Time-resolved detection of relative intensity squeezed nanosecond pulses in a Rb87 vapor

TL;DR

This paper demonstrates the generation and measurement of nanosecond pulsed relative-intensity squeezed light in Rb87 vapor, achieving about -1 dB of squeezing at 50 ns pulse duration and 1 MHz repetition rate.

Contribution

It provides both theoretical predictions and experimental validation of time-resolved intensity squeezing in a hot Rb87 vapor using four-wave mixing.

Findings

Achieved -1 dB of relative intensity squeezing with 50 ns pulses.

Demonstrated time-resolved detection of pulsed squeezed light.

Validated theoretical models with experimental data.

Abstract

We present theoretical and experimental results on the generation and detection of pulsed, relative-intensity squeezed light in a hot Rb87 vapor. The intensity noise correlations between a pulsed probe beam and its conjugate, generated through nearly-degenerate four-wave mixing in a double-lambda system, are studied numerically and measured experimentally via time-resolved balanced detection. We predict and observe about -1 dB of time-resolved relative intensity squeezing with 50 nanosecond pulses at 1 MHz repetition rate. (-1.34 dB corrected for loss).