To link a plurality of light control mode optical path switching devices by effectively exploiting an emission spectral band of a light source related to control light and an absorption spectral band of a control light absorption layer, and making a plurality of control light beams with wavelengths different from that of signal light propagate through an optical path identical to that of the signal light on the basis of a wavelength multiplexing mode.
In the optical path switching type optical signal transceiver, an optical path of the signal light 1001 of one kind with a wavelength different from that of the control light is switched to seven different directions 1201-1207 by combining one-to-seven light control type optical path switching devices 120, 220, 320 together in three steps, by using six control light beams 1001-1016, 1021-1026, 1031-1036 with respectively different wavelengths for each stage, and by using a light control mode. In each stage, demultiplexers 110 etc. to separate the control light and the signal light, distributors 130 etc. to distribute the control light, and seven multiplexers 141-147 etc. are provided.
FUTAKI SHIRO
TANAKA NORIO
UENO ICHIRO
HIRAGA TAKASHI
YAMAMOTO NORITAKA
DAINICHISEIKA COLOR CHEM
NAT INST OF ADVANCED IND SCIEN
| JP2004109892A | 2004-04-08 | |||
| JP2005234356A | 2005-09-02 | |||
| JP2008083095A | 2008-04-10 | |||
| JP2001119347A | 2001-04-27 | |||
| JP2004222012A | 2004-08-05 | |||
| JP2007225827A | 2007-09-06 | |||
| JPH11337988A | 1999-12-10 |