Nonlinear pulse compression by the second-harmonic generation in quasiphase and group-velocity matched samples

Nonlinear pulse compression by the second-harmonic generation in quasiphase and group-velocity matched samples

We investigate numerically the second-harmonic generation from near infrared 100 fs pulses in periodically and aperiodically poled lithium niobate crystals, taking into account the group-velocity mismatch, the group-velocity dispersion, and self-action effects. For the first time, we show that a ten...

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Veröffentlicht in:Journal of Russian laser research 2011-01, Vol.32 (1), p.41-46
Hauptverfasser: Sapaev, U. K., Kulagin, I. A., Usmanov, T., Assanto, G.
Format: Artikel
Sprache:eng
Schlagworte:
Compressing
Crystals
Dispersions
Infrared
Lasers
Microwaves
Nonlinearity
Optical Devices
Optics
Photonics
Physics
Physics and Astronomy
Pulse compression
Quality factor
RF and Optical Engineering
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Zusammenfassung:We investigate numerically the second-harmonic generation from near infrared 100 fs pulses in periodically and aperiodically poled lithium niobate crystals, taking into account the group-velocity mismatch, the group-velocity dispersion, and self-action effects. For the first time, we show that a tenfold pulse compression can be obtained at both fundamental and second-harmonic frequencies. The mechanism of compression and the pertinent quality factors are discussed.
ISSN:1071-2836
1573-8760
DOI:10.1007/s10946-011-9187-1