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Proceedings Paper

Efficient synchronously-pumped all-solid-state SrWO4 Raman laser at 1178 and 1227 nm on single and combined Raman modes with 26-fold pulse shortening down to 1.4 ps
Author(s): Milan Frank; Sergei N. Smetanin; Michal Jelínek; David Vyhlídal; Vladislav E. Shukshin; Lyudmila I. Ivleva; Petr G. Zverev; Václav Kubeček
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Paper Abstract

In this paper, the characteristics of synchronously pumped picosecond Raman laser based on the 36 mm long SrWO4 crystal at the shifts of ν1 = 921 cm–1 and ν2 = 336 cm–1 under 36-ps extracavity pumping are presented. The first Stokes at the wavelength of 1178 nm, corresponding to the Raman shift of ν1, with the slope efficiency of 45.1%, output energy of up to 40 nJ, and pulse duration of 33 ps, respectively, was achieved for the output coupler reflectivity of 89%. In the case of setup with the higher cavity Q-factor at 1178 nm, we obtained not only usual ν1- shifted Raman radiation at 1178 nm, but also the unusual line at the wavelength of 1227 nm (ν1 + ν2). This additional line was achieved with the slope efficiency of 18.1 % and the output energy of 15 nJ with the output coupler reflectivity of 96.5% at 1227 nm. Strong pulse shortening from 36 ps down to 1.4 ps at the wavelength of 1227 nm was observed at +50 μm positive detuning of the external cavity length. This value is close to the inverse value of the ν2 line.

Paper Details

Date Published: 30 April 2019
PDF: 7 pages
Proc. SPIE 11026, Nonlinear Optics and Applications XI, 1102618 (30 April 2019); doi: 10.1117/12.2520932
Show Author Affiliations
Milan Frank, Czech Technical Univ. in Prague (Czech Republic)
Sergei N. Smetanin, Prokhorov General Physics Institute (Russian Federation)
Michal Jelínek, Czech Technical Univ. in Prague (Czech Republic)
David Vyhlídal, Czech Technical Univ. in Prague (Czech Republic)
Vladislav E. Shukshin, Prokhorov General Physics Institute (Russian Federation)
Lyudmila I. Ivleva, Prokhorov General Physics Institute (Russian Federation)
Petr G. Zverev, Prokhorov General Physics Institute (Russian Federation)
Václav Kubeček, Czech Technical Univ. in Prague (Czech Republic)


Published in SPIE Proceedings Vol. 11026:
Nonlinear Optics and Applications XI
Mario Bertolotti; Alexei M. Zheltikov, Editor(s)

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