Optical WDM coupling systems

Details Optical WDM coupling systems Optical WDM coupling systems

1995-07-07

1997-05-13

Palmer, Phan T. H.

Optical waveguides

With optical coupler

Plural

385 20, 385 16, 359123, G02B 628

Patent

active

056299940

ABSTRACT:
An optical coupling system for wavelength-individual through-connection between wavelength-division multiplex (WDM) a plurality of input and output fibers with simultaneous possibility of wavelength conversion is provided. A respective optical splitter individually associated to an input fiber multiplies the WDM signal incoming on the appertaining input fiber into a.multidot.m WDM signals that are supplied to a.multidot.m tunable optical filters, wherein a is the plurality of output fibers and m is the plurality of wavelengths combined in a respective wavelength-division multiplex on an output fiber. Respectively, a plurality e of tunable filters connected to the plurality e of input fibers, combined at the output side via an optical combiner, lead to a wavelength converter that is connected to an input of a wavelength-division multiplexer preceding an output fiber.

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Sato et al., "Optical Path Layer Technologies to Enhance B-ISDN Performance", Conference Record, vol. 3/3, Communications - Technology that Unites Nations, ICC '93, pp. 1300-1307. Feb. 1993.
H. Rokugawa et al., "Wavelength Conversion Laser Diodes Application to Wavelength-Division Photonic Cross-Connect Node with Multistage Configuration", IEICE Transactions on Communications, vol. E75-B, No. 4, Apr. 1992, Tokyo, JP, pp. 267-274.

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