Polarization squeezing at the audio frequency band for the Rubidium D1 line
arXiv:1704.03268 · doi:10.1364/OE.25.020737
Abstract
A 2.8-dB polarization squeezing of the Stokes operator S2 for the rubidium D1 line (795 nm) is achieved, with the lowest squeezing band at an audio frequency of 2.6 kHz. Two methods are applied for improving the squeezing towards low frequencies: an orthogonal-polarized locking beam that precludes residual unwanted interference and quantum noise locking method that stabilizes the relative phase between the squeezed vacuum and the local oscillator. The squeezing level is limited by absorption-induced losses at short wavelengths, here is 397.5 nm. The generated polarization squeezed light can be used in a quantum enhanced magnetometer to increase the measurement sensitivity.
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Cited by in corpus (8)
- Quantum-enhanced rubidium atomic magnetometer based on Faraday rotation via 795-nm Stokes operator squeezed light
- Twin-beam intensity-difference squeezing below 10 Hz
- Enhancement of spin noise spectroscopy of rubidium atomic ensemble by using of the polarization squeezed light
- Quantum Polarimetry
- Influence of Laser Intensity Fluctuation on Single-Cesium Atom Trapping Lifetime in a 1064-nm Microscopic Optical Tweezer
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