| 摘要 |
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.
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