Time-division optical exchange

摘要: PURPOSE:To make the titled exchange small in size and to form into IC constitution by composing an optical switch for writing of demultiplexer which demultiplexes light components as many output terminals 1st gate switches also reading 2nd connected side memory element multiplexer. CONSTITUTION:Information A a time-division signal 100 is written bistable semiconductor laser 340. Similarly, driving circuit 321 current circuits 355, 365, 375 write pieces information B, C, D lasers 350, 360, 370 controlling currents applied 2b, 2c, 2d, 370. An waveguide 342 380 through 3a with, example, 4th time slot 190. Consequently, extracted from projection 440 340 with control voltage 450 obtained at 380. D, B are read out