Switch for light conducting fibers

Details Switch for light conducting fibers Switch for light conducting fibers

1978-01-25

1980-05-27

Hille, Rolf G.

G02B 514

Patent

active

042047447

ABSTRACT:
A switch for optically connecting a first light conducting fiber selectively with at least one second light conducting fiber characterized by a first light conducting fiber having a magnetic sleeve adjacent the free end thereof, at least one second light conducting fiber, a substrate having a first flat surface with a layer being disposed on the first flat surface and having a recess with a groove for each of the first and second fibers extending therefrom. Each of the second fibers is disposed in its respective groove with the free end extending into the recess and the first fiber is disposed in its groove with its free end which has the magnetic sleeve being mobile in the recess between a first position forming an optical connection with one of the second fibers and a second position out of optical connection with one of the second fibers so that an application of an external magnetic field causes the free end of the first fiber to move between the first and second positions. One of the preferred methods of forming the switch comprises providing a substrate having a layer of light sensitive material disposed thereon, exposing the light sensitive material through a mask of a desired configuration, developing the exposed light sensitive layer to produce the recess with the grooves extending therefrom so that the fibers are clamped in the grooves with their ends extending into the recess to form the switch.

REFERENCES:
patent: 4023887 (1977-05-01), Speers
patent: 4152043 (1979-05-01), Albanese
P. G. Hale and R. Kompfner, "Mechanical Optical-Fibre Switch," Electronics Letter Jul. 22, 1976, vol. 12, No. 15 p. 388.

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