Cross-phase-modulation-induced instabilities and frequency shifts in a photonic-crystal fiber

Copropagating fundamental-wavelength and second-harmonic femtosecond pulses of Cr: forsterite laser radiation are used to study cross-phase-modulation-induced instabilities and frequency shifts in a photonic-crystal fiber. Parametric instability of the second-harmonic probe pulse induced through cro...

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Bibliographic Details
Published in:Applied physics. B, Lasers and optics Lasers and optics, 2005-04, Vol.80 (4-5), p.437-439
Main Authors: Konorov, S. O., Akimov, D. A., Ivanov, A. A., Alfimov, M. V., Dukel’skii, K. V., Khokhlov, A. V., Shevandin, V. S., Kondrat’ev, Yu. N., Zheltikov, A. M.
Format: Article
Language:English
Subjects:
Crystal fibers
Frequency shift
Instability
Lasers
Pumps
Sidebands
Spectra
Stability
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Summary:Copropagating fundamental-wavelength and second-harmonic femtosecond pulses of Cr: forsterite laser radiation are used to study cross-phase-modulation-induced instabilities and frequency shifts in a photonic-crystal fiber. Parametric instability of the second-harmonic probe pulse induced through cross-phase modulation by the fundamental-wavelength pump pulse gives rise to distinct sidebands in the spectrum of the probe field transmitted through the fiber. The wavelength of these sidebands was tuned in our experiments within approximately 100 nm by varying the peak power and the delay time of the pump pulse, suggesting a convenient way of controlled parametric spectral transformation of ultrashort laser pulses.
ISSN:0946-2171
1432-0649
DOI:10.1007/s00340-004-1725-x