摘要
高速光器件的封装工艺中,光耦合占据重要的地位.文中针对一种高速光探测器中常用的光耦合方式———倾斜端面光纤到倒装芯片的耦合,提出了光纤耦合的柱透镜光学模型,并通过理论和光学软件模拟了各种封装工艺条件对耦合效率的影响.模拟结果显示,耦合效率的大小由光纤位置、芯片透镜尺寸和激光光源光斑形状共同决定.
We propose an optical model of a cylindrical lens for fiber coupling based on the method of coupling an angle-ended fiber to the front facet of a chip that is used in high-speed optical receivers. We also study the effect of the packing process on coupling efficiency with the optical model and software simulation. The simulation results show that the optical coupling efficiency is determined by fiber position,the lens design of the photodiode chips,and the shape of the light source.
关键词
光探测器
倾斜端面光纤
耦合效率
耦合容许度
optical receiver
angle-ended fiber
coupling efficiency
coupling tolerance
