Optical switch, element therefor, and optical switching method

Details Optical switch, element therefor, and optical switching method Optical switch, element therefor, and optical switching method

2005-03-22

2005-03-22

Palmer, Phan T. H. (Department: 2874)

Optical waveguides

With optical coupler

Switch

C385S012000

Reexamination Certificate

active

06870983

ABSTRACT:
An optical switch, in which focal position of beams is adjusted to provide a high switching efficiency and a high stability in action without increasing a light source output of a control light, comprising a condensing means for making a signal light and a control light convergent and incident upon a nonlinear optical thin-film and wherein irradiation of the control light causes a change of the nonlinear optical thin-film in refractive index to thereby change the signal light into a transmitted light or a reflected light to take out the same as an output signal.

REFERENCES:
patent: 5315673 (1994-05-01), Stetter et al.

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