Branching device

Details Branching device Branching device

1979-08-20

1981-08-25

Levy, Stewart J.

350 9616, 350 9621, G02B 514

Patent

active

042855713

ABSTRACT:
A branching device for optical waveguides by which a component of light is coupled out of the main light path which is formed by a first and second waveguide into a subsidiary third waveguide comprises a simplified construction which reduces material costs as well as assembly costs. For this purpose, the invention provides that between two coaxially aligned optical waveguides there is arranged only one beam divider reflector which is in the form of a coating or layer and that in the region of the group of light beams which is emitted from the end surface of one of the waveguides and is reflected by the beam divider reflector there is a gradient lens which focuses the end surface of the one waveguide onto the end surface of a third waveguide.

REFERENCES:
patent: 3937557 (1976-02-01), Milton
patent: 3937560 (1976-02-01), Milton
patent: 4021099 (1977-05-01), Kawasaki et al.
patent: 4165496 (1979-08-01), Di Domenico, Jr. et al.
K. Kobayashi et al., "Micro-Optics Devices for Branching, Coupling, Multiplexing & Demultiplexing" in IOOC 1977 B11-3.
Y. Ueno et al., "Data Highway Using Optical Fibercable" at Conf. on Laser & Electro Optical System, May 1976.

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