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Opt Express. 2010 Feb 15;18(4):3768-73. doi: 10.1364/OE.18.003768.

A stretcher fiber for use in fs chirped pulse Yb amplifiers.

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  • 1OFS Denmark, Priorparken 680, 2605 Brøndby, Denmark.


A newly developed fiber for use in pulse stretchers for chirped pulse amplifiers working in the 1 mum wavelength range of Yb fiber amplifiers is reported. The fiber has a record high numerical third order to second order dispersion beta(3)/beta(2) ratio of -7.7 fs. The fiber has very good dispersion match to a grating compressor for second, third, and fourth order dispersion. By combining the stretcher fiber with an anomalous dispersion fiber working in a higher order mode, even higher beta(3)/beta(2) ratio of -16.8 fs is demonstrated. The combined module shows very good dispersion match to a grating compressor.

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