Journal
LASER PHYSICS LETTERS
Volume 11, Issue 8, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1612-2011/11/8/085108
Keywords
mode-locked fiber lasers; Raman solitons; optical supercontinuum; mid-infrared lasers
Categories
Funding
- Norwegian NFR [FRITEK/191614]
- MARTEC
- European GRAPHENICS
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We report a simple method of generating a spectrally flat and high average power spectral density (up to 14 mW/nm) optical supercontinuum in the 1.95-2.5 mu m range covering a transparency window of the atmosphere. The supercontinuum was generated from the Tm-doped all-fiber MOPA lasers. The average output power of the picosecond linear-cavity SESAM mode-locked seed lasers operating at 46 and 77 MHz was as low as 6.7 and 2.6 mW, respectively. The corresponding one-stage silica-based fiber amplifier generated a supercontinuum with 5.06 and 6.83 W average power, 550 and 500 nm bandwidths at -10 dB level, and 5 and 8 dB spectral flatness, respectively.
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