Polarization-Tailored Raman Frequency Conversion in Chiral Gas-Filled Hollow-Core Photonic Crystal Fibers

Journal article


Publication Details

Author(s): Davtyan S, Novoa D, Chen Y, Frosz MH, Russell PSJ
Journal: Physical Review Letters
Publication year: 2019
Volume: 122
Journal issue: 14
ISSN: 0031-9007
eISSN: 1079-7114


Abstract

Broadband-tunable sources of circularly polarized light are crucial in fields such as laser science, biomedicine, and spectroscopy. Conventional sources rely on nonlinear wavelength conversion and polarization control using standard optical components and are limited by the availability of suitably transparent crystals and glasses. Although a gas-filled hollow-core photonic crystal fiber provides pressure-tunable dispersion, long well-controlled optical path lengths, and high Raman conversion efficiency, it is unable to preserve a circular polarization state, typically exhibiting weak linear birefringence. Here we report a revolutionary approach based on a helically twisted hollow-core photonic crystal fiber, which displays circular birefringence, thus robustly maintaining a circular polarization state against external perturbations. This makes it possible to generate pure circularly polarized Stokes and anti-Stokes signals by rotational Raman scattering in hydrogen. The polarization state of the frequency-shifted Raman bands can be continuously varied by tuning the gas pressure in the vicinity of the gain-suppression point. The results pave the way to a new generation of compact and efficient fiber-based sources of broadband light with a fully controllable polarization state.


FAU Authors / FAU Editors

Russell, Philip St John Prof.
Lehrstuhl für Experimentalphysik (Alfried Krupp von Bohlen und Halbach-Professur)


External institutions with authors

Max-Planck-Institut für die Physik des Lichts (MPL) / Max Planck Institute for the Science of Light


How to cite

APA:
Davtyan, S., Novoa, D., Chen, Y., Frosz, M.H., & Russell, P.S.J. (2019). Polarization-Tailored Raman Frequency Conversion in Chiral Gas-Filled Hollow-Core Photonic Crystal Fibers. Physical Review Letters, 122(14). https://dx.doi.org/10.1103/PhysRevLett.122.143902

MLA:
Davtyan, S., et al. "Polarization-Tailored Raman Frequency Conversion in Chiral Gas-Filled Hollow-Core Photonic Crystal Fibers." Physical Review Letters 122.14 (2019).

BibTeX: 

Last updated on 2019-09-09 at 14:10