Method and apparatus for optical signal processing by photo-induced loss and/or gain gratings
US6078597A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 19, 1996 |
| Grant date | Jun 20, 2000 |
| Priority date | — |
| Expiry date | Nov 19, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S2301/04
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method and apparatus for inducing a loss or gain grating in a saturable medium, and the application of this induced grating to provide optical signal processing functions to a lightwave communications signal. The method and apparatus provides self-tuning noise filtering and self-adjusting channel equalization of lightwave communication signals using a single-mode guided wave structure including a saturable medium, the medium having a first and second end, a reflector at the first end of the medium, and an input/output port at the second end of the medium such that light entering the input port interferes with light reflected off said reflector to create an interference induced grating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.