Monolithic integration of signal-monitoring scheme in an optical switch
First Claim
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1. An integrated optical device comprising:
- a light-transmissive substrate;
an opto-electronic device formed on the substrate; and
a micro-lens formed on the substrate, wherein the opto-electronic device lies between the micro-lens and a focal plane of the micro-lens and allows light to focus at a point beyond the opto-electronic device.
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Abstract
An integrated device includes a micro-lens and an opto-electronic device can be formed on a single substrate. The opto-electronic device may be one or more photodetectors and the micro-lens may be shaped to allow partial absorption of light incident to the micro-lens by the photodetectors. The integrated device is capable of simultaneously performing position detection, signal monitoring, and focusing/collimation.
39 Citations
23 Claims
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1. An integrated optical device comprising:
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a light-transmissive substrate;
an opto-electronic device formed on the substrate; and
a micro-lens formed on the substrate, wherein the opto-electronic device lies between the micro-lens and a focal plane of the micro-lens and allows light to focus at a point beyond the opto-electronic device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An optical device comprising:
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an integrated optical device including a light transmissive substrate, a micro-lens formed on a first side of said substrate, and at least one photodetector formed on a second side of said substrate, the second side of the substrate being opposite the first side; and
a receiving optical fiber, wherein said micro-lens focuses an incident light beam into a core of said receiving optical fiber such that a portion of the incident light beam is absorbed by said at least one photodetector. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. A method for manufacturing an integrated optical device, comprising:
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forming at least one opto-electronic device on a first side of a substrate; and
forming a micro-lens on a second side of said substrate opposite the first side, wherein the opto-electronic device lies between the micro-lens and a focal plane of the micro-lens and allows light to focus at a point beyond the opto-electronic device. - View Dependent Claims (20, 21, 22, 23)
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Specification