System and method for optical signal quadrature separation
AssigneeVencore Labs, Inc.
InventorsColin McKinstrie, Anjali Agarwal
Life of this patent
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Abstract
A system and method for separating signal quadratures includes obtaining, by a parametric amplifier, an input signal, amplifying, by the parametric amplifier, the input signal to create an amplified signal and generating an idler. The idler is a conjugate image of the input signal. The system and method also include obtaining, by a frequency converter, the amplified signal and the conjugate image and converting the amplified signal and the conjugate image into a first output and a second output, where the first output includes a first signal quadrature and the second output includes a second output quadrature.
Claims18
A method for separating signal quadratures comprising:
- obtaining, by a parametric amplifier, an input signal;
- amplifying, by the parametric amplifier, the input signal to create an amplified signal, generating, by the parametric amplifier, an idler comprising a conjugate image of the input signal;
- obtaining, by a pump filter, from the parametric amplifier, the amplified signal and the conjugate image;
- filtering out, by the pump filter, an optical pump from the amplified signal and the conjugate image;
- supplying, by the pump filter, the amplified signal and the conjugate image to a frequency converter;
- and
- obtaining, by the frequency converter, the amplified signal and the conjugate image, and converting the amplified signal and the conjugate image into a first output and a second output, wherein the first output comprises a first output signal quadrature and the second output comprises a second output signal quadrature.
A system for separating signal quadratures comprising:
- a parametric amplifier to obtain an input signal and to amplify the input signal to generate an amplified signal and an idler comprising a conjugate image of the input signal;
- a frequency converter, coupled to the parametric amplifier, to obtain the amplified signal and the conjugate image from the parametric amplifier and to convert the amplified signal and the conjugate image into a first output and a second output, wherein the first output comprises a first signal quadrature and the second output comprises a second signal quadrature;
- and
- a pump filter, coupled to the parametric amplifier and the frequency converter, to obtain the amplified signal and the conjugate image from the parametric amplifier, to filter an optical pump from the amplifier signal and the conjugate image, and to supply the amplified signal and the conjugate image to the frequency converter.
Dependencies are inferred from the claim text.