Nonlinear polarization evolution in type I and type II second-harmonic-generation crystals applied to the mode locking of a pulsed Nd : YAG laser

Authors
Louis, S Couderc, V Louradour, F Faugeras, P Barthelemy, A
Citation
S. Louis et al., Nonlinear polarization evolution in type I and type II second-harmonic-generation crystals applied to the mode locking of a pulsed Nd : YAG laser, J OPT A-P A, 3(2), 2001, pp. 139-143
Citations number
18
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Optics & Acoustics
Journal title
JOURNAL OF OPTICS A-PURE AND APPLIED OPTICS
ISSN journal
14644258 → ACNP
Volume
3
Issue
2
Year of publication
2001
Pages
139 - 143
Database
ISI
SICI code
1464-4258(200103)3:2<139:NPEITI>2.0.ZU;2-C
Abstract
We report experimental results on the mode-locked operation of a flash-lamp -pumped Nd:YAG laser using the recently developed technique based on no nl inc ar polarization evolution in a second-harmonic-generation crystal. It i s the first time such a technique has been applied to a pulsed laser. A pul se train with duration close to 25 ps has been produced using two different configurations. One was based on a phase-matched type II crystal (KTP); th e other one used, for the first time, a mismatched type I crystal (KNbO3). Mode-locking threshold and performances are compared between the two types of crystal.