A stretcher fiber for use in fs chirped pulse Yb amplifiers.
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.
Grüner-Nielsen
Lars
L
OFS Denmark, Priorparken 680, 2605 Brøndby, Denmark. lgruner@ofsoptics.com
Jakobsen
Dan
D
Jespersen
Kim G
KG
Pálsdóttir
Bera
B
D000669:Amplifiers, Electronic; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005336:Fiber Optic Technology / Q000295:instrumentation*; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*