Patent ID: 6798936
Filing Date: 2004-09-28
Classification: G02B,H04J,H04Q

Abstract:
An optical switching system comprising:a first space division type optical switch which is positioned at an input side, and performs switching on an optical fiber by optical fiber basis; a second space division type optical switch which is positioned at an output side, and performs switching on an optical fiber by optical fiber basis; and a wavelength division type optical switch which receives a wavelength-multiplexed signal through an optical fiber, performs wavelength division, switching on a wavelength by wavelength basis, and wavelength multiplexing, and outputs a wavelength-multiplexed signal through an optical fiber, wherein some of optical fibers which are output from said first space division type optical switch are directly led to said second space division type optical switch, and the rest of optical fibers which are output from said first space division type optical switch are led to said wavelength division type optical switch, and optical fibers which are output from said wavelength division type optical switch are led to said second space division type optical switch.