Journal
JOURNAL OF OPTICS
Volume 16, Issue 1, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/2040-8978/16/1/015201
Keywords
Raman amplifier; stimulated Raman scattering; stimulated Brillouin scattering; optical pulses
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Funding
- National Natural Science Foundation of China [11274386]
- Innovation Foundation for graduates of the Hunan Provincial Innovation Foundation for Postgraduates [CX2012B034]
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We report on a narrow linewidth nanosecond all-fiber Raman amplifier core pumped by a pulsed laser at approximately 1030 nm. The Raman amplifier was based on a standard single-mode fiber with a length of similar to 1 km, and stimulated Brillouin scattering (SBS) was suppressed by employing pulses with a short pulse width. 1083 nm pulses with an average power of 32.6 mW, a repetition rate of 2 MHz, and pulse widths of similar to 7.2 ns were achieved. A maximum slope efficiency of 46.1% and a gain of 31 dB were obtained. The output Raman power can be scaled further by using fiber with shorter lengths and pump pulses with a higher power.
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