Patent ID: 8526814
Filing Date: 2013-09-03
Classification: H04Q

Abstract:
1. A multiple input/output wavelength selective switch device for inputting wavelength division multiplexing optical signals (hereinafter referred as WDM signals) of first to N th channels, the signals each having wavelengths λ 1 to λ L (L is a natural number of 2 or more), to N input routes (N is a natural number of 2 or more) and outputting the wavelength multiplexing optical signals of desired channels from M output routes (M is a natural number of 2 or more) comprising: an optical cross connect switch for outputting desired M WDM light beams among the WDM signals of N channels inputted to the N input routes; and a wavelength selector for receiving inputs of the M outputs from said optical cross connect switch, selecting an optical signal of desired wavelengths with respect to each of the inputted WDM signals and outputting the selected signals as M WDM signals, wherein said optical cross connect switch includes: