Hannover 2016 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 1: Precision Measurements and Metrology I (with Q)
A 1.2: Vortrag
Montag, 29. Februar 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 Leuchs1,2 — 1Max 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).