Wide-spectrum light source for fiber-optic gyroscope and manufacturing method thereof
A wide-spectrum light source and fiber optic gyroscope technology, which is applied in the field of wide-spectrum light source for fiber optic gyroscopes and its production, can solve the problems of low output power, poor spatial coherence, and poor wavelength stability of SLD, and achieve miniaturization, low cost, and light source The effect of spectral width
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0059] Example 1
[0060] This embodiment specifically describes the implementation of the L-band light source of the present invention. The structure diagram is as figure 2 Shown. The 980nm pump laser output by the first pump laser is input through the 980nm first port of the first wavelength division multiplexer, and output from the third port (980nm+1550nm) of the first wavelength division multiplexer and then passes through the broadband reflector , Enter the second port (1550nm) of the first wavelength division multiplexer, generate from the erbium-doped fiber 4 I 13 / 2 Energy level to ground state ( 4 I 15 / 2 ) The transition of the energy level, as the length of the first erbium-doped fiber gradually increases, the generated fluorescence produces a secondary pumping and transitions to 4 I 13 / 2 Energy level, under the effect of the Stark effect, the fluorescence wavelength of the second transition shifts to the long wavelength direction, resulting in L-band fluorescence....
Example Embodiment
[0061] Example 2
[0062] This embodiment specifically describes the implementation of the L+C band light source of the present invention. The structure diagram is as image 3 Shown. The C-band light source adopts the double-pass backward method. The 980nm pump laser output by the second pump laser is input through the first port (980nm) of the second wavelength division multiplexer, and from the third wavelength division multiplexer. After the output of the port (980nm+1550nm), fluorescence is generated through the second erbium-doped fiber. A fiber reflector is connected behind the second erbium-doped fiber. The unpumped 980nm light returns to the second erbium-doped fiber through the reflector and is pumped again. Improve the pumping efficiency, and the generated 1550nm fluorescence is output through the second port (1550nm) of the second wavelength division multiplexer to form a C-band spectrum. Because the gain coefficient and absorption coefficient of erbium-doped fiber ne...
PUM
Property | Measurement | Unit |
---|---|---|
Light intensity | aaaaa | aaaaa |
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.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap