Optical switch and optical distributor using polarization contro

Details Optical switch and optical distributor using polarization contro Optical switch and optical distributor using polarization contro

1994-10-24

1997-04-08

Lee, John D.

Optical waveguides

With optical coupler

Switch

385 11, 385 18, G02B 627, G02B 635

Patent

active

056196016

ABSTRACT:
A reflecting-type optical switch is constructed by stacking a parallel plate-shaped glass substrate and a parallel plate-shaped polarization controller, providing a reflecting portion in such a manner that incident light propagates in zigzag fashion owing to reflection, and depositing a polarizing separating film on the glass substrate where two prescribed incident light beams intersect owing to reflection. Further, a transmission-type optical switch is constructed by providing a polarization controller in front of a polarizing prism, and depositing a polarizing separating film on the glass substrate of the polarizing prism where two prescribed incident light beams intersect owing to reflection. Furthermore, an optical distributor is constructed by stacking a plurality of parallel plate-shaped glass substrates and depositing a partial reflecting film on the glass substrate where two prescribed incident light beams intersect owing to reflection.

REFERENCES:
patent: 4805977 (1989-02-01), Tamura et al.
patent: 4948229 (1990-08-01), Soref
patent: 4989941 (1991-02-01), Soref
patent: 5321498 (1994-06-01), Song et al.
patent: 5381250 (1995-01-01), Meadows
S.H. Song, E.H. Lee, C.D. Carey, D.R. Selviah and J.E. Midwinter, Sep. 15, 1992, pp. 1253-1255, "Planar Optical Implementation of crossover interconnects", 1992 Optical Society of America vol. 17, No. 18 Optics Letters.

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