Optical switch and MEMS package

Details Optical switch and MEMS package Optical switch and MEMS package

2008-05-23

2009-08-25

Rojas, Omar (Department: 2874)

Optical waveguides

With optical coupler

Switch

C385S037000

Reexamination Certificate

active

07580599

ABSTRACT:
An optical switch switches ports through which a beam is input and output and includes an optical system through which the beam passes; a movable reflector that is enclosed in a casing and reflects, at a variable angle, the beam that has passed through the optical system; and a transmissive window that is disposed in the casing at a position through which the beam passes, is made of a uniaxial crystal, and obtains a phase difference with respect to the beam passing therethrough having a wavelength λ. The phase difference is λ/4 times a positive odd integer and results from a setting of an orientation of a crystal axis and a thickness of the transmissive window.

REFERENCES:
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patent: 2005-136119 (2005-05-01), None
Kenichi Sato et al., “Cutting-edge Technologies on Photonic Backbone Networks”, Institute of Electronics, Information and Communication Engineers Journal, Feb. 2002, vol. 85 No. 2, pp. 94-103.

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