Matched cascade of bandgap-shift and frequency-conversion using stimulated Raman scattering in a tapered hollow-core photonic crystal fibre
Beaudou, B., Couny, F., Wang, Y. Y., Light, P. S., Wheeler, N. V., Gerome, F. and Benabid, F., 2010. Matched cascade of bandgap-shift and frequency-conversion using stimulated Raman scattering in a tapered hollow-core photonic crystal fibre. Optics Express, 18 (12), pp. 12381-12390.
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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.
|Creators||Beaudou, B., Couny, F., Wang, Y. Y., Light, P. S., Wheeler, N. V., Gerome, F. and Benabid, F.|
|Departments||Faculty of Science > Physics|
|Research Centres||Centre for Photonics and Photonic Materials|
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