Optical: systems and elements – Optical amplifier – Correction of deleterious effects
Reexamination Certificate
2006-01-31
2006-01-31
Hellner, Mark (Department: 3663)
Optical: systems and elements
Optical amplifier
Correction of deleterious effects
Reexamination Certificate
active
06992816
ABSTRACT:
The present invention provides an apparatus and method for compensating for the variation of a gain spectrum attributable to the temperature variation of a fiber amplifier, and a long-wavelength band dispersion-compensating hybrid amplifier equipped with the gain spectrum compensating apparatus. The apparatus includes a DCF located between a first amplification stage and a second amplification stage to compensate for dispersion of an optical signal output from the first amplification stage and perform Raman amplification of the optical signal using input pumping light; at least one pumping light provision means for providing forward or backward pumping light to the DCF; first and second temperature detection means for detecting temperature variations of the first and second amplification stages, respectively; and control means for controlling intensity of the pumping light of the pumping light provision means according to the detected temperature variations.
REFERENCES:
patent: 6178038 (2001-01-01), Taylor et al.
patent: 6335821 (2002-01-01), Suzuki et al.
patent: 6411430 (2002-06-01), Ogino et al.
patent: 6888670 (2005-05-01), Oh et al.
patent: 2004103599 (2004-04-01), None
J. Nakagawa, et al.; 1580-nm Band Erbium-Doped Fiber Amplifier-Employing Novel Temperature Compensation Technique, Information Technology R&D Center, Mitsubishi Electric Corporation, Kamakura, Japan, 108-110.
Chang Sun Hyok
Chu Moo Jung
Chung Hee Sang
Lee Dong Han
Lee Han Hyub
Blakely & Sokoloff, Taylor & Zafman
Electronics & Telecommunications Research Institute
Hellner Mark
LandOfFree
Apparatus and method for gain-spectrum-tilt compensation in... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for gain-spectrum-tilt compensation in..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for gain-spectrum-tilt compensation in... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3591766