Title :
Quasi-continuous wave solid-state Raman laser system generating 22 lines from the ultraviolet to near infrared
Author :
Vodchits, A.I. ; Busko, D.N. ; Orlovich, V.A. ; Lisinetskii, V.A. ; Grabtchikov, A.S. ; Apanasevich, P.A. ; Eichler, H.J.
Author_Institution :
Nat. Acad. of Sci. of Belarus, Minsk
Abstract :
Lasers based on stimulated Raman scattering (SRS) of light in crystals (Raman lasers) are promising sources of radiation in wide spectral region. Using such lasers, an efficient quasi-continuous wave (quasi-CW) laser system generating multi-wavelength radiation is developed. Laser system is based on a quasi-CW nanosecond lamp-pumped Nd:YAG laser with acousto-optic Q-switching, Raman lasers on barium nitrate and KGW crystals and nonlinear crystal optical converters. Pulse repetition rate of the system is equal to 1 or 4 kHz. Raman lasers are excited with the focused radiation at 532 nm or 1064 nm using the two-pass pumping scheme. Thermal lens induced in the crystals due to SRS is diminished substantially by applying concave spherical mirrors of Raman laser resonator and efficient heat removal.
Keywords :
Q-switching; Raman lasers; acousto-optical switches; barium compounds; gadolinium compounds; laser cavity resonators; laser mirrors; neodymium; optical pumping; potassium compounds; solid lasers; stimulated Raman scattering; thermal lensing; BaNO3; KGW crystal; KGdWO4; Raman laser resonator; SRS; YAG:Nd; acousto-optic Q-switching; barium nitrate crystal; concave spherical mirrors; heat removal; multiwavelength radiation; nanosecond lamp-pumped laser; nonlinear crystal optical converters; quasicontinuous wave solid-state Raman laser system; stimulated Raman scattering; thermal lens; two-pass pumping scheme; wavelength 1064 nm; wavelength 532 nm; Barium; Crystals; Laser excitation; Nonlinear optics; Optical pumping; Optical resonators; Pump lasers; Raman scattering; Solid lasers; Solid state circuits;
Conference_Titel :
Lasers and Electro-Optics, 2007 and the International Quantum Electronics Conference. CLEOE-IQEC 2007. European Conference on
Conference_Location :
Munich
Print_ISBN :
978-1-4244-0931-0
Electronic_ISBN :
978-1-4244-0931-0
DOI :
10.1109/CLEOE-IQEC.2007.4385892
