Optical communications – Transmitter and receiver system – Including optical waveguide
Reexamination Certificate
2004-12-23
2008-12-02
Sedighian, M. R. (Department: 2613)
Optical communications
Transmitter and receiver system
Including optical waveguide
C398S159000, C398S081000
Reexamination Certificate
active
07460789
ABSTRACT:
A control method, which is applicable to a variety of network configurations, controls an optical transmission system to determine optimum optical input power to a transmission path for increased optical transmission quality. The optical transmission system has terminal stations, repeaters, dispersion compensation modules, and a dispersion compensation controller. The terminal stations transmit and receive an optical signal through an optical fiber transmission path. The repeaters are disposed in the optical fiber transmission path for amplifying the optical signal. The dispersion compensation modules are disposed in the terminal stations and the repeaters for compensating for dispersion of the optical signal. The dispersion compensation controller determines a target value for a nonlinear phase shift, which is an indication of a self-phase modulation caused by a transmission medium of the optical fiber transmission path, to have a maximum residual dispersion tolerance, and adjusts at least one of the input powers applied to transmission paths connected to the terminal stations or the repeaters and the input powers applied to the dispersion compensation modules to equalize the nonlinear phase shifts of paths in the optical transmission system to the target value.
REFERENCES:
patent: 5218662 (1993-06-01), Dugan
patent: 5365362 (1994-11-01), Gnauck et al.
patent: 5524144 (1996-06-01), Suzuki
patent: 5539563 (1996-07-01), Park
patent: 5608562 (1997-03-01), Delavaux et al.
patent: 5991477 (1999-11-01), Ishikawa et al.
patent: 6229631 (2001-05-01), Sato et al.
patent: 6570691 (2003-05-01), Miyauchi et al.
patent: 6654561 (2003-11-01), Terahara et al.
patent: 6741389 (2004-05-01), Kumasako et al.
patent: 6768872 (2004-07-01), Tsuritani et al.
patent: 6856768 (2005-02-01), Gnauck et al.
patent: 7068876 (2006-06-01), Tsuda et al.
patent: 7081987 (2006-07-01), Bosloy et al.
patent: 7233432 (2007-06-01), Islam et al.
patent: 7254342 (2007-08-01), Odate et al.
patent: 7263296 (2007-08-01), Miyauchi et al.
patent: 2003/0165285 (2003-09-01), Yu et al.
patent: 2004/0151510 (2004-08-01), Tanaka et al.
patent: 2004/0190820 (2004-09-01), Uda
patent: 2004/0190911 (2004-09-01), Franco et al.
patent: 2004/0208608 (2004-10-01), Tager et al.
patent: 2005/0185964 (2005-08-01), Ishikawa
patent: 2006/0193638 (2006-08-01), Akiyama et al.
Patent Abstracts of Japan, Publication No. 2000-236297, Published Aug. 29, 2000.
Miyashita Takuya
Odate Kaori
Sekiya Motoyoshi
Fujitsu Limited
Sedighian M. R.
Staas & Halsey , LLP
LandOfFree
Optical transmission system and method of controlling... 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 transmission system and method of controlling..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical transmission system and method of controlling... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4037904