The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 27, 2008
Filed:
Mar. 21, 2002
Bamdad Bakhshi, New York, NY (US);
Ekaterina A. Golovchenko, Colts Neck, NJ (US);
Dmitriy I. Kovsh, Hoboken, NJ (US);
Michael Vaa, Little Silver, NJ (US);
Bamdad Bakhshi, New York, NY (US);
Ekaterina A. Golovchenko, Colts Neck, NJ (US);
Dmitriy I. Kovsh, Hoboken, NJ (US);
Michael Vaa, Little Silver, NJ (US);
Tyco Telecommunications (US) Inc., Morristown, NJ (US);
Abstract
A method and apparatus is provided for managing chromatic dispersion in an NRZ-based WDM long-haul optical transmission system so that nonlinearities are reduced, especially those at the edge channels of the band. The method includes using between 500 ps/nm and 2000 ps/nm of residual dispersion and a 40%/60% pre/post DCU split ratio when the channel wavelengths are shorter than the zero dispersion wavelength. Using these dispersion compensation rules, the nonlinear propagation effects in NRZ-based WDM systems is reduced, thus allowing for higher optical power per channel and/or longer transmission distances.