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  • Title: High efficiency supercontinuum generation using ultra-long Raman fiber cavities.
    Author: El-Taher AE, Ania-Castañón JD, Karalekas V, Harper P.
    Journal: Opt Express; 2009 Sep 28; 17(20):17909-15. PubMed ID: 19907579.
    Abstract:
    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 approximately 15 dB bandwidth >260 nm wide (from 1440 to >1700 nm) supercontinuum source is reported with a flatness of <1 dB over 180 nm 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.
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