Optical: systems and elements – Optical amplifier – Optical fiber
Patent
1994-03-30
1995-02-21
Hellner, Mark
Optical: systems and elements
Optical amplifier
Optical fiber
359349, 359124, H01S 316
Patent
active
053921542
ABSTRACT:
In a multiwavelength lightwave communications system automatic self-power regulation on a channel-by-channel basis is achieved with a cascade of multiwavelength amplifier modules (200), wherein each multiwavelength amplifier module in the cascade includes a plurality of pump-shared parallel fiber amplifiers (208) operated in gain-saturation and connected between an optical demultiplexer (203) and multiplexer (209). An optional first gain stage (202) improves performance with higher optical signal-to-noise ratio. By self-regulating the power in each channel, the communications system is scalable, allowing the system to grow without deleterious effects due to power spread.
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Chang Gee-Kung
Eskildsen Lars E.
Goldstein Evan L.
Iqbal Muhammed Z.
Lin Chinlon
Bell Communications Research Inc.
Gurey Stephen M.
Hellner Mark
Suchyta Leonard Charles
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