Optical: systems and elements – Optical amplifier – Optical fiber
Reexamination Certificate
2006-06-27
2006-06-27
Keith, Jack (Department: 3663)
Optical: systems and elements
Optical amplifier
Optical fiber
C359S337400
Reexamination Certificate
active
07068422
ABSTRACT:
Provided are an optical fiber amplification method and apparatus for controlling a gain. Initial values including target gains of first and second amplifications for an optical amplifier amplifying the input light signal are set. Power of the input light signal is measured and the power of first and second backward pump lights proceeding in the opposite direction to the input light signal is controlled based on the measured power. The input light signal is firstly amplified and a first amplification gain of the amplified light signal is calculated. Power of a first forward pump light proceeding in the same direction as the input light signal is controlled so that the first amplification gain can be substantially equal to the target gain of the first amplification. The firstly amplified light signal is secondly amplified and a second amplification gain with respect to the input light signal is calculated. The power of a second forward pump light proceeding in the same direction as the input light signal is controlled so that the second amplification gain can be substantially equal to the target gain of the second amplification.
REFERENCES:
patent: 5900968 (1999-05-01), Srivastava et al.
patent: 5991068 (1999-11-01), Massicott et al.
patent: 6049413 (2000-04-01), Taylor et al.
patent: 6055092 (2000-04-01), Sugaya et al.
patent: 6175436 (2001-01-01), Jackel
patent: 6215584 (2001-04-01), Yang et al.
patent: 6246514 (2001-06-01), Bonnedal et al.
patent: 6359727 (2002-03-01), Nakazato
patent: 6373625 (2002-04-01), Kobayashi et al.
patent: 6577789 (2003-06-01), Wang
patent: 6690506 (2004-02-01), Zahnley et al.
patent: 6721089 (2004-04-01), Miller et al.
patent: 6977770 (2005-12-01), Komaki et al.
patent: 2002/0186460 (2002-12-01), Lelic
patent: 07-202306 (1995-08-01), None
patent: 2000-9215 (2000-02-01), None
Chu Moo-jung
Lee Hyun-jae
Lee Jyung-chan
Myong Seung-il
Blakely & Sokoloff, Taylor & Zafman
Bolda Eric
Electronics and Telecommunications Research Institute
Keith Jack
LandOfFree
Optical fiber amplification method and apparatus for... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Optical fiber amplification method and apparatus for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical fiber amplification method and apparatus for... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3709395