INTEGRATED OPTOELECTRONIC SYSTEM FOR AUTOMATIC CALIBRATION OF AN OPTICAL DEVICE
First Claim
1. An integrated optoelectronic system, comprising:
- input and output optical waveguides;
a tunable optical device coupled to the input and output optical waveguides, the tunable optical device having one or more tuning elements for varying one or more characteristics of the tunable optical device;
an optical source coupled to the input waveguide for providing a calibration signal to the tunable optical device;
an optical detector coupled to the output optical waveguide for measuring an intensity of the optical signal output by the tunable optical device in response to receiving the calibration signal; and
an electronic controller coupled to the optical detector and the one or more tuning elements of the tunable optical device and configured to perform a calibration of the tunable optical device by varying a parameter of each of the one or more tuning elements and to receive intensity measurements of the optical signal output by the device as a function of the varied parameter;
wherein the optical waveguides, the optical device, the optical source, the optical detector and the electronic controller are formed on a single substrate.
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Abstract
An apparatus and method for automated calibration of an optical device are disclosed. The apparatus is an integrated optoelectronic system that includes input and output optical waveguides, a tunable optical device, an optical source, an optical detector, and an electronic controller formed on a single substrate. The tunable optical device has one or more tuning elements for varying one or more characteristics of the device. The optical source is coupled to the input waveguide for providing a calibration signal to the device. The optical detector is coupled to the output optical waveguide for measuring an intensity of the optical signal output by the device in response to receiving the calibration signal. The electronic controller is configured to perform a calibration of the device by varying a parameter of each tuning element and to receive intensity measurements of the optical signal output by the device as a function of the varied parameter.
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Citations
15 Claims
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1. An integrated optoelectronic system, comprising:
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input and output optical waveguides; a tunable optical device coupled to the input and output optical waveguides, the tunable optical device having one or more tuning elements for varying one or more characteristics of the tunable optical device; an optical source coupled to the input waveguide for providing a calibration signal to the tunable optical device; an optical detector coupled to the output optical waveguide for measuring an intensity of the optical signal output by the tunable optical device in response to receiving the calibration signal; and an electronic controller coupled to the optical detector and the one or more tuning elements of the tunable optical device and configured to perform a calibration of the tunable optical device by varying a parameter of each of the one or more tuning elements and to receive intensity measurements of the optical signal output by the device as a function of the varied parameter; wherein the optical waveguides, the optical device, the optical source, the optical detector and the electronic controller are formed on a single substrate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of calibrating a tunable optical device, comprising:
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providing an integrated optoelectronic planar structure comprising a planar substrate, the substrate including input and output optical waveguides, an optical source coupled to the input optical waveguide, an optical detector coupled to the output optical waveguide, and an electronic controller formed thereon;
the optical device having a tuning element for varying a characteristic of the device; andoperating the controller to; (a) provide a calibration signal from the optical source to the input optical waveguide, (b) adjust a parameter of the tuning element to vary the characteristic of the device, and (c) receive measurements of an intensity of an optical signal at the output waveguide as a function of the parameter. - View Dependent Claims (12, 13, 14, 15)
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Specification