Branching element for monomode light waveguides and the method o

Details Branching element for monomode light waveguides and the method o Branching element for monomode light waveguides and the method o

1979-11-01

1982-04-20

Lee, John D.

350320, G02B 5172

Patent

active

043256058

ABSTRACT:
A branching element for a single mode light waveguide characterized by monomode guides extending from a semi-transmissive reflective layer that is inclined to the axis thereof and the branching light waveguide is a multimode light waveguide which is positioned to receive light reflected by the layer from one of the monomode guides. The device has a good coupling efficiency and can be manufactured by a cheap and simple process.

REFERENCES:
patent: 3619030 (1971-11-01), Tomii et al.
patent: 3870396 (1975-03-01), Racki et al.
patent: 3977764 (1976-08-01), d'Auria et al.
patent: 4165496 (1979-08-01), Di Domenico, Jr. et al.
patent: 4173390 (1979-11-01), Kach
patent: 4176908 (1979-12-01), Wagner
Bloem et al, "Fiber-Optic Coupler", IBM Tech. Discl. Bull., vol. 16, No. 1, Jun. 1973, pp. 146-147.
"Simple Coupler Taps Fiber-Optic Cables", Electronics, Dec. 20, 1973, pp. 30-31.
Kuwahara et al, "A Semi-Transparent Mirror-Type Directional Coupler . . . ", IEEE Trans. on M'Wave Th. & Tech., Jan. 1975, pp. 179-180.

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