Open AccessMatched cascade of bandgap-shift and frequency-conversion using stimulated Raman scattering in a tapered hollow-core photonic crystal fibre
Author(s) -
Benoît Beaudou,
F. Couny,
Xiaocong Wang,
P.S. Light,
Natalie V. Wheeler,
F. Gérôme,
Fetah Benabid
Publication year - 2010
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.18.012381
Subject(s) - materials science , photonic crystal fiber , photonic crystal , raman scattering , optics , raman spectroscopy , optoelectronics , laser , bandwidth (computing) , photonics , core (optical fiber) , optical fiber , fiber laser , telecommunications , physics , wavelength , computer science
We report on a novel means which lifts the restriction of the limited optical bandwidth of photonic bandgap hollow-core photonic crystal fiber on generating high order stimulated Raman scattering in gaseous media. This is based on H(2)-filled tapered HC-PCF in which the taper slope is matched with the effective length of Raman process. Raman orders outside the input-bandwidth of the HC-PCF are observed with more than 80% quantum-conversion using a compact, low-power 1064 nm microchip laser. The technique opens prospects for efficient sources in spectral regions that are poorly covered by currently existing lasers such as mid-IR.