WAVELENGTH GROUP OPTICAL ADD/DROP MULTIPLEXOR AND WAVELENGTH GROUP OPTICAL CROSS CONNECTOR

摘要

PURPOSE: A wavelength group OADM(Optical Add/Drop Multiplexor) and a wavelength group OXC(optical cross connector) are provided to simplify a composition of system by grouping a wavelength in an optical add/drop multiplex and an optical cross connection. CONSTITUTION: A plurality of wavelength group reverse multiplexors(410,411) divide an optical signal inputted from a plurality of optical fibers by wavelength. An (MxN)x(MxN) space switch(420) transports the optical signal divided by wavelength to a wavelength port. A plurality of wavelength group multiplexors(430,431) multiplex the optical signal which passes through the (MxN)x(MxN) space switch(420) and inputs the optical signal into an optical transport line.