Optical demultiplexing system with optical amplifiers

Details Optical demultiplexing system with optical amplifiers Optical demultiplexing system with optical amplifiers

1994-03-04

1995-06-06

Bovernick, Rodney B.

Optical waveguides

With optical coupler

Plural

385 31, 385 22, G02B 628

Patent

active

054229685

ABSTRACT:
In an optical demultiplexing system comprising a plurality of optical demultiplexers for separating the component optical signals respectively having predetermined wavelengths of an input wavelength-multiplexed optical signal, a first optical amplifier is connected to the input of the optical demultiplexer disposed at the input end of the optical demultiplexing system, and a plurality of optical amplifiers are disposed to amplify the output optical signal of the first optical amplifier before the S/N ratio of the optical signal is caused to fall by optical losses caused within the optical demultiplexing system below a predetermined S/N ratio guaranteeing a predetermined bit error rate.

REFERENCES:
patent: 4923271 (1990-05-01), Henry et al.
patent: 5035481 (1991-07-01), Mollenauer
patent: 5074634 (1991-12-01), Takahashi
Electronics Letters, Sep. 15, 1988, vol. 24, No. 19, pp. 1215-1217.

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