| 摘要 |
An optical transmission system utilizing a nonlinear fiber demultiplexer. A time division multiplexed optical signal is transmitted via a first optical signal pa th. An optical pump pulse is transmitted via a second optical signal path. The optical pump pulses are synchronized to correspond to the pulses in the multiplexed optical s ignal for which extraction is desired. The first and second optical signal paths are coupl ed such that the portions of the multiplexed signals which are synchronized with the opt ical pump pulses are amplified through Raman gain. The resulting signal is detected and pa ssed through a threshold detector which filters out pulses below an intensity thresho ld. The desired demultiplexed signal, which was amplified by the pump pulses, passes thr ough the optical threshold detector as an electronic pulse.
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