Wavelength selective optical switch

Details Wavelength selective optical switch Wavelength selective optical switch

2008-03-04

2008-03-04

Wood, Kevin S (Department: 2874)

Optical waveguides

With optical coupler

Switch

Reexamination Certificate

active

11319643

ABSTRACT:
A wavelength selective optical switch according to the present invention detects wavelengths of signal lights input to a signal light input port in a main body portion which performs the switching of optical paths for each wavelength by an angular control of a plurality of mirrors, and also, monitors the intensity of a monitor light which is generated in an internal light source and is given from a monitor light input port disposed in the main body portion to be led to a monitor light output port, to feedback control a reflecting surface angle of the mirror corresponding to the wavelength of the signal light which is not input to the signal light input port, so that the output intensity of the monitor light becomes maximum. As a result, it is possible to reliably control the reflective surface angle of the mirror corresponding to the wavelength of the signal light which is not input, and therefore, the crosstalk doe not occur even when the signal light is newly input.

REFERENCES:
patent: 6289145 (2001-09-01), Solgaard et al.
patent: 6501877 (2002-12-01), Weverka et al.
patent: 6549699 (2003-04-01), Belser et al.
patent: 6600849 (2003-07-01), Ducellier et al.
patent: 2003/515187 (2003-04-01), None
patent: 01/37021 (2001-05-01), None

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