Electrostatic optical switch with electrical connection to coate

Details Electrostatic optical switch with electrical connection to coate Electrostatic optical switch with electrical connection to coate

1977-08-25

1979-05-01

Corbin, John K.

G02B 514

Patent

active

041520432

ABSTRACT:
An electrical optical fiber switch includes first, second and third optical fibers located so that a lateral movement of the first optical fiber breaks optical connection with the second and makes optical connection with the third. The first 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 first fiber are connected across the voltage source. Depending on the resulting polarity of the first fiber coating, the first fiber is electrostatically moved between the electrodes so as to accomplish optical switching. A dielectric coating or barrier is provided on the first fiber coating or on the electrodes so as to prevent electrical contact. Many such optical fiber switches can be provided on a planar optical switch board for optical test terminations in an optical fiber communications system.

REFERENCES:
patent: 3470320 (1969-09-01), Pike et al.
Leighton, "Fiber Optic Shutter", IBM Tech. Disc. Bulletin, vol. 11, No. 8, Jun. 1969, pp. 912-913, (located 350/96.20).
Hale et al, "Mechanical Optical-Fibre Switch", Electronics Letters, vol. 12, No. 15, Jul. 1976, p. 388, (located 350/96.20).
Ede, "Linked Optical and Fiber Optic Components", Proceedings of Electro-Optical Systems Design Conf., N.Y.C., Sep. 1969, pp. 205-211.

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