Cross-connection of wavelength-division-multiplexed high speed optical channels

摘要: A cross-connection device has two three-port optical circulators for being supplied with wavelength-division-multiplexed signals each having a plurality of wavelengths from respective input ports, fiber grating mirror inserted between the circulators, reflecting only an signal certain wavelength and passing other wavelengths, controller controlling reflected by mirror, output ports outputting cross-connected circulators. The controls temperature pressure applied to select mirror. may comprise mirrors different cross-connect desired number signals.