锥形透镜光纤与平面光波光路芯片的耦合实验  

Experimental Observation on the Coupling Characteristics of Tapered and Lensed Fiber and Planar Lightwave Circuit Chip

作　　者：曲舒霆[1] 刘旭[1] 孙小菡[1] 

机构地区：[1]东南大学电子科学和工程学院光子学与光通信研究室,南京210096

出　　处：《光子学报》2007年第1期47-50,共4页Acta Photonica Sinica

基　　金："十五"863子项目(2002AA31230);江苏省高技术项目(7706008020)资助

摘　　要：对锥形透镜光纤(TLF)与半导体多量子阱(MQW)平面光波光路(PLC)芯片的耦合特性进行了实验研究.数值模拟了TLF、普通单模光纤(SMF)分别和PLC芯片脊波导的耦合情形,发现TLF-PLC耦合损耗比SMF-PLC耦合损耗小3.01 dB.测得了TLF的出射光场光斑,分析了出射光场发散范围.建立光纤-PLC芯片耦合实验系统,用放大自发辐射(ASE)宽带光源在1550 nm波长处对比分析了PLC芯片与不同光纤的耦合连接损耗,从而确证最佳方案为TLF-PLC-SMF:即TLF作为入纤,SMF作为出纤时,耦合对准容易实现,损耗为10.798 dB,比TLF-PLC-TLF耦合损耗小4.458 dB.The coupling characteristics of tapered and lensed fiber （TLF） and semiconductor MQW planar lightwave circuit （PLC） chip was investigated experimentally. Based on FDTD method,the optical mode field transmission from TLF or SMF to PLC chip was simulated. The coupling loss of TLF-PISC was 3.01 dB less than that of SMF-PLC. The TLF output spot was shot and consequently the divergence angle was calculated on geometrical optics. Different coupling experimental configurations for fiber-PLC chip alignment and connection were demonstrated using ASE broadband source. At 1550 nm wavelength, the coupling loss for TLF-PLC-SMF linkage was 10. 798 dB. It was 4. 458 dB less than TLF-PLC-TLF and moreover the former method was more easily implemented than the latter one so that the optimum coupling scheme was established.

关 键 词：锥形透镜光纤 平面光波光路芯片 耦合实验 

分 类 号：TN256[电子电信—物理电子学]