This paper presents the cw output characteristics of Nd^(3+):KGd(WO_(4))_(2)(KGW)laser crystal with different NcP+concentration grown in our laboratory.The laser output at 1.067 μm of KGW crystal(3×3×6 mm)w...This paper presents the cw output characteristics of Nd^(3+):KGd(WO_(4))_(2)(KGW)laser crystal with different NcP+concentration grown in our laboratory.The laser output at 1.067 μm of KGW crystal(3×3×6 mm)was obtained to be 68.9 mW and the slope efficiency reached 28.8%when pumped by laser diode of power 305 mW at 807 nm.展开更多
A theoretical model of the self sum-frequency-mixing(SFM)laser generated by a single crystal is proposed,in which spatial distribution of the pump and circulating fundamental lasers with arbitrary beam waists are take...A theoretical model of the self sum-frequency-mixing(SFM)laser generated by a single crystal is proposed,in which spatial distribution of the pump and circulating fundamental lasers with arbitrary beam waists are taken into account.The model is then applied to two kinds of crystals of current interest,Nd:YAI_(3)(BO_(3))_(4) and Nd:Ca_(4)GdO(BO_(3))_(3).Numerical analyses of the self-SFM laser properties predict and confirm some experimental results.The model proposed is not limited to self-SFM lasers and may be applied to general analyses of the fundamental or nonlinear laser generation with Gaussian beams.展开更多
The laser performance of Neodymium-doped potassium gadolinium tungstate(Nd:KGd(WO4)2)crystal was studied by using Ti:Sapphire laser as the pump source.The maximum optical-to-optical efficiencies for the 1.067 and 1.3...The laser performance of Neodymium-doped potassium gadolinium tungstate(Nd:KGd(WO4)2)crystal was studied by using Ti:Sapphire laser as the pump source.The maximum optical-to-optical efficiencies for the 1.067 and 1.3μm laser outputs were measured to be 60%and 32.3%,respectively.The internal loss coefficient of the crystal for 1.067μm laser was estimated to be as low as 0.004 cm-1.The oscillation thresholds at 1.067 and 1.3μm for different output transmittances are also given.展开更多
基金Supported by the National Natural Science Foundation of ChinaFujian Provincial Natural Science Foundation.
文摘This paper presents the cw output characteristics of Nd^(3+):KGd(WO_(4))_(2)(KGW)laser crystal with different NcP+concentration grown in our laboratory.The laser output at 1.067 μm of KGW crystal(3×3×6 mm)was obtained to be 68.9 mW and the slope efficiency reached 28.8%when pumped by laser diode of power 305 mW at 807 nm.
基金Supported by Fujian Provincial Natural Science Foundation of China(No.A9910019)Fujian Provincial International Cooperation Foundation of China(No.99-1-7)Foundation of Chinese Academy of Sciences for Outstanding Returned Scholars.
文摘A theoretical model of the self sum-frequency-mixing(SFM)laser generated by a single crystal is proposed,in which spatial distribution of the pump and circulating fundamental lasers with arbitrary beam waists are taken into account.The model is then applied to two kinds of crystals of current interest,Nd:YAI_(3)(BO_(3))_(4) and Nd:Ca_(4)GdO(BO_(3))_(3).Numerical analyses of the self-SFM laser properties predict and confirm some experimental results.The model proposed is not limited to self-SFM lasers and may be applied to general analyses of the fundamental or nonlinear laser generation with Gaussian beams.
基金Supported by the National Natural Science Foundation of China under Grant No.59772004.
文摘The laser performance of Neodymium-doped potassium gadolinium tungstate(Nd:KGd(WO4)2)crystal was studied by using Ti:Sapphire laser as the pump source.The maximum optical-to-optical efficiencies for the 1.067 and 1.3μm laser outputs were measured to be 60%and 32.3%,respectively.The internal loss coefficient of the crystal for 1.067μm laser was estimated to be as low as 0.004 cm-1.The oscillation thresholds at 1.067 and 1.3μm for different output transmittances are also given.
