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。
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.
出处
《光电子．激光》
EI
CAS
CSCD
北大核心
2010年第5期655-658,共4页
Journal of Optoelectronics·Laser
基金
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)
