Dying oscillation absorption spectrum detecting and sensing device for all optical fiber cavity
A technology of absorption spectroscopy and sensing devices, which is applied in absorption/scintillation/reflection spectroscopy, color/spectral characteristic measurement, spectrum investigation, etc., can solve the problems of low coupling efficiency, improvement of measurement sensitivity of fiber optic cavity ring-down sensing devices, and measurement sensitivity Advanced problems, to achieve the effect of low cost, wide spectral measurement range and high measurement sensitivity
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0029] like figure 1 As shown, the all-fiber cavity ring-down absorption spectrum detection sensor device is composed of a light source 1 and its first driver 11, a fiber resonant cavity, a photodetector 5 and a signal acquisition and processing system 6 connected in sequence.
[0030] Described fiber resonant cavity is formed by the first fiber optic loop mirror 2 being connected with the second fiber optic loop mirror 3 through optical fiber 4; Described first fiber optic loop mirror 2 is formed by the third port 213 on the same side of the first fiber coupler 21 and The fourth port 214 is connected to the first fiber loop 22; the second fiber loop mirror 3 is connected to the second fiber loop 32 by the third port 313 and the fourth port 314 on the same side of the second fiber coupler 31 Composition; the output end of the light source 1 is connected to the first port 211 of the first fiber coupler 21, and the second port 212 of the first fiber coupler 21 is connected to on...
Embodiment 2
[0034] like figure 2 As shown, the all-fiber cavity ring-down absorption spectrum detection and sensing device of the present invention, the fiber resonator is connected to the first port 311 of the second fiber coupler 31 by the second port 712 of a ring mirror switch 7 through the optical fiber 4 Composition, the second fiber loop mirror 3 is formed by connecting the third port 313 and the fourth port 314 on the same side of the second fiber coupler 31 with the second fiber loop 32; the output end of the light source 1 is connected to the The first port 711 of the ring mirror switch 7 is connected; the second port 712 of the ring mirror switch 7 is connected to one end of the optical fiber 4; the other end of the optical fiber 4 is connected to the first port 311 of the second fiber coupler 31, the The second port 312 of the second optical fiber coupler 31 is connected to the signal acquisition and processing system 6 via the photodetector 5 . The composition of the ring m...
Embodiment 3
[0040] image 3 Embodiment 3 of the present invention: a schematic diagram of an optical fiber cavity ring-down sensing device that uses a nonlinear optical fiber loop mirror composed of a semiconductor optical amplifier to realize high-speed switching between high reflection and high transmission characteristics;
[0041] Among the figure: 74 is a semiconductor optical amplifier, and 741 is its second driving power supply. The semiconductor optical amplifier 74 not only has the function of light amplification, but also changes the effective refractive index due to optical nonlinear effects under different incident light intensities. 742 is a control laser. The pulsed laser signal it sends is injected into the third fiber loop 72 through the third fiber coupler 743. 744 is the third driving power for controlling the pulse operation of the laser 742, and its pulse frequency and phase are synchronized with the signal light source 1 and can be adjusted.
[0042] The working pri...
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