二次谐波产生效率的非线性增强

2010 International Conference on Enabling Science and Nanotechnology (ESciNano) Pub Date : 2010-12-01 DOI:10.1063/1.3586996

N. Bidin, N. E. Khamsan, Enass Mauludi, F. Noor

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引用次数: 0

摘要

采用基波长为1064 nm的二极管激光器泵浦双折射ND:YVO4，泵浦非线性KTP晶体。具有天然双折射特性的石英晶体，即四分之一波片和半波片，与KTP体结合以增强非线性光束。结果表明，半波片的光电转换效率为15.6 mW/A，而四分之一波片的光电转换效率仅为8.74 mW/A。半波片和四分之一波片的阈值电流分别为5.3 A和5.9 A。由于偏振态转换后的模式匹配良好，实现了半波片的高性能。

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Nonlinear enhancement of the efficiency of the second harmonic generation

Birefringent ND:YVO4 pumped by diode laser with fundamental wavelength of 1064 nm was used to pump nonlinear KTP crystal. Quartz crystals having natural birefringent property namely quarter and half waveplates were conducted in conjunction with the bulk of KTP to enhance the nonlinear beam. The result showed that half waveplate have electrical to optical conversion efficiency of 15.6 mW/A as compared to quarter waveplate is only 8.74 mW/A. The threshold current for SHG is found 5.3 A with half waveplate and 5.9 A with quarter waveplate. The high performance shown by half waveplate is realized due to the good mode matching after converting the polarization state.

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2010 International Conference on Enabling Science and Nanotechnology (ESciNano)

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