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arXiv · 0901.0371

Generation and Direct Detection of Broadband Mesoscopic Polarization-Squeezed Vacuum

T. Sh. Iskhakov·M. V. Chekhova·G. Leuchs
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Abstract

Using a traveling-wave OPA with two orthogonally oriented type-I BBO crystals pumped by picosecond pulses, we generate vertically and horizontally polarized squeezed vacuum states within a broad range of wavelengths and angles. Depending on the phase between these states, fluctuations in one or another Stokes parameters are suppressed below the shot-noise limit. Due to the large number of photon pairs produced, no local oscillator is required, and 3dB squeezing is observed by means of direct detection.

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T. Sh. Iskhakov, M. V. Chekhova, G. Leuchs. 2009-01-04. Generation and Direct Detection of Broadband Mesoscopic Polarization-Squeezed Vacuum. https://doi.org/10.1103/physrevlett.102.183602

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