System and method for nonlinear optical devices
First Claim
1. A photodetection system, comprising:
- a cascaded plurality of optical frequency converters coupled to an optical source, each of said plurality of optical frequency converters being configured to sequentially convert a wavelength of photons of said optical source to a final wavelength; and
a single-photon photodetector coupled to said plurality of optical frequency converters to detect single photons produced by said optical source.
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Abstract
Systems for enhancing the sensitivity of detecting an optical signal using nonlinear optics and method of performing the same. In one embodiment, a single-photon detection system includes an optical amplifier realized in a waveguide, and a photodetector coupled to an output of the optical amplifier. A light detection and ranging system includes the optical amplifier coupled to an optical source and one photodetector. In another embodiment, a photodetection system includes a plurality of optical frequency converters, coupled to an optical source, that sequentially convert a wavelength of photons of the optical source to a final wavelength, and a single-photon photodetector coupled to the optical frequency converters to detect single photons produced by the optical source. In another embodiment, an optical sensor includes an optical pump, and a transducer including an optical ring cavity coupled to the optical pump and configured to utilize optical four-wave mixing to detect an external stimulus.
105 Citations
20 Claims
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1. A photodetection system, comprising:
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a cascaded plurality of optical frequency converters coupled to an optical source, each of said plurality of optical frequency converters being configured to sequentially convert a wavelength of photons of said optical source to a final wavelength; and a single-photon photodetector coupled to said plurality of optical frequency converters to detect single photons produced by said optical source. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of operating a photodetection system, comprising:
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coupling a cascaded plurality of optical frequency converters to an optical source, each of said plurality of optical frequency converters being configured to sequentially convert a wavelength of photons of said optical source to a final wavelength; and coupling a single-photon photodetector to said plurality of optical frequency converters to detect single photons produced by said optical source. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification