Optical amplifier

Details Optical amplifier Optical amplifier

2007-05-08

2007-05-08

Hughes, Deandra (Department: 3663)

Optical: systems and elements

Optical amplifier

Optical fiber

C359S337500, C398S010000, C398S011000, C398S013000, C398S017000, C398S018000, C398S020000, C398S038000

Reexamination Certificate

active

11396551

ABSTRACT:
Optical amplifier which can eliminate the need for an optical detection section before an external attenuating medium, can prevent SN degradation, and can reduce power required for pumping light. An attenuation amount detection section detects an amount of signal light attenuation caused by a variable optical attenuator and the external attenuating medium connected in series, by means of a front optical detection section provided before the variable optical attenuator and the external attenuating medium and a back optical detection section provided thereafter. An attenuation amount control section controls the variable optical attenuator such that the amount of signal light attenuation detected by the attenuation amount detection section is kept constant. A connection detection section detects a connection or disconnection of the external attenuating medium in accordance with the amount of signal light attenuation obtained when the amount of attenuation caused by the variable optical attenuator is minimized.

REFERENCES:
patent: 6411429 (2002-06-01), Tomofuji et al.
patent: 6433925 (2002-08-01), Sakano et al.
patent: 6441955 (2002-08-01), Takatsu et al.
patent: 6496300 (2002-12-01), Kinoshita et al.
patent: 6532103 (2003-03-01), Sakano et al.
patent: 6919987 (2005-07-01), Takatsu et al.
patent: 7002735 (2006-02-01), Kobayashi et al.
patent: 2002/0027703 (2002-03-01), Kinoshita et al.
patent: 2002/0051284 (2002-05-01), Takatsu et al.
patent: 2003/0035171 (2003-02-01), Touma
patent: 2003/0099432 (2003-05-01), Furuki et al.
patent: 2003/0099475 (2003-05-01), Nemoto et al.
patent: 2004/0100688 (2004-05-01), Iizuka et al.
Patent Abstracts of Japan, Publication No. 10-051057, Published Feb. 20, 1998.
Patent Abstracts of Japan, Publication No. 2002-368698, Published Dec. 20, 2002.

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