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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 26, Iss. 12 — Jun. 15, 2001
  • pp: 935–937

Generation of high-energy femtosecond pulses in multimode-core Yb-fiber chirped-pulse amplification systems

A. Galvanauskas, G. C. Cho, A. Hariharan, M. E. Fermann, and D. Harter  »View Author Affiliations


Optics Letters, Vol. 26, Issue 12, pp. 935-937 (2001)
http://dx.doi.org/10.1364/OL.26.000935


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Abstract

220-fs pulses with energies of ~100µJ have been generated by use of two different configurations of diode-pumped Yb-fiber chirped-pulse amplification systems. Energy scaling was demonstrated with 25-µm -core diameter fibers, in which stable diffraction-limited output (M2~1.1) was achieved. A two-stage fiber-amplifier system produced average powers of up to 5.5 W at ~1- MHz pulse-repetition rate. A double-pass configuration provided 53-dB gain in a single Yb-fiber amplifier stage, thus eliminating the necessity for multiple amplification stages as well as the need for using polarization-preserving fibers.

© 2001 Optical Society of America

OCIS Codes
(170.6920) Medical optics and biotechnology : Time-resolved imaging
(170.7160) Medical optics and biotechnology : Ultrafast technology
(180.2520) Microscopy : Fluorescence microscopy

Citation
A. Galvanauskas, G. C. Cho, A. Hariharan, M. E. Fermann, and D. Harter, "Generation of high-energy femtosecond pulses in multimode-core Yb-fiber chirped-pulse amplification systems," Opt. Lett. 26, 935-937 (2001)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-26-12-935

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