Dispersion compensating method, dispersion compensating...

Optical communications – Transmitter and receiver system – Including compensation

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C398S081000, C398S149000, C398S147000

Reexamination Certificate

active

06871024

ABSTRACT:
The present invention aims at realizing a dispersion compensating method capable of readily conducting automatic compensation of waveform degradation caused by dispersion characteristics of an optical transmission path, and at providing a dispersion compensating apparatus and an optical transmission system, of a smaller size at a reduced cost. To this end, the dispersion compensating apparatus of the present invention comprises: a variable dispersion compensator for compensating for the dispersion of optical signal input via an optical transmission path; a bit error information monitoring circuit for generating bit error information of a received signal output from the variable dispersion compensator via an optical receiving circuit; and a controlling circuit for optimally controlling a wavelength dispersion value of the variable dispersion compensator based on the bit error information from the bit error information monitoring circuit.

REFERENCES:
patent: 5608562 (1997-03-01), Delavaux et al.
patent: 5717510 (1998-02-01), Ishikawa et al.
patent: 5877879 (1999-03-01), Naito
patent: 5969865 (1999-10-01), Shirasaki
patent: 5982963 (1999-11-01), Feng et al.
patent: 6229631 (2001-05-01), Sato et al.
patent: 6370300 (2002-04-01), Eggleton et al.
patent: 6654564 (2003-11-01), Colbourne et al.
patent: 20030163771 (2003-08-01), Tomofuji
patent: 0700178 (1996-03-01), None
patent: 0902558 (1999-03-01), None
patent: 0944191 (1999-09-01), None
patent: 7-221705 (1995-08-01), None
patent: 7-231297 (1995-08-01), None
patent: 9-326755 (1997-12-01), None
patent: 10-276172 (1998-10-01), None
Ishikawa, et al. “Demonstration of Automatic Dispersion Equalization in 40 Gbit/s OTDM Transmission.” ECOC'98 Sep. 20-24, 1998. pp. 519-520.
Akiyama, et al. “Automatic Dispersion Equalization in 40 Gbit/s Transmission by Seamless Switching Between Multiple Signal Wavelengths.” ECOC'99, Sep. 26-30, 1999. pp. 150-151.
Ohn, et al. “Tunable Fiber Grating Dispersion Using a Piezoelectric Stack.” OFC'97 Technical Digest. pp. 155-156.
M. Shirasaki “Dispersion Compensation Using the Virtually Imaged Phased Array.” APCC/OFCC'99. pp. 1367-1370.
Hiroki Ooi, et al. “Automatic Polarization-mode dispersion Compensation in 40 Gbit/s Transmission.” OFC/IOOC'99, Feb. 21-26, 1999, San Diego. pp. 86-88.
Henning Bulow. “Equalization of Bit Distortion Induced by Polarization Mode Dispersion.” IOS Press, 1997. pp. 65-72.
G. Fisher, et al. “Automatic Polarization Mode Dispersion Compensation in 40 Gbit/s Optical Transmission System.” Electronics Letters, Nov. 12, 1998, vol. 34, No. 23. pp. 2258-2259.

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

Dispersion compensating method, dispersion compensating... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Dispersion compensating method, dispersion compensating..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dispersion compensating method, dispersion compensating... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3381983

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