Publikation: 16 fs, 350 nJ pulses at 5 MHz repetition rate delivered by chirped pulse compression in fibers
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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.
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GANZ, Thomas, Volodymyr PERVAK, Alexander APOLONSKI, Peter BAUM, 2011. 16 fs, 350 nJ pulses at 5 MHz repetition rate delivered by chirped pulse compression in fibers. In: Optics Letters. 2011, 36(7), pp. 1107-1109. ISSN 0146-9592. eISSN 1539-4794. Available under: doi: 10.1364/OL.36.001107BibTex
@article{Ganz2011-04-01pulse-43290,
year={2011},
doi={10.1364/OL.36.001107},
title={16 fs, 350 nJ pulses at 5 MHz repetition rate delivered by chirped pulse compression in fibers},
number={7},
volume={36},
issn={0146-9592},
journal={Optics Letters},
pages={1107--1109},
author={Ganz, Thomas and Pervak, Volodymyr and Apolonski, Alexander and Baum, Peter}
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<dcterms:abstract xml:lang="eng">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.</dcterms:abstract>
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