多模干涉型双波长光功分器的设计与研究  

Design of MMI Double-wavelength Optical Power Splitters

作　　者：孙一翎[1] 李锡华[1] 江晓清[1] 王明华[1] 

机构地区：[1]浙江大学信息与电子工程学系

出　　处：《光电子．激光》2004年第1期29-32,共4页Journal of Optoelectronics·Laser

基　　金：教育部高等学校博士点基金资助项目(20020335100);浙江省自然科学基金资助项目(600028)

摘　　要：研究了一种多模干涉型双波长光功分器,该器件可同时实现1.30μm、1.55μm波长的光信号功率分配。采用导模传输分析法,给出了该光功分器的工作原理,进而完成该功分器的设计。根据所确定的器件结构参数,结合器件制作过程中可能遇到的因素,详细分析了器件结构参数对器件性能的影响。经优化设计的双波长光功分器多模波导的宽度为28μm,长度为2735μm。两波长的插入损耗分别为0.59dB和0.41dB,两波长的功率离散分别为0.16dB和0.15dB。A multi-mode interference double wavelength optical power splitter was studied. The device can be used to divide beam for both 1.30 μm and 1.55 μm at the same time. The guided-mode propagation analysis method was used to analyze the working principle of MMI double wavelength optical power splitter. On the basis of predefined waveguide parameters, insertion loss and imbalance of this device were also analyzed. The optimum width and wavelength of the multimode waveguide are 28 μm and 2735 μm respectively. The two insertion losses are 0.59 dB, 0.41 dB and power uniformities are 0.16 dB, 0.15 dB, respectively.

关 键 词：集成光学 多模干涉 双波长光功分器 设计 工作原理 结构参数 多模波导 

分 类 号：TN25[电子电信—物理电子学]