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Hannover 2016 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 1: Precision Measurements and Metrology I (with A)

Q 1.2: Talk

Monday, February 29, 2016, 11:15–11:30, a310

Squeezed light and self-induced transparency in mercury-filled hollow core photonic crystal fibers — •Ulrich Vogl1,2, Nicolas Y. Joly1,2, Philip St.J. Russell1,2, Christoph Marquardt1,2, and Gerd Leuchs1,21Max Planck Institute for the Science of Light, 91058 Erlangen, Germany — 2University Erlangen-Nuremberg, Erlangen, Germany

We recently demonstrated that the use of atomic mercury vapour allows greatly improved loading of an atomic gas into hollow core photonic crystal fibres (PCFs), leading to high and constant vapour pressure in the fibre core [1]. The kagomé-PCFs used guide light not by the photonic band gap effect, but by a two-dimensional version of anti-resonant reflection, and offer much broader windows of transmission, typically over 1000 nm. The generation of squeezed states of light, using pulses that fulfil the self-induced transparency (SIT) condition, was proposed in 1989 [2]. We successfully demonstrate SIT of optical pulses in the mercury-filled PCF system and its use in the generation of squeezed states of light. In the first experiments we observed squeezing below the shot noise limit upon launching short nanosecond pulses into the fibre and using a measurement in direct difference detection. Future prospects include phase-sensitive detection of SIT solitons with temporally shaped local oscillator forms to investigate the phase and number uncertainty of the generated states.
U. Vogl, Ch. Peuntinger, N. Y. Joly, P. St.J. Russell, Ch. Marquardt, and G. Leuchs. Optics Express 22, 29375 (2014).
K. Watanabe, et. al. Phys. Rev. Lett. 62, 2257 (1989).

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