Optical fiber beam splitter couplers employing coatings with dic

Details Optical fiber beam splitter couplers employing coatings with dic Optical fiber beam splitter couplers employing coatings with dic

1980-02-01

1981-10-27

Levy, Stewart J.

350 9616, G02B 5172

Patent

active

042969956

ABSTRACT:
A single fiber of any glass type is cut at a suitable angle and both halves are then polished at the end surfaces. A layer of material having dichroic properties or multiple layers are then deposited on one coupler half and the two halves are rejoinded with the angular faces in alignment. Each of the cut fibers are supported in a potting compound. A third fiber is added relatively transverse to the original fibers in order to receive light from the deposited layer. This fiber is associated with one port, while the other fibers are associated with two other ports, thus providing a three port coupler device.

REFERENCES:
patent: 3870396 (1975-03-01), Racki et al.
patent: 4165496 (1979-08-01), Di Domenico, Jr. et al.
patent: 4176908 (1979-12-01), Wagner
G. Bickel et al., "Bidirectional Coupler for Full Duplex Transmission on a Single Optical Fiber", SPIE vol. 139, 1978, pp. 63-69.
Bloem et al., "Fiber-Optic Coupler", in IBM Tech. Disc. Bull. vol. 16, No. 1, Jun. 1973, pp. 146-147.
"Simple Coupler Taps Fiber-Optic Cables", in Electronics, Dec. 1973, p. 30.

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