiber Bragg grating strain sensing system based on photoelectric oscillator, comprising:
[0027] A wavelength tunable laser 1, the wavelength tunable laser 1 has a single longitudinal mode output, and the wavelength tunable laser 1 is an external cavity laser, a sampling grating semiconductor laser or a fiber laser;
[0028] A polarization controller 2, the input end of the polarization controller 2 is connected to the output end of the wavelength tunable laser 1, and is used to adjust the polarization state of the output light of the wavelength tunable laser, and reduce the polarization-dependent loss in the transmission process of light;
[0029] A phase modulator 3, the optical input end of the phase modulator 3 is connected to the output end of the polarization controller 2, and is used for phase modulation of the input optical signal;
[0030] An optical circulator 4, the a end of the cir...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com