Time-resolved detection of relative intensity squeezed nanosecond pulses   in a Rb87 vapor
  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). 
Imad H. Agha, Christina Giarmatzi, Quentin Glorieux, Thomas Coudreau,   Philippe Grangier, and Gaetan Messin
quant-ph physics.optics