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

Imad H. Agha (1) , Christina Giarmatzi (1) , Quentin Glorieux (2) , Thomas Coudreau (2) , Philippe Grangier (1) , Gaëtan Messin (1)

1 Laboratoire Charles Fabry de l'Institut d'Optique / Optique quantique
2 MPQ (UMR_7162) - Laboratoire Matériaux et Phénomènes Quantiques

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).

Domains: Quantum Physics [quant-ph]

Imad H. Agha, Christina Giarmatzi, Quentin Glorieux, Thomas Coudreau, Philippe Grangier, et al.. Time-resolved detection of relative intensity squeezed nanosecond pulses in a Rb87 vapor. New Journal of Physics, 2011, 13 (4), pp.043030. ⟨10.1088/1367-2630/13/4/043030⟩. ⟨hal-00566399⟩