Optical amplifier and optical amplifier control method

Details Optical amplifier and optical amplifier control method Optical amplifier and optical amplifier control method

2007-04-10

2007-04-10

Keith, Jack (Department: 3663)

Optical: systems and elements

Optical amplifier

Optical fiber

C359S341420

Reexamination Certificate

active

10716361

ABSTRACT:
An optical amplifier includes first and second optical amplifier units, a variable optical attenuator optically coupled between the first and second optical amplifier units, a first control unit to control gains of the first and second optical amplifier units based on an input of the first optical amplifier unit and an output of the second optical amplifier unit, and a second control unit to control an attenuation quantity of the variable optical attenuator based on the input and an output of the first optical amplifier unit and an input and the output of the second optical amplifier unit.

REFERENCES:
patent: 5805322 (1998-09-01), Tomofuji
patent: 5889609 (1999-03-01), Fukushima
patent: 5966237 (1999-10-01), Sugaya et al.
patent: 5986799 (1999-11-01), Itou et al.
patent: 6055092 (2000-04-01), Sugaya et al.
patent: 6061171 (2000-05-01), Taylor et al.
patent: 6288874 (2001-09-01), Ito
patent: 6359726 (2002-03-01), Onaka et al.
patent: 6369938 (2002-04-01), Sugaya et al.
patent: 6411430 (2002-06-01), Ogino et al.
patent: 6421169 (2002-07-01), Bonnedal et al.
patent: 6483632 (2002-11-01), Jolley et al.
patent: 6560008 (2003-05-01), Wada
patent: 6603596 (2003-08-01), Inagaki et al.
patent: 6687045 (2004-02-01), Lelic
patent: 6690506 (2004-02-01), Zahnley et al.
patent: 6768578 (2004-07-01), Kinoshita et al.
patent: 6922282 (2005-07-01), Onaka et al.
patent: 2001/0017729 (2001-08-01), Sugaya et al.
patent: 2001/0026395 (2001-10-01), Sugaya et al.
patent: 2002/0044343 (2002-04-01), Manzur
patent: 2002/0067538 (2002-06-01), Sugaya et al.
patent: 2002/0171917 (2002-11-01), Lelic et al.
patent: 2003/0035203 (2003-02-01), Shlifer et al.
patent: 2003/0231379 (2003-12-01), Komaki et al.
patent: 2004/0027651 (2004-02-01), Balland et al.
patent: 2004/0085625 (2004-05-01), Motoshima et al.
patent: 2004/0100688 (2004-05-01), Iizuka et al.
patent: 2004/0114215 (2004-06-01), Tian et al.
patent: 0 944 190 (1999-09-01), None
patent: 1 376 904 (2004-01-01), None
patent: 5-244098 (1993-09-01), None
patent: 9-214034 (1997-08-01), None
patent: 11-122192 (1999-04-01), None
H. Suzuki et al. Dynamic Gain Control by Maximum Signal Power Channel in Optical Linear Repeaters for WDM Photonic Transport Networks. IEEE Photonics Technology Letters, IEE Inc. New York, U.S. vol. 10, No. 5, May 1, 1998, pp. 734-736.
S. Y. Park et al. A gain-flattened two-stage EDFA for WDM optical networks with a fast link control channel. Optics Communications, vol. 153, No. 1-3, Jul. 15, 1998 pp. 23-26.
European Search Report dated Mar. 10, 2005.

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