| 摘要 |
An improved fiber optic delay line filter is disclosed having each fiber optic l ight path terminate on a corresponding photodetector adapted to convert the received optic al signal to a commensurate electrical signal in bi-polar proportion to an electrical bias level provided to the photodetector where the bias level for each photodetector is independently settable and the outputs of all of the photodetectors are summed t o produce an output electrical signal that is filtered by the arranged fiber optic delay l ine transversal filter.
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