Dispersion compensator, optical transmission system and...

Details Dispersion compensator, optical transmission system and... Dispersion compensator, optical transmission system and...

2007-08-02

2008-11-25

Kianni, K. Cyrus (Department: 2883)

Optical waveguides

With optical coupler

Switch

C385S015000, C385S001000

Reexamination Certificate

active

07457494

ABSTRACT:
A variable dispersion slope compensator with a high-accuracy and a low-cost structure for compensating the dispersion slope compensation error accompanying variations in the zero-dispersion wavelength in transmission fibers in long-distance, high-speed WDM (wavelength division multiplexing) transmission systems. When the value by which the optical fiber dispersion slope (ps
m
m/km) is divided by the dispersion coefficient (ps
m/km) is defined as the relative dispersion slope RDS (
m), then the variable dispersion slope compensator includes a first dispersion compensation fiber group including at least two dispersion compensation fibers with a common relative dispersion slope; and a second dispersion compensation fiber group including at least two dispersion compensation fibers with a common relative dispersion slope different from the relative dispersion slope of the first group; and a patch cable group or an optical switching group for making an optional connection combination between the first and second dispersion compensation fiber groups.

REFERENCES:
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patent: 2001/0021294 (2001-09-01), Cai et al.
patent: 2003/0086647 (2003-05-01), Willner et al.
patent: 2003/0219198 (2003-11-01), Zhou
patent: 2004/0047551 (2004-03-01), Ramachandran
patent: 2004/0109691 (2004-06-01), Miyazaki
patent: 2004/0208434 (2004-10-01), Inagaki et al.
patent: 10-39155 (1998-02-01), None

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