Optical cross-connect apparatus

Details Optical cross-connect apparatus Optical cross-connect apparatus

2006-09-12

2006-09-12

Doan, Jennifer (Department: 2874)

Optical waveguides

With optical coupler

Plural

C385S015000, C359S199200

Reexamination Certificate

active

07106927

ABSTRACT:
Optical cross-connect apparatus including first wavelength converters converting m different wavelengths λ1 through λm contained in n WDM input optical signals into 2m wavelengths λ1 through λ2m; a first wavelength cross-connector performing cross-connection according to wavelengths, separating the optical signals wavelength-converted by the first wavelength converters into 2m wavelengths combining optical signals with the 2m separated wavelengths; second wavelength converters converting the 2m wavelengths contained in the optical signals cross-connected by the first wavelength cross-connector into 2m wavelengths; a second wavelength cross-connector performing cross-connection according to wavelengths separating the optical signals wavelength-converted by the second wavelength converters into 2m wavelengths and combining optical signals with the 2m separated wavelengths; and third wavelength converters converting the 2m wavelengths λ1 through λ2m in the optical signals cross-connected by the second wavelength cross-connector into m wavelengths λ1 through λm and sending the m wavelengths λ1 through λm.

REFERENCES:
patent: 5627925 (1997-05-01), Alferness et al.
patent: 2004/0165816 (2004-08-01), Oikawa et al.
English Language Abstract Japanese Patent Publication No. 05-030557, dated Feb. 5, 1993.
English Language Abstract Japanese Patent Publication No. 10-066112, dated Mar. 6, 1998.
English Language Abstract Japanese Patent Publication No. 2000-134649, dated May 12, 2000.
English Language Abstract Japanese Patent Publication No. 2000-175228, dated Jun. 23, 2000.
English Language Abstract Japanese Patent Publication No. 2000-324522, dated Nov. 24, 2000.
English Language Abstract Japanese Patent Publication No. 2001-008244, dated Jan. 12, 2001.
English Language Abstract Japanese Patent Publication No. 2002-165238, dated Jun. 7, 2002.
English Language Abstract Japanese Patent Publication No. 2002-244951, dated Aug. 30, 2002.

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