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准相位匹配扇形光栅铌酸锂光波导倍频绿光输出 被引量:2

Fan-out Grating Quasi-Phase-Matched Second Harmonic Generation in LiNbO_3 Waveguide
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摘要 采用外加电场极化方式对具有扇形光栅的 0 .5mm厚Z切铌酸锂晶体进行极化反转 ,制成了退火质子交换光波导。极化反转周期为 5 .8μm~ 6 .2 μm ,采用Nd∶YAG激光器输出的 1.0 6 4 μm连续激光为基频光波 ,实现了0 .5 32 μm倍频绿光输出 ,相互作用长度为 4mm ,耦入波导的基频光波功率为 10mW ,获得了 2 0 μW的绿色倍频光输出 ,归一化转换效率为 12 5 % (W·cm2 )。 The quasi phase matched second harmonic generation in periodically poled lithium niobate (PPLN) Z cut 0.5 mm thick annealed proton exchanged (APE) waveguide with fan grating was realized by applying an external field poling. The grating period ranges inverted from 5.8 μm~6.2 μm and the interaction length was 4 mm. Used a CW Nd∶YAG laser as a fundamental beam source at 1.064 μm, input power in waveguide was 10 mW. The green SHG of 20 μW at 0.532 μm was achieved at 125%/(W·cm 2) normalized conversion efficiency in PPLN waveguide.
出处 《光学学报》 EI CAS CSCD 北大核心 2002年第8期921-923,共3页 Acta Optica Sinica
基金 天津市重点自然科学基金 (99380 0 71) 教育部科学技术研究重点项目 (0 2 0 4 2 )资助课题
关键词 倍频绿光输出 铌酸锂晶体 光波导 准相位匹配 扇形光栅 极化反转周期 LiNbO 3 optical waveguide quasi phase matched second harmonic generation fan out grating periodically poled lithium niobate (PPLN)
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参考文献2

  • 1Yu Jian Ni Wenjun.-[J].光电子.激光,2002,13(4):339-342.
  • 2Xue Ting Yu Jian.-[J].物理学报,2002,51(3):656-572.

同被引文献14

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  • 9薛挺,于建,杨天新,倪文俊,李世忱.1.5μm波段基于级联二阶非线性的铌酸锂光波导全光波长变换的理论分析[J].物理学报,2002,51(1):91-98. 被引量:10
  • 10薛挺,于建,杨天新,倪文俊,李世忱.准位相匹配铌酸锂波导倍频特性分析与优化设计[J].物理学报,2002,51(3):565-572. 被引量:14

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