DEVICE AND METHOD FOR COLORLESS OPTICAL SWITCHING

• Main Authors: ZHANG GUANGYONG, SHEN SHUQIANG
• Format: Patent
• Language: English
• Published: 22.03.2012
• Subjects: OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHYSICS

The present invention discloses a device and a method for colorless optical switching, where the device includes: a demultiplexer, configured to demultiplex the input multi-wavelength light into multiple beams of light with single wavelength; a first optical cross unit, configured to output the received multiple beams of light with single wavelength through target ports to an optical switch array; the optical switch array, configured to drop the light that needs to be dropped from multiple beams of light with single wavelength, receive the light added by the local node, and output the light that needs to pass in the multiple beams of light with single wavelength and the light added by the local node; and a combiner, configured to combine the light output by the optical switch array. The optical switch device and method provided in the embodiments of the present invention feature colorlessness, low insertion loss, and low costs.