Abstract
PCT No. PCT/IL96/00079 Sec. 371 Date Feb. 17, 1998 Sec. 102(e) Date Feb. 17, 1998 PCT Filed Aug. 12, 1996 PCT Pub. No. WO97/09536 PCT Pub. Date Mar. 13, 1997An optical switch for switching first and second input beams linearly polarized in the same direction which has a first half wave plate for rotating the polarization optically coupled to the second input beam, the first input beam and the output of the half wave plate input to a first polarization beam displacer which provides a combined beam, the output of which is connected to a controllable half wave gate which in a passive state passes the combined beam gate and in the active state passes the combined beamed rotated by 90 degree to an output Gate in dependence of a controlled signal input to the controllable wave gate. The output of the controllable wave gate is input to a second polarization beam displacer which refracts light into first and second refracted output beams displaced from each other a predetermined distance and a second half wave plate.
| Original language | American English |
|---|---|
| Patent number | US6041151 |
| IPC | G02F 1/ 31 A I |
| Priority date | 12/08/96 |
| State | Published - 21 Mar 2000 |