Sub-shot-noise heterodyne polarimetry.
نویسندگان
چکیده
We report an experimental demonstration of a heterodyne polarization rotation measurement with a noise floor 4.8 dB below the optical shot noise by use of classically phase-locked quantum twin beams emitted above threshold by an ultrastable type II Na:KTP cw optical parametric oscillator. We believe that this is the largest noise reduction achieved to date in optical phase-difference measurements.
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عنوان ژورنال:
- Optics letters
دوره 29 23 شماره
صفحات -
تاریخ انتشار 2004