G - Physics – 02 – B
Patent
G - Physics
02
B
88/97.4
G02B 6/35 (2006.01)
Patent
CA 1091491
Abstract An optical fiber switch includes an optical fiber and first and second light transmitting or receiving elements located so that a lateral movement of the optical fiber breaks optical connection with the first element and makes optical connection with the second element. The optical fiber is coated with an electrically conductive substance which is electrically switched to a positive or negative side of a DC voltage source. Electrodes disposed adjacent to the fiber are connected across the voltage source. Depending on the resulting polarity of the fiber coating, the fiber is electrostatically moved between the electrodes so as to accomplish optical switching. The light trans- mitting or receiving elements may comprise optical fibers, light emitting diodes, photodetectors or the like. A dielectric coating or stop is provided on the fiber coating or on the electrodes so as to prevent electrical contact. A plurality of such optical fiber switches can be provided on a planar optical switch board for optical test terminations in an optical fiber communications system (FIG.1).
307736
Kirby Eades Gale Baker
Western Electric Company Incorporated
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