1College of Physics and Electronic Information, Wenzhou University, Wenzhou 325035 2Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002
Compact Continuous-Wave Nd:YVO4 Laser with Self-Raman Conversion and Sum Frequency Generation
1College of Physics and Electronic Information, Wenzhou University, Wenzhou 325035 2Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002
摘要Low threshold and compact cw Nd:YVO4 self−Raman lasers at 1176 nm and sum-frequency mixing of fundamental and first-Stokes wavelengths are demonstrated. A 20-mm Nd:YVO4 crystal is adopted in a compact plane-concave resonator. The results show that the cw Raman conversion is sensitive to cavity length. At an incident pump power of 22.5 W, output power of 1.53 W at 1175.6 nm is achieved, corresponding to the threshold of only 0.8 W and the slop efficiency of 8.1%. Intra-cavity sum-frequency generation is realized in a type-II phase-matching cut KTP crystal, 480 mW at 558.6 nm is obtained at incident pump power of 12 W.
Abstract：Low threshold and compact cw Nd:YVO4 self−Raman lasers at 1176 nm and sum-frequency mixing of fundamental and first-Stokes wavelengths are demonstrated. A 20-mm Nd:YVO4 crystal is adopted in a compact plane-concave resonator. The results show that the cw Raman conversion is sensitive to cavity length. At an incident pump power of 22.5 W, output power of 1.53 W at 1175.6 nm is achieved, corresponding to the threshold of only 0.8 W and the slop efficiency of 8.1%. Intra-cavity sum-frequency generation is realized in a type-II phase-matching cut KTP crystal, 480 mW at 558.6 nm is obtained at incident pump power of 12 W.
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2011, Vol. 28 
