Method and system for wavelength division multiplexed...

Details Method and system for wavelength division multiplexed... Method and system for wavelength division multiplexed...

2005-06-29

2009-12-01

Bello, Agustin (Department: 2613)

Optical communications

Optical repeater system

Regenerative

C398S181000, C398S173000, C398S097000

Reexamination Certificate

active

07627256

ABSTRACT:
A wavelength division multiplexed optical signal transmission method, a wavelength division multiplexed optical signal transmission system and an optical repeater enabling the number of wavelengths to be detected without error even when optical noise is caused in the optical repeater and such functions as adjustment and monitoring of the level of a wavelength division multiplexed optical signal to be performed properly. An optical repeater processes controlled optical signals of different wavelengths individually based on a control optical signal that contains wavelength number information indicating the total number of wavelengths and the presence or absence of a controlled optical signal with respect to each wavelength. Thus, even when optical noise is caused in the optical repeater, the number of wavelengths can be detected without error and such functions as adjustment and monitoring of the level of a wavelength division multiplexed optical signal can be performed properly.

REFERENCES:
patent: 7116908 (2006-10-01), Uda et al.
patent: 10-303816 (1998-11-01), None
patent: 10-303823 (1998-11-01), None
patent: 2001-168841 (2001-06-01), None
patent: 2001-7829 (2001-12-01), None
patent: 2002-250947 (2002-09-01), None
patent: 2003-174421 (2003-06-01), None
Japanese Office Action in corresponding Japanese Application No. 2004-191321 filed Jun. 29, 2004.

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