Squeezed light generated by CPT-enabled phase sensitive amplification (Conference Presentation)

Fabien Bretenaker; Pascal Neveu; Joseph Delpy; Chitram Banerjee; Jasleen Lugani; Etienne Brion; Fabienne Goldfarb

doi:10.1117/12.2545552

10 March 2020 Squeezed light generated by CPT-enabled phase sensitive amplification (Conference Presentation)

Fabien Bretenaker, Pascal Neveu, Joseph Delpy, Chitram Banerjee, Jasleen Lugani, Etienne Brion, Fabienne Goldfarb

Proceedings Volume 11288, Quantum Sensing and Nano Electronics and Photonics XVII; 112881D (2020) https://doi.org/10.1117/12.2545552
Event: SPIE OPTO, 2020, San Francisco, California, United States

Abstract

The minimum resolvable signal in optical metrology and sensing applications is usually limited by the so-called standard quantum limit. One way to improve the signal-to-noise ratio is to use squeezed states of light. Squeezed light can be generated using different types of nonlinear interactions either in solid-state nonlinear crystals or in atomic systems. One way to generate squeezed light is to use a phase sensitive amplifier that will amplify one quadrature of the considered mode and deamplify the other one. We have recently shown that metastable helium vapor at room temperature can exhibit strong four-wave mixing effects and behave like a perfect phase sensitive amplifier when it is prepared in coherent population trapping situation. In this talk, we will present the application of this phase sensitive amplification to the generation of squeezed vacuum states of light and detail the performances and limitations of the system

Conference Presentation

Citation Download Citation

Fabien Bretenaker, Pascal Neveu, Joseph Delpy, Chitram Banerjee, Jasleen Lugani, Etienne Brion, and Fabienne Goldfarb "Squeezed light generated by CPT-enabled phase sensitive amplification (Conference Presentation)", Proc. SPIE 11288, Quantum Sensing and Nano Electronics and Photonics XVII, 112881D (10 March 2020); https://doi.org/10.1117/12.2545552

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KEYWORDS

Optical amplifiers

Complex systems

Four wave mixing

Helium

Nonlinear crystals

Optical metrology

Optical sensing

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