Chinese Journal of Lasers, Volume. 38, Issue 7, 702006(2011)
A BaWO4 Raman Laser with the Raman Shift of 332 cm-1
A 1103-nm BaWO4 Raman laser is demonstrated with a 1064 nm pump laser. A 5 mm×5 mm×46 mm BaWO4 crystal with scattering geometry X(ZZ)X configuration is employed as the active medium and its 332 cm-1 Raman mode is accomplished. At an incident pump power of 7.55 W, the first-Stokes power of 1.23 W at 1103.2 nm is obtained at a repetition rate of 17 kHz, corresponding to an optical-to-optical conversion efficiency of 16.3%. The pulse width of Raman laser is measured to be 27 ns and the peak power is 2.6 kW. The beam quality factors M2 in the two orthogonal directions are 2.0±0.2 and 1.8±0.2, respectively. The thermal focal length of the BaWO4 crystal is estimated to be -1100 mm under this condition.
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Sun Wenjia, Wang Qingpu, Liu Zhaojun, Zhang Xingyu, Wang Gongtang, Bai Fen, Lan Weixia, Wan Xuebin, Zhang Huaijin. A BaWO4 Raman Laser with the Raman Shift of 332 cm-1[J]. Chinese Journal of Lasers, 2011, 38(7): 702006
Category: Laser physics
Received: Mar. 1, 2011
Accepted: --
Published Online: Jun. 14, 2011
The Author Email: Wenjia Sun (swj924@163.com)