Generation of pulsed and continuous-wave squeezed light with ${}^{87}$Rb vapor

Abstract

We present experimental studies on the generation of pulsed and continuous-wave squeezed vacuum via nonlinear rotation of the polarization ellipse in a ${}^{87}$Rb vapor. Squeezing is observed for a wide range of input powers and pump detunings on the D1 line, while only excess noise is present on the D2 line. The maximum continuous-wave squeezing observed is -$1.4\pm 0.1$ dB (-2.0 dB corrected for losses). We measure -1.1 dB squeezing at the resonance frequency of the ${}^{85}$Rb $F=3\to F^{\prime }$ transition, which may allow the storage of squeezed light generated by ${}^{87}$Rb in a ${}^{85}$Rb quantum memory. Using a pulsed pump, pulsed squeezed light with -1 dB of squeezing for 200 ns pulse widths is observed at 1 MHz repetition rate.

9 pages, 5 figures

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Cited by in corpus (21)

• Enhancing quantum entanglement for continuous variables by a coherent superposition of photon subtraction and addition
• Quantum Enhanced Magnetometer with Low-Frequency Squeezing
• Ultra-Narrow Faraday Rotation Filter at the Rb D1 Line
• Polarization squeezing of light by single passage through an atomic vapor
• Generation of ${}^{87}$Rb-resonant bright two-mode squeezed light with four-wave mixing
• Generation of pulsed bipartite entanglement using four-wave mixing
• Spatial Multi-Mode Structure of Atom-Generated Squeezed Light
• Excess optical quantum noise in atomic sensors
• Polarization Self-rotation in Ultracold Atomic Rb
• Spatial multiplexing of squeezed light by coherence diffusion
• Quantum-Limited Squeezed Light Detection with a Camera
• Quantum Noise for Faraday Light Matter Interfaces
• Multi-pass configuration for Improved Squeezed Vacuum Generation in Hot Rb Vapor
• All-atomic source of squeezed vacuum with full pulse-shape control
• All-atomic generation and noise-quadrature filtering of squeezed vacuum in hot Rb vapor
• Quantized Nonlinear Gaussian-Beam Dynamics $-$ Tailoring Multimode Squeezed-Light Generation
• Quadrature noise in light propagating through a cold 87Rb atomic gas
• Optimal Signal Recovery for Pulsed Balanced Detection
• Experimental characterization of the Gaussian state of squeezed light obtained via single-passage through an atomic vapor
• Optimized experimental optical tomography of quantum states of room-temperature alkali-metal vapor
• Propagation of a squeezed optical field in a medium with superluminal group velocity