Optical fiber duplex coupler

Details Optical fiber duplex coupler Optical fiber duplex coupler

1983-05-11

1985-07-23

Lee, John

Radiant energy

Ionic separation or analysis

Static field-type ion path-bending selecting means

250227, 350 9616, 350 9633, G02B 726

Patent

active

045305668

ABSTRACT:
In a simple optical fibre duplex coupler of high light-coupling efficiency, two elongate optical guides are so arranged that, over a part of their lengths extending from one end of the coupler, one optical guide surrounds and is coaxial with the other optical guide with their neighboring end faces lying in a substantially common plane. At a position intermediate the ends of the coupler, the optical guides separate into distinct optical channels. The optical guides are surrounded by and enclosed in a body 1 of a transparent plastics material having a refractive index less than that of the outer optical guide. Preferably, the inner optical guide is a composite optical fibre and the outer optical guide is an elongate body of moulded transparent plastics material having a refractive index greater than that of the material of the cladding of the composite optical fibre.

REFERENCES:
patent: 4076376 (1978-02-01), Slaughter
patent: 4237550 (1980-12-01), Steensma
patent: 4273413 (1981-06-01), Bendiksen et al.
patent: 4279465 (1981-07-01), Vojvodich
patent: 4465335 (1984-08-01), Eppes

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