Drive unit for optical switch

Optical waveguides – With optical coupler – Switch

Reexamination Certificate

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C385S018000, C216S002000

Reexamination Certificate

active

07035496

ABSTRACT:
A drive unit for controlling optical paths of an optical switch having at least one optical switch element and at least one pair of electrodes arranged near the optical switch element, each pair including a first electrode and a second electrode provided at a position opposite to the first electrode. The drive unit includes at least one drive circuit for the at least one optical switch element, respectively. The drive circuit has an output for supplying voltages to the electrodes to generate electrostatic forces between the electrodes and the optical switch element and the voltages are separated into positive voltages supplied to the first electrode and negative voltages supplied to the second electrode.

REFERENCES:
patent: 5970186 (1999-10-01), Kenney et al.
patent: 6533947 (2003-03-01), Nasiri et al.
patent: 2002/0085789 (2002-07-01), Chung
patent: 2003/0103717 (2003-06-01), Aksyuk et al.
patent: 2003/0122206 (2003-07-01), Bhattarai et al.
patent: 2003/0138191 (2003-07-01), Pouteau et al.
patent: 2004/0149679 (2004-08-01), Song et al.

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