WAVELENGTH MULTIPLEXING DEVICE, ITS MANUFACTURING METHOD, AND WAVELENGTH MULTIPLEXING NETWORK SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a wavelength multiplexing device and its manufacturing method which suppresses an increase in system scale and reduces optical transmission loss while achieving a broadcast function of video signal in a wavelength multiplexing network system, and also to provide the wavelength multiplexing network system using the wavelength multiplexing device.

SOLUTION: The wavelength multiplexing device includes: a filter device 2 reflecting light of a part of wavelength of input wavelength multiplexed light to a direction different from an optical path direction of the input wavelength multiplexed light; first optical systems 3-1 to 3-N re-inputting the reflected light reflected by the filter device 2 to a plurality of incident positions of a reflective surface of the filter device 2; and second optical systems 4-1 to 4-N separating transmitted light of the filter device 2 into each wavelength and inputting each of them to the plurality of incident positions from a transmission surface of the filter device 2.

COPYRIGHT: (C)2008,JPO&INPIT