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Optics Letters

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  • Vol. 36, Iss. 7 — Apr. 1, 2011
  • pp: 1107–1109

16 fs, 350 nJ pulses at 5 MHz repetition rate delivered by chirped pulse compression in fibers

T. Ganz, V. Pervak, A. Apolonski, and P. Baum  »View Author Affiliations


Optics Letters, Vol. 36, Issue 7, pp. 1107-1109 (2011)
http://dx.doi.org/10.1364/OL.36.001107


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Abstract

We demonstrate a simple approach for broadening and compression of intense pulses at megahertz repetition rates by self-phase modulation in nonlinear photonic crystal fibers. In order to avoid damage by self-focusing, we positively chirp the input pulses, which allows coupling of significantly more energy into the fiber, while maintaining the same spectral bandwidth and compression as compared to the Fourier-limited case at lower energy. Using a commercial long-cavity Ti:sapphire oscillator with 55 fs , 400 nJ pulses at 5 MHz , we generate 16 fs , 350 nJ pulses, which is a factor of 4 more energy than possible with unchirped input pulses. Self-phase-modulated spectra supporting 11 fs duration are also shown with 350 nJ pulse energy. Excellent stability is recorded over at least 1 h .

© 2011 Optical Society of America

OCIS Codes
(140.7090) Lasers and laser optics : Ultrafast lasers
(190.4370) Nonlinear optics : Nonlinear optics, fibers
(320.1590) Ultrafast optics : Chirping
(320.5520) Ultrafast optics : Pulse compression

ToC Category:
Ultrafast Optics

History
Original Manuscript: January 21, 2011
Revised Manuscript: February 15, 2011
Manuscript Accepted: February 18, 2011
Published: March 21, 2011

Citation
T. Ganz, V. Pervak, A. Apolonski, and P. Baum, "16 fs, 350 nJ pulses at 5 MHz repetition rate delivered by chirped pulse compression in fibers," Opt. Lett. 36, 1107-1109 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-7-1107

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