Journal
OPTICS LETTERS
Volume 44, Issue 19, Pages 4630-4633Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.44.004630
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- Air Force Office of Scientific Research [FA9550-15-1-0402]
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Squeezed states of light have received renewed attention due to their applicability to quantum-enhanced sensing. To take full advantage of their reduced noise properties to enhance atomic-based sensors, it is necessary to generate narrowband near or on atomic resonance single-mode squeezed states of light. We have previously generated bright two-mode squeezed states of light, or twin beams, that can be tuned to resonance with the D1 line of Rb-87 with a non-degenerate four-wave-mixing process in a double-lambda configuration in a Rb-85 vapor cell. Here, we report on the use of feedforward to transfer the amplitude quantum correlations present in the twin beams to a single beam for the generation of single-mode amplitude squeezed light. With this technique, we obtain a single-mode squeezed state with -2.9 +/- 0.1 dB of squeezing when tuned off resonance and -2.0 +/- 0.1 dB when tuned on resonance with the D1 F = 2 to F' = 2 transition of Rb-87. (C) 2019 Optical Society of America
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