Optical signal active tracking using tunable FBG
US6696682B1 · kind B1 · utility
1Cited by
4References
14Claims
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Key dates
| Filing date | Mar 13, 2001 |
| Grant date | Feb 24, 2004 |
| Priority date | — |
| Expiry date | Sep 7, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/022
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method and apparatus for processing an optical signal in an optical waveguide using a closed loop wavelength dependent active tuning system. A tunable fiber Bragg grating, optical processor and a controller provide feedback control of the central wavelength of the tunable fiber Bragg grating. Changes in wavelength of the processed signal are followed to keep the tunable fiber Bragg grating tuned to a peak wavelength for maximum sensitivity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.