Temperature effects on supercontinuum generation using a continuous-wave Raman fiber laser |
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Authors: | S. Martin-Lopez M. Gonzalez-Herraez P. Corredera A. Carrasco |
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Affiliation: | a Departamento de Metrologia, Instituto de Fisica Aplicada-CSIC, Serrano 144, 28006 Madrid, Spain b Departamento de Electronica, Escuela Politecnica Superior, Universidad de Alcala, Campus Universitario, 28871 Alcala de Henares, Madrid, Spain |
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Abstract: | We describe the effect of temperature variations on supercontinuum (SC) generation in optical fibers using a continuous-wave (CW) Raman fiber laser as a pump. We achieve supercontinuum generation by pumping only ∼2 W of power into a 7 km-long nonzero dispersion-shifted fiber (NZDSF) in the region of small anomalous dispersion. In these conditions, the supercontinuum builds up basically on modulational instability and Raman. At room temperature, the supercontinuum covers effectively the S, C and L transmission bands defined by the International Telecommunication Union (ITU). Temperature tuning of the fiber environment provides a means of tuning the fiber dispersion, and thus a means of changing the width and shape of the supercontinuum spectrum. We demonstrate a 27% increase in the 10-dB SC width. We believe that the application of this new tuning mechanism to other experimental configurations using pulsed sources might be used to produce extremely broad supercontinuums. |
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Keywords: | 42.65.Dr 42.79.Sz 42.81.Dp 42.72.Ai |
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