Time-resolved detection of relative intensity squeezed nanosecond pulses in a 87Rb vapor

TL;DR

This paper demonstrates the generation and detection of nanosecond pulsed relative-intensity squeezed light in warm rubidium vapor, achieving nearly 1 dB of squeezing at a 1 MHz repetition rate, advancing quantum optics applications.

Contribution

It reports the first experimental observation of time-resolved relative-intensity squeezing in a warm rubidium vapor using pulsed four-wave mixing and balanced detection.

Findings

-0.96 dB of squeezing observed in experiments

Squeezing corrected to -1.34 dB after loss correction

Pulsed squeezing achieved at 50 ns pulse duration and 1 MHz repetition rate

Abstract

We present experimental studies on the generation and detection of pulsed, relative-intensity squeezed light in a warm rubidium vapor. The noise correlations between a pulsed probe beam and its conjugate -generated through nearly-degenerate four-wave mixing in a double-lambda system- are studied via time-resolved balanced detection. We observe -0.96 dB of time-resolved relative intensity squeezing with 50 nanosecond pulses at 1 MHz repetition rate. (-1.34 dB corrected for loss).