摘要
利用可调谐光源和光谱分析仪建立的光无源器件测试系统,测试了熔锥型光纤耦合器的附加损耗、插入损耗、方向性和均匀性等光学性能,研究了光学特性与拉锥速度的相关规律。实验发现:器件的光学性能与制作工艺密切相关,如存在一个拉锥速度区间(这里为150μm/s附近的区间),使得光纤耦合器的损耗小、方向性好,离开此区间,器件的性能迅速下降。
Using the optical testing system founded by tunable laser and spectrum analyzer, optical performance such as insertion loss, excess loss, directivity, uniformity and so on are tested. The rule between optical performance and drawing speed is investigated. The result of experiment shows that the optical performance is closely related to fabrication technology. There is a drawing speed interval（about 150 μm/s）, which makes the loss and directivity of optical fiber coupler relatively small. Away from this interval, the performance of the device drops fast.
出处
《半导体光电》
EI
CAS
CSCD
北大核心
2005年第4期287-290,共4页
Semiconductor Optoelectronics
基金
国家自然科学基金重点资助项目(50235040)
关键词
光纤耦合器
熔融拉锥
性能测试
optical fiber coupler
fused biconical taper
performance test
