Optical transmission equipment with dispersion compensation,...

Details Optical transmission equipment with dispersion compensation,... Optical transmission equipment with dispersion compensation,...

2006-05-02

2006-05-02

Pak, Sung (Department: 2874)

Optical waveguides

With optical coupler

Plural

C385S027000, C398S081000, C398S083000

Reexamination Certificate

active

07039272

ABSTRACT:
In a wavelength-division multiplexing system with an OADM, part of the chromatic dispersion on a transmission line is compensated for by a chromatic dispersion compensator for a dropped wavelength of the wavelength-division multiplexing system. Also, chromatic dispersion is compensated for by a chromatic dispersion compensator for an added wavelength of the wavelength-division multiplexing system. The chromatic dispersion compensator for dropped wavelength acts on the signal dropped by the OADM, and the chromatic dispersion compensator for added wavelength acts on the added signal. Both the chromatic dispersion compensators act on the passing signal. With the chromatic dispersion compensators being mounted in the optical transmission apparatus before the system is upgraded to OADM, it is not necessary to alter the chromatic dispersion compensating method and the variation of the communication quality can be suppressed.

REFERENCES:
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patent: 6577438 (2003-06-01), Sugawara et al.
patent: 2001/0024544 (2001-09-01), Matsuoka et al.
patent: 2002/0105695 (2002-08-01), DeGrange et al.
patent: 2003/0198473 (2003-10-01), Sekiya et al.
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patent: P2001-257642 (2001-09-01), None
patent: P2001-268056 (2001-09-01), None

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