| 自由空间奇数端口非对称型光开关研究 |
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| 引用本文： | 杨俊波,刘菊,杨建坤,李修建,苏显渝,徐平.自由空间奇数端口非对称型光开关研究[J].光电子．激光,2010(5):655-658. |
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| 作者姓名： | 杨俊波 刘菊 杨建坤 李修建 苏显渝 徐平 |
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| 作者单位： | 国防科学技术大学理学院技术物理研究所;四川大学电子信息学院光电科学技术系;深圳大学电子科学与技术学院 |
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| 基金项目： | 国家自然科学基金资助项目(60907003);国防科技大学校预研基金资助项目(JC09-02-12) |
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| 摘 要： | 有别于传统的偶数端口对称型光开关设计,本文采用积木叠层方法设计,结构非对称、奇数端口的2×3和3×3光开关;各光开关基本功能单元结构类似,均由偏振光分束器(PBS)、相位型空间光调制器(PSLM)和反射镜组成;利用成熟的偏振控制技术实现信号光的控制和路由选择,有效避免路径的冲突与阻塞。这种设计具有结构简单紧凑、控制方便灵活、双向操作、与偏振无关、即插即用、易集成、易扩容和升级等特点。对2×2光开关单元的实验分析表明,该光开关插损小、串扰低和可靠性高,对于构建大规模的奇数端口和非对称结构的交换矩阵有帮助。
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| 关 键 词： | 光计算 光网络 光开关 相位型空间光调制器(PSLM) 偏振光分束器(PBS) |
Study of odd ports and asymmetrical optical switch in free space |
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| YANG Jun-bo,LIU Ju,YANG Jian-kun,LI Xiu-jian,SU Xian-yu,XU Ping.Study of odd ports and asymmetrical optical switch in free space[J].Journal of Optoelectronics·laser,2010(5):655-658. |
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| Authors: | YANG Jun-bo LIU Ju YANG Jian-kun LI Xiu-jian SU Xian-yu XU Ping |
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| Affiliation: | 1.Tech-physical Research Center,National University of Defense Technology,Changsha 410073,China;2.Department of Optoelectronics,Sichuan University,Chengdu 610064,China;3.College of Electronic Science and Technology,Shenzhen University,Shenzhen 518060,China) |
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| Abstract: | Based on the matured polarization control technology to realize routing and switching of signal beams,a novel odd ports and asymmetrical optical switch including 2×3 and 3×3 switch elements is proposed by using phase spatial light modulator(PSLM).It has the advantages of compact structure,efficient performance,small size,low energy loss,and polarization-independent due to exploiting the building block pattern.The theoretical analysis and preliminary experimental parameters show that the functional experimental prototype with large number of input/output ports should be helpful in the optimization of large-scale optical switch matrix. |
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| Keywords: | optical computing optical network optical switch phase spatial light modulator(PSLM) polarizing beam-splitter(PBS) |
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