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Proceedings Paper

Squeezed light generated by CPT-enabled phase sensitive amplification (Conference Presentation)
Author(s): Fabien Bretenaker; Pascal Neveu; Joseph Delpy; Chitram Banerjee; Jasleen Lugani; Etienne Brion; Fabienne Goldfarb

Paper 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

Paper Details

Date Published: 10 March 2020
Proc. SPIE 11288, Quantum Sensing and Nano Electronics and Photonics XVII, 112881D (10 March 2020); doi: 10.1117/12.2545552
Show Author Affiliations
Fabien Bretenaker, Lab. Aimé Cotton (France)
Raman Research Institute (India)
Pascal Neveu, Lab. Aimé Cotton (France)
Joseph Delpy, Lab. Aimé Cotton (France)
Chitram Banerjee, Lab. Aimé Cotton (France)
Jasleen Lugani, Univ. Jena (Germany)
Etienne Brion, Lab. Aimé Cotton (France)
Fabienne Goldfarb, Lab. Aimé Cotton (France)

Published in SPIE Proceedings Vol. 11288:
Quantum Sensing and Nano Electronics and Photonics XVII
Manijeh Razeghi; Jay S. Lewis; Giti A. Khodaparast; Pedram Khalili, Editor(s)

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