Optical receiver, a tuner, and an optical network

Details Optical receiver, a tuner, and an optical network Optical receiver, a tuner, and an optical network

1996-04-16

1999-08-03

Negash, Kinfe-Michael

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

250214A, 330 59, H04B 1006

Patent

active

059332646

ABSTRACT:
Known is an optical receiver (4) in which first a received broadband optical signal is converted to a broadband electric signal by means of a optoelectric converter (49) comprising a transimpedance amplifier, and thereafter a channel is selected from the converted broadband signal by means of a tuner which is coupled to the transimpedance amplifier. Such a configuration is not optimal in fulfilling noise and bandwidth requirements. An optical receiver (4) for subcarrier multiplexed optical signals is proposed which has a tunable frequency selective front-end section (30) that is directly coupled to a photodiode (49) as an optoelectric converter so as to selectively pass a tuned channel from the received subcarrier multiplexed optical signal to a succeeding amplifier (36; 61).

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