| 准相位匹配扇形光栅铌酸锂光波导倍频绿光输出 |
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| 引用本文： | 于建,薛挺,杨天新,耿凡,纪磊,李世忱. 准相位匹配扇形光栅铌酸锂光波导倍频绿光输出[J]. 光学学报, 2002, 22(8): 21-923 |
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| 作者姓名： | 于建 薛挺 杨天新 耿凡 纪磊 李世忱 |
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| 作者单位： | 1. 天津大学精密仪器与光电子工程学院,光电信息技术科学教育部重点实验室,天津,300072
2. 津航技术物理研究所,天津,300192 |
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| 基金项目： | 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 |
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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 )。
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| 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 |
| 收稿时间： | 2001-09-24 |
Fan-out Grating Quasi-Phase-Matched Second Harmonic Generation in LiNbO3 Waveguide |
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| Yu Jian ) Xue Ting ) Yang Tianxin ) Geng Fan ) Ji Lei ) Li Shichen ) ),College of Precision Instrument and Optoelectronics Engineering,Laboratory of Optoelectronics Information Technical Science,Education Mi. Fan-out Grating Quasi-Phase-Matched Second Harmonic Generation in LiNbO3 Waveguide[J]. Acta Optica Sinica, 2002, 22(8): 21-923 |
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| Authors: | Yu Jian ) Xue Ting ) Yang Tianxin ) Geng Fan ) Ji Lei ) Li Shichen ) ) College of Precision Instrument Optoelectronics Engineering Laboratory of Optoelectronics Information Technical Science Education Mi |
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| Affiliation: | Yu Jian 1) Xue Ting 1) Yang Tianxin 1) Geng Fan 2) Ji Lei 1) Li Shichen 1) 1),College of Precision Instrument and Optoelectronics Engineering,Laboratory of Optoelectronics Information Technical Science,Education Mi |
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| Abstract: | 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. |
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| Keywords: | LiNbO 3 optical waveguide quasi phase matched second harmonic generation fan out grating periodically poled lithium niobate (PPLN) |
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