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High-power supercontinuum generation in a nested linear cavity involving a CW Raman fiber laser

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6 Author(s)
M. Feng ; Inst. of Phys., Nankai Univ., Tianjin, China ; Y. G. Li ; J. Li ; J. F. Li
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We construct a novel nested linear cavity configuration to generate supercontinuum (SC) under continuous-wave pump. With this structure, stimulated Raman scattering and four-wave mixing can affect the whole region of the SC spectrum while the pump line is removed outside of the continuum, and a symmetrical spectrum can be obtained. The properties of the structure are demonstrated by using 3.5-km single-mode fiber, and an SC centered at 1315 nm with the bandwith of 102 nm and the output power of 1.3 W is achieved. By tuning the feedback fiber Bragg grating, we can easily adjust the spectral shape of SC to fit different requirement.

Published in:

IEEE Photonics Technology Letters  (Volume:17 ,  Issue: 6 )