Gain equalizing apparatus

Details Gain equalizing apparatus Gain equalizing apparatus

1997-12-09

2000-07-18

Hellner, Mark

Optical: systems and elements

Optical amplifier

Optical fiber

359124, 359349, H01S 300

Patent

active

060915382

ABSTRACT:
An equalizing apparatus for equalizing gains of wideband wavelength-division multiplexed light and for improving the S/N ratio comprises a plurality of optical amplifyer for optically amplifying light in different wavelength groups, respectively; and multiplexer for multiplexing optically amplified light from said plurality of optically amplifying means.

REFERENCES:
patent: 5392154 (1995-02-01), Chang et al.
patent: 5452116 (1995-09-01), Kirkby et al.
patent: 5675432 (1997-10-01), Kosaka
patent: 5801858 (1998-09-01), Roberts et al.
patent: 5905838 (1999-05-01), Judy et al.
Yamada et al, "Broadband and Gain-Flattened Amplifier Composed of a 1.55 .mu.M-Band and a 1.58 .mu.M-Band Er.sup.3- -Doped Fibre Amplifier in a Parallel Configuration" Electronic Letters, pp. 710 and 711, Apr. 1997.

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