Share Email Print
cover

Proceedings Paper

Nd:SrWO4 Raman laser
Author(s): Helena Jelinkova; Jan Sulc; Maxim E. Doroschenko; Vadim V. Skornyakov; Sergey B. Kravtsov; Tasoltan Tazretovich Basiev; Peter G. Zverev
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

Properties of the laser operation and simultaneously stimulated Raman scattering in the new SRS-active neodymium doped SrWO4 crystal coherently end-pumped by alexandrite 752 nm laser radiation were investigated. The maximum generated energy 90 mJ from the free-running Nd3+:SrWO4 laser at 1057 nm wavelength was obtained with the output coupler reflectivity 52%. The slope efficiency reached s = 0.52, the beam characteristic parameters M2 and divergence q were 2.5 ± 0.1, and 1.5 ± 0.1 mrad, respectively. Maximal output energy of 1.46 mJ for the fundamental wavelength was obtained for Q-switched Nd3+:SrWO4 oscillator with a double Fabry-Perrot as the output coupler (R = 48%), and with the 5% initial transmission of LiF:F2- saturable absorber. Up to 0.74 mJ energy was registered at the first Stokes frequency. The pulse duration was 5 ns and 2.4 ns for the fundamental and Stokes radiation, respectively. The energy of 1.25 mJ at 1170 nm was obtained for closed Raman resonator with special mirrors. For the case of mode-locking, two dye saturable absorbers (ML51 dye in dichlorethan and 3955 dye in ethanol) were used and SRS radiation in the form of pulse train was observed. The influence of the various Raman laser output couplers reflectivity as well as the initial transmissions of passive absorbers were investigated with the goal of the output energy maximization at the Stokes wavelength. In the output, the total measured energy was 1.8 mJ (for ML51 dye) and 2.4 mJ (for 3955 dye). The SRS output at 1170 nm was approximately 20% of total energy.

Paper Details

Date Published: 1 September 2004
PDF: 11 pages
Proc. SPIE 5460, Solid State Lasers and Amplifiers, (1 September 2004); doi: 10.1117/12.544839
Show Author Affiliations
Helena Jelinkova, Czech Technical Univ. (Czech Republic)
Jan Sulc, Czech Technical Univ. (Czech Republic)
Maxim E. Doroschenko, General Physics Institute (Russia)
Vadim V. Skornyakov, General Physics Institute (Russia)
Sergey B. Kravtsov, General Physics Institute (Russia)
Tasoltan Tazretovich Basiev, General Physics Institute (Russia)
Peter G. Zverev, General Physics Institute (Russia)


Published in SPIE Proceedings Vol. 5460:
Solid State Lasers and Amplifiers
Alphan Sennaroglu; James G. Fujimoto; Clifford R. Pollock, Editor(s)

© SPIE. Terms of Use
Back to Top