Integrated structure for bi-directional optical fiber transmission
First Claim
1. In an integrated structure, the combination comprising:
- a substrate;
a laser diode integrated on said substrate;
a photodetector integrated on said substrate;
a bi-directional optical waveguide integrated on said substrate disposed for guiding radiation from said laser diode out of said structure and for directing incoming radiation of a different wavelength through said structure to said photodetector; and
a passive optical device coupled in said integrated structure with said waveguide for substantially isolating said incoming radiation propagated in one direction in said waveguide from said laser diode and substantially isolating radiation emitted by said laser diode propagated in an opposite direction in said waveguide from said photodetector.
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Accused Products
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.
36 Citations
23 Claims
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1. In an integrated structure, the combination comprising:
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a substrate; a laser diode integrated on said substrate; a photodetector integrated on said substrate; a bi-directional optical waveguide integrated on said substrate disposed for guiding radiation from said laser diode out of said structure and for directing incoming radiation of a different wavelength through said structure to said photodetector; and a passive optical device coupled in said integrated structure with said waveguide for substantially isolating said incoming radiation propagated in one direction in said waveguide from said laser diode and substantially isolating radiation emitted by said laser diode propagated in an opposite direction in said waveguide from said photodetector. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification