Optical receiving station, optical communication system, and...

Optical communications – Transmitter and receiver system – Including compensation

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C398S081000, C398S147000, C398S148000, C398S208000, C398S209000

Reexamination Certificate

active

07006770

ABSTRACT:
The invention relates to an optical receiving station, an optical communication system, and a dispersion controlling method for precisely controlling chromatic dispersion in an optical transmission line or chromatic dispersion in an optical transmission line that varies with time. An optical receiving station is provided with a dispersion compensating section for receiving, via an optical transmission line, an optical signal modulated according to an optical duo-binary modulation method and for changing a dispersion value to be used for compensating for chromatic dispersion in an optical transmission line, an intensity detecting section for detecting the intensity of a specific frequency component of the optical signal output from the dispersion compensating section, and a controlling section for adjusting the dispersion value of the dispersion compensating section so that the output of the intensity detecting section has a predetermined extreme value.

REFERENCES:
patent: 6580542 (2003-06-01), Song et al.
patent: 902558 (1999-03-01), None
patent: 902560 (1999-03-01), None
Patent Abstracts of Japan of JP 11-068657 dated Mar. 9, 1999.
Patent Abstracts of Japan of JP 8-139681 dated May 31, 1996.
Patent Abstracts of Japan of JP 10-112688 dated Apr. 28, 1998.
Patent Abstracts of Japan of JP 10-164010 dated Jun. 19, 1998.
Patent Abstracts of Japan of JP 9-236781 dated Sep. 9, 1997.
M. Yoneyama et al., “A 10-Gbit/s optical duobinary precoder IC using 0.2-μm gate-length GaAs MESFETs” dated 1998. Electronic Information Communication Society Convention pp 1-4, 444.
Takashi Ono, “Demonstration of high-dispersion tolerance of 20-Gbit/s optical duobinary signal generated by a low-pass filtering method”, OFC '97 Technical Digest, 1997, pp. 268-269.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Optical receiving station, optical communication system, and... 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 receiving station, optical communication system, and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical receiving station, optical communication system, and... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3680845

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.