Journal
OPTICS EXPRESS
Volume 17, Issue 20, Pages 17909-17915Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.17.017909
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Funding
- British Engineering and Physical Sciences Research Council [EP/E015646/1]
- Spanish Ministry of Science and Innovation [TEC2008-05791]
- Engineering and Physical Sciences Research Council [EP/E015646/1] Funding Source: researchfish
- EPSRC [EP/E015646/1] Funding Source: UKRI
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Supercontinuum generation in a multi-fiber ultra-long Raman fiber laser cavity is experimentally investigated for the first time. We demonstrate significantly enhanced spectral flatness and supercontinuum generation efficiency using only conventional single mode silica fiber. With a pump power of only 1.63W a similar to 15dB bandwidth > 260 nm wide (from 1440 to > 1700nm) supercontinuum source is reported with a flatness of < 1dB over 180nm using an optimised hybrid TW/HNLF cavity. We address the dependence of the supercontinuum spectrum on the input pump power and ultra-long Raman cavity. (C) 2009 Optical Society of America
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