Integrated structure for bi-directional optical fiber transmissi

Details Integrated structure for bi-directional optical fiber transmissi Integrated structure for bi-directional optical fiber transmissi

1985-12-23

1988-03-08

Davie, James W.

Coherent light generators

Particular active media

Semiconductor

350 9615, 350 9619, 357 19, 372 96, H01S 319, H01L 3112, G02B 626

Patent

active

047303301

ABSTRACT:
An integrated structure for bi-directional optical fiber transmission has a laser diode, a photodetector, and a bi-directional optical waveguide integrated on a common substrate, the waveguide guiding radiation from the laser diode out of the structure and directing incoming radiation of a different wavelength through the structure to the photodetector. The structure also includes a passive optical component cooperating with the strip waveguide for substantially isolating the radiation propagated in one direction in the waveguide from the laser diode, and substantially isolating the radiation propagated in the opposite direction in the waveguide from the photodetector. A method for manufacturing this structure includes essentially growing two epitaxial multi-layer structures spaced from each other and covering selected portions of the substrate constituting the laser diode and the photodetector, with the strip waveguide extending therebetween.

REFERENCES:
patent: 4136928 (1979-01-01), Logan et al.
Shams et al., "Monolithic Integration of LOC-DBR Lasers and Optical Components", Meeting of Integrated and Guided Wave Optics, Jan. 16-18, 1978, pp. MDS-1-4.
"A Frequency-Multiplexing Light Source with Monolithically Integrated Distributed-Feedback Diode Lasers", Aiki et al., IEEE Journal of Quantum Electronics, vol. QE-13, No. 4, Apr. 1977.

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