Method and apparatus for sensing a temperature along an optical path with a grating in semiconductor material
First Claim
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1. An apparatus, comprising:
- an optical path disposed in a material;
a grating disposed in the optical path; and
a thermal probe including an optical sensor optically coupled to the grating to sense a spectral response of the grating, the thermal probe to determine a temperature of the optical path in which the grating is disposed in response to the spectral response of the grating.
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Abstract
A temperature sensing and control method and apparatus. In one aspect of the present invention, an apparatus according to the teachings of the present invention includes an optical path disposed in semiconductor material, a grating disposed in the optical path, and a thermal probe including an optical sensor optically coupled to the grating to sense a spectral response of the grating. The thermal probe is adapted to determine a temperature of the optical path in which the grating is disposed in response to the spectral response of the grating.
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Citations
28 Claims
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1. An apparatus, comprising:
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an optical path disposed in a material;
a grating disposed in the optical path; and
a thermal probe including an optical sensor optically coupled to the grating to sense a spectral response of the grating, the thermal probe to determine a temperature of the optical path in which the grating is disposed in response to the spectral response of the grating. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method, comprising:
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directing an optical beam through an optical path disposed in a material from a grating disposed in the optical path;
sensing a spectral response of the grating in response to the optical beam directed from the grating; and
determining a temperature of the optical path in which the grating is disposed in response to the spectral response of the grating. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. A system, comprising:
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an optical transmitter to transmit an optical beam;
an optical device optically coupled to the optical transmitter to receive the optical beam, the optical device including an optical path disposed in a material;
a grating disposed in the optical path; and
a thermal probe including an optical sensor optically coupled to the grating to sense a spectral response of the grating, the thermal probe to determine a temperature of the optical path in which the grating is disposed in response to the spectral response of the grating; and
an optical receiver optically coupled to the optical device to receive at least a portion of the optical beam. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28)
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Specification