28 September 2017 Efficient near-infrared, multiwavelengths PbWO4 Raman laser
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Abstract
We report on a near-infrared, multiwavelength-stimulated Raman scattering (SRS) laser source based on the PbWO4 crystal, pumped by a pico-second Nd:YAG laser. At a high pump level, simultaneous two phonon modes SRSs are obtained, including 901 and 323  cm−1 Raman shifts, presenting six Raman spectral lines distributing in 1- to 1.5-μm waveband. The largest Raman output energy is 0.72 mJ, corresponding to an optical conversion efficiency of 37.9% and a slope efficiency of 80.4%. This work manifests that, as a low cost, large size, and high damage threshold crystal, PbWO4 is an efficient, convenient SRS material to enrich near-infrared laser wavelengths.
© 2017 Society of Photo-Optical Instrumentation Engineers (SPIE)
Ruijun Lan, Ruijun Lan, Fang Zhang, Fang Zhang, Zhengping Wang, Zhengping Wang, Wei Xiong, Wei Xiong, Hui Yuan, Hui Yuan, Tianli Feng, Tianli Feng, } "Efficient near-infrared, multiwavelengths PbWO4 Raman laser," Optical Engineering 56(9), 096112 (28 September 2017). https://doi.org/10.1117/1.OE.56.9.096112 . Submission: Received: 13 July 2017; Accepted: 14 September 2017
Received: 13 July 2017; Accepted: 14 September 2017; Published: 28 September 2017
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