| 一种基于PDLC-KIO3的新型光倍频开关设计与实现 |
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| 引用本文： | 朱腾飞,潘雪丰,谭炳辉,陶卫东,白贵儒. 一种基于PDLC-KIO3的新型光倍频开关设计与实现[J]. 光电子．激光, 2009, 20(6): 721-724 |
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| 作者姓名： | 朱腾飞 潘雪丰 谭炳辉 陶卫东 白贵儒 |
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| 作者单位： | 宁波大学理学院,浙江宁波,315211;宁波大学光纤通信与网络技术研究所,浙江宁波,315211 |
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| 基金项目： | 国家自然科学基金资助项目(60777037);;国家“973”计划资助项目(2004CB719805);;宁波市自然科学基金资助项目(2007A610003);;宁波市人事局“4321”人才工程资助项目 |
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| 摘 要： | 利用聚合物分散液晶(PDLC)的开关特性与KIO3微晶体的非线性光学特性,研制出具有倍频效应(SHG)并且倍频光强电控可调谐的光变频开关。将YAG激光脉冲入射到开关器件,通过调制施加在开关上的驱动电压,当光开关闭合时,可阻挡基频光脉冲,抑制SHG,当光开关开启时,可在散射光路中观察到显著的SHG,开、关态倍频光强对比度可达6∶1。实验发现,驱动电压在0～80 V间,倍频光强能够实现近似线性的调制。测试表明,该变频开关的响应时间为20 ms。
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| 关 键 词： | 光变频开关 倍频效应(SHG) 聚合物分散液品(PDLC) KIO3粉末 |
Design and experiment of a novel optical switch for second harmonic generation based on PDLC and KIO_3 |
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| ZHU Teng-fei,PAN Xue-feng,TAN Bing-hui,TAO Wei-dong,BAI Gui-ru. Design and experiment of a novel optical switch for second harmonic generation based on PDLC and KIO_3[J]. Journal of Optoelectronics·laser, 2009, 20(6): 721-724 |
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| Authors: | ZHU Teng-fei PAN Xue-feng TAN Bing-hui TAO Wei-dong BAI Gui-ru |
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| Affiliation: | 1.College of Science Ningbo University;Ningbo 315211;China;2.Institute of Optical Fibre Communication and Network Technology;Ningbo University;China |
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| Abstract: | A novel optical switch for second harmonic generation(SHG) is presented based on the electro-optical switching effect of polymer dispersed liquid crystal(PDLC) and nonlinear optical characteristics of KIO3 powder.YAG laser pulse enters the SHG optical switch,at the same time,an ac electric field is applied on PDLC for modulation.When the switch is in off-state,the second harmonic light is restrained.When the switch is in on-state,the second harmonic waves of YAG laser are generated and detected in the scatt... |
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| Keywords: | optical switch second harmonic generation(SHG) polymer dispersed liquid crystal(PDLC) KIO3 powder |
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