Integrated-optical arrangement for bidirectional optical message

Details Integrated-optical arrangement for bidirectional optical message Integrated-optical arrangement for bidirectional optical message

1988-03-25

1989-08-22

Sikes, William L.

Coherent light generators

Thin film laser

372 50, 350 9612, 350 9617, 350 9619, H01S 319

Patent

active

048602949

ABSTRACT:
An integrated optical arrangement for bidirectional optical message and signal transmission characterized by a common substrate having integrated thereon, a semiconductor laser, an optical detector and a direction selective coupling arrangement which coupling arrangement has a first port coupled to the laser, a second port coupled to the detector and a third port arranged for coupling light in and out of the arrangement with a first wavelength from the laser passing from the first port to the third port and the third port passing a second wavelength to the second port for detection. The arrangement further includes a wavelength selective filter being disposed in a waveguide extending to the second port for blocking light of the first wavelength but being transmissive to light of the second wavelength. The coupling arrangement can either be an optical directional coupler or a y-shaped waveguide fork.

REFERENCES:
patent: 4136928 (1979-01-01), Logan et al.
patent: 4286838 (1981-09-01), Huignard et al.
patent: 4640574 (1987-02-01), Unger
patent: 4730330 (1988-03-01), Plihal et al.
patent: 4760569 (1988-07-01), Mahlein
patent: 4790614 (1988-12-01), Imoto et al.
patent: 4815081 (1989-03-01), Mahlein

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