Optical communications – Transmitter and receiver system – Including compensation
Reexamination Certificate
2006-03-14
2006-03-14
Chan, Jason (Department: 2633)
Optical communications
Transmitter and receiver system
Including compensation
C398S141000, C398S158000, C398S208000
Reexamination Certificate
active
07013089
ABSTRACT:
A method and apparatus for reducing nonlinear phase noise that is induced in an optical transmission system by the interaction of optical amplifier noise and Kerr effect. The apparatus includes an intensity-scaled nonlinear phase noise compensator. The phase noise compensator reduces the nonlinear phase noise by rotating a phase estimate by a scaled signal strength estimate for the optical signal or by comparing a complex estimate of the optical signal to curved regions having scaled nonlinear decision boundaries. The scale factor is derived from the number of spans in the transmission system.
REFERENCES:
patent: 4771438 (1988-09-01), Nash
patent: 4847477 (1989-07-01), Smith
patent: 5533071 (1996-07-01), Krishnamurthy et al.
patent: 6016379 (2000-01-01), Bulow
patent: 6112062 (2000-08-01), Hans et al.
patent: 6246717 (2001-06-01), Chen et al.
patent: 6445752 (2002-09-01), Jiang et al.
patent: 6489846 (2002-12-01), Hatsugai
patent: 6507628 (2003-01-01), McCallister et al.
patent: 6591047 (2003-07-01), Malomed et al.
patent: 2002/0141041 (2002-10-01), Payne et al.
J. P. Gordon and L. F. Mollenauer, “Phase noise in photonic communications systems using linear amplifiers”, Optic Letters, Dec. 1, 1990, pp. 1351-1353, vol. 15-No. 23, Optical Society of America.
C. Xu, L. Mollenauer, Xiang Liu, “Compensation of nonlinear self-phase modulation with phase modulators”, Electronic Letters, published Nov. 21, 2002, pp. 1578-1579, vol. 38 No. 24.
Xiang Liu, Xing Wei, Richart E. Slusher, C. J. McKinstrie, “Improving transmission performance in differential phase-keyed systems by use of lumped nonlinear phase-shift compensation”, Optics Letters, published Sep. 15, 2002, pp. 1616-1681, vol. 27 No. 18, Optical Society of America.
Chris Xu & Xiang Liu, “Postnonlinearity compensation with data-driven phase modulators in phase-shift keying transmission”, Optics Letters, published Sep. 15, 2002, pp. 1619-1621, vol. 27 No. 18, Optical Society of America.
Ho Keangpo
Kahn Joseph Mardell
Chan Jason
Glidea David R.
Kim David S.
Menlo Patent Agency LLC
StrataLight Communications, Inc.
LandOfFree
Optical receiver having compensation for Kerr effect phase... 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 receiver having compensation for Kerr effect phase..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical receiver having compensation for Kerr effect phase... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3589886