Reduction of noise using coherent light-source squeezing
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United States of America Patent
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May 29, 2018
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app pub date -
May 15, 2014
filing date -
May 15, 2014
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Abstract
An optical imaging system includes a coherent light generator, imaging optics and a detection system. The coherent light generator is configured to generate squeezed light. The imaging optics is arranged to direct the squeezed light from the coherent light generator onto a target object and to receive squeezed light reflected by the target object. The detection system includes a local oscillator configured to generate un-squeezed light at a same frequency and phase as the squeezed light, a combiner arranged to combine the received squeezed light from the imaging optics and the un-squeezed light from the local oscillator to provide combined light, and a detector arranged to receive and detect the combined light.
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