Article

High power supercontinuum generation in a nonlinear ytterbium-doped fiber amplifier.

College of Optoelectronic Science and Engineering, National University of Defense Technology, Chang Sha, China.
Optics Letters (Impact Factor: 3.18). 05/2012; 37(9):1529-31. DOI: 10.1364/OL.37.001529
Source: PubMed

ABSTRACT High power supercontinuum generation with 70 W average output power in a nonlinear ytterbium-doped fiber amplifier is demonstrated using all-normal dispersion, all-fiber master oscillator power amplifier configuration. The supercontinuum covers from 1064 nm to beyond 1700 nm with spectral flatness better than 12 dB and 67.3% optical to optical conversion efficiency. The almost uniform spectral power density across the whole continuum is more than 70 mW/nm and the nanosecond bursts output have an effective peak power of 82.7 kW.

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