Optical waveguide isolation

Details Optical waveguide isolation Optical waveguide isolation

1994-08-10

1995-10-31

Ullah, Akm E.

Optical waveguides

Integrated optical circuit

385 38, 385 45, G02B 612

Patent

active

054637058

ABSTRACT:
Optical waveguide isolator (121) for monolithic integration with semiconductor light emitting diodes such as Fabry-Perot or ring laser diodes. The present optical isolator (121), with optical input port (95) and output pod (96), comprises a branching waveguide coupler (56). This branching waveguide coupler (56) has a waveguide stem (60) splitted at one end into two waveguide branches (57, 58) such that a light wave fed via said input pod (95) into a first of these branches (58), is guided via the waveguide stem (60) and the output pod (96) out of the device. A light wave fed to the isolator's output pod (96) is guided along the stem (60) and coupled into the second waveguide branch (57).

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