Wavelength and intensity monitoring of optical cavity
First Claim
1. A device for measuring optical fine structure of lateral modes of an optical cavity, the device comprising:
- at least one photodetector arranged to detect an output of the optical cavity in a lateral direction thereof;
an analyzer coupled to an output of the at least one photodetector and arranged to analyze at least a portion of signals produced in the at least one photodetector by at least a portion of the lateral modes of the optical cavity; and
a processor arranged to determine the optical fine structure of the at least the portion of the lateral modes of the optical cavity based on an output of the analyzer.
1 Assignment
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Accused Products
Abstract
According to various illustrative embodiments, a device, method, and system for measuring optical fine structure of lateral modes of an optical cavity are described. In one aspect, the device comprises at least one photodetector arranged to detect an output of the optical cavity in a lateral direction thereof. The device also comprises an analyzer coupled to an output of the at least one photodetector and arranged to analyze at least a portion of signals produced in the at least one photodetector by at least a portion of the lateral modes of the optical cavity. The device also comprises a processor arranged to determine the optical fine structure of the at least the portion of the lateral modes of the optical cavity based on an output of the analyzer.
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Citations
29 Claims
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1. A device for measuring optical fine structure of lateral modes of an optical cavity, the device comprising:
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at least one photodetector arranged to detect an output of the optical cavity in a lateral direction thereof; an analyzer coupled to an output of the at least one photodetector and arranged to analyze at least a portion of signals produced in the at least one photodetector by at least a portion of the lateral modes of the optical cavity; and a processor arranged to determine the optical fine structure of the at least the portion of the lateral modes of the optical cavity based on an output of the analyzer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method for measuring optical fine structure of lateral modes of an optical cavity, the method comprising:
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detecting an output of the optical cavity in a lateral direction thereof using at least one photodetector; analyzing at least a portion of signals produced in the at least one photodetector by at least a portion of the lateral modes of the optical cavity using an analyzer coupled to an output of the at least one photodetector; and determining the optical fine structure of the at least the portion of the lateral modes of the optical cavity based on an output of the analyzer using a processor. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A system for measuring optical fine structure of lateral modes of an optical cavity, the system comprising:
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at least one photodetector on the optical cavity at an end portion thereof, the at least one photodetector arranged to detect an output of the optical cavity in a lateral direction thereof using a first radio frequency switch; a radio frequency spectrum analyzer coupled to an output of the at least one photodetector and arranged to analyze at least a portion of radio frequency beat frequencies produced in the at least one photodetector by at least a portion of the lateral modes of the optical cavity; and a processor arranged to determine the optical fine structure of the at least the portion of the lateral modes of the optical cavity based on an output of the radio frequency spectrum analyzer and to provide mode-stabilization retroactive feedback to the at least one photodetector using a second radio frequency switch. - View Dependent Claims (29)
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Specification