Abstract
Coexistent intracavity KTiOPO4 optical parametric oscillator (OPO) and stimulated Raman scattering (SRS) processes pumped by an acousto-optical Q-switched Nd:Lu x Gd3−x Ga5O12 (Nd:LGGG) laser were presented for the first time. The Stokes radiations at 1093.2/1125.8 nm and a signal wave of 1570 nm were generated. At an incident pump power of 9.25 W and pulse repetition rate of 3 kHz, the maximum output powers of 375 mW at 1570 nm and 98 mW at 1093.2/1125.8 nm were obtained for the signal wave and Stokes radiations, respectively, corresponding to a total conversion efficiency of 5.1 %. A set of coupled rate equations for coexistent OPO and SRS processes was developed, and the numerical solutions agreed with the experiment results.
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Acknowledgments
This work is partially supported by the National Natural Science Foundation of China (61378022), the National Natural Science Foundation of China for Youths (61205145), the China Postdoctoral Science Foundation (2013M541901), the Fundamental Research Funds of Shandong University (2014JC032) and the Independent Innovation Foundation of Shandong University, IIFSDU (2013HW013, 2014TB011).
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Qiao, J., Zhao, S., Li, Y. et al. Theoretical and experimental studies on coexistent OPO and SRS from a KTiOPO4 pumped by an AO Q-switched Nd:LGGG laser. Appl. Phys. B 122, 41 (2016). https://doi.org/10.1007/s00340-016-6323-1
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DOI: https://doi.org/10.1007/s00340-016-6323-1