Light energy broadening coupler

Details Light energy broadening coupler Light energy broadening coupler

1994-01-19

1995-07-11

Healy, Brian

Optical waveguides

With optical coupler

385 27, 385 42, 385 49, 385129, 385131, G02B 626

Patent

active

054328721

ABSTRACT:
An optical device comprising an optical waveguide (13) on a substrate (11) which over part of its length forms one of a stack (15) of coupled optical waveguide sections of the same length, the stack being of a length such that a light wave of predetermined frequency propagating along the waveguide (13) to enter the stack (15) at one end thereof produces light waves at the other end of the stack which are substantially in phase adjacent each waveguide section. The device finds particular application for coupling light from a substrate waveguide into another waveguide, e.g. an optical fibre (27), off the substrate (11).

REFERENCES:
patent: 4113345 (1978-09-01), Gerndt
patent: 4483583 (1984-11-01), Ungeri
patent: 4811351 (1989-03-01), Matsui et al.
patent: 5048905 (1991-09-01), Fejer et al.
patent: 5121452 (1992-06-01), Stowe et al.
patent: 5140655 (1992-08-01), Bergmann
patent: 5175779 (1992-12-01), Mortimore
patent: 5175782 (1992-12-01), Bowen et al.

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