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European Quantum Electronics Conference (EQEC)

Squeezed light and self-induced transparency in mercury-filled hollow core photonic crystal fibers

Ulrich Vogl, Nicolas Y. Joly, Philip St.J. Russell, Christoph Marquardt, Gerd Leuchs

Published Jun 21, 2015• 1 citation
OpenAlex

Abstract

We successfully demonstrate squeezing of nanosecond pulses via self-induced transparency in a system of mercury vapor confined in a hollow core kagome-style fiber.

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We investigate the squeezing of ultrashort pulses using self-induced transparency in a mercury-filled hollow-core photonic crystal fiber. Our focus is on quadrature squeezing at low mercury vapor pressures, with atoms near resonance on the 3 D 3 →6 3 P 2 transition. We vary the atomic density, and thus the gas pressure (from 2.72 to 15.7 µbar), by adjusting the temperature (from 273 to 303 K). Our results show that achieving squeezing at room temperature, considering both fermionic and bosonic mercury isotopes, requires ultrashort femtosecond pulses. We also determine the optimal detection length for squeezing at different pressures and temperatures.
Get PDF Email Share Share with Facebook Tweet This Post on reddit Share with LinkedIn Add to CiteULike Add to Mendeley Add to BibSonomy Get Citation Copy Citation Text U. Vogl, F. Sedlmeir, N. Y. Joly, C. Marquardt, and G. Leuchs, "Generation of non-classical light via self-induced transparency in mercury-filled hollow core photonic crystal fibers," in Frontiers in Optics 2016, OSA Technical Digest (online) (Optica Publishing Group, 2016), paper FW5F.4. Export Citation BibTex Endnote (RIS) HTML Plain Text Citation alert Save article
There is great interest in photonic crystal fibers (PCFs) because of their potential for hosting highly nonlinear material. Already with material of low nonlinearity such as silica for solid core PCFs, the nonlinear properties can be utilized since high intensities of light are guided within the core. To create squeezed states, we plan to exploit the high nonlinearity of resonant Rb vapor filled in the hollow fiber core and to use self-induced transparency (SIT) solitons to avoid resonant loss. High nonlinearity is induced from the self-phase modulation of a detuned 2pi soliton. Photon-phonon interactions, which cause a significant amount of excess noise in solid core fibers, will be highly reduced in our system.