集成光学条波导阵列与单模光纤阵列的联接

DESIGN CONSIDERATIONS F0R THE CONNECT0R 0F INTEGRATED 0PTICAL STRIP WAVEGUIDES TO SINGLE M0DE ARRAYS

本文报告了一种新的集成光学条波导阵列与镶嵌在硅V槽中的单模光纤阵列耦合联接方法的设计考虑，导出了确定光纤正确位置及V型槽的几何尺寸的若干计算公式．并讨论了光纤与波导几何尺寸与耦合效率的关系．指出了这是实现单模光纤阵列与条波导阵列的固定联接的有效方法，它简化了波导与光纤的对准程序，即由五维调整简化为平面的一维调整．可实现多个波导和多个光纤的同时对准与固定．最大限度地利用了有效重叠面积，从而提高了光纤与条波导的耦合效率．一组典型的数据是单模光纤（芯径10μm）对单模波导（10μm×5μm）的耦合效率可达55％，而同样尺寸的波导对光纤的最大耦会效率可达86％．

This paper describes a new design consideration for connectors of integrated optical stripwave-guides to single-mode fiber arrays in silicon V -grooves. Some f0rmulas for determining positionof fibers and dimensions of silicon V -grooves are derived. The relati0nship between the couplingefficiency and geometrical parameters of fibers and waveguides in this way are discussed. We canrealize permanent c0nnecting betWeen fibers and waveguides,simplify the c0upling processes of thefibers and the waveguides and increase the coupling efficiency of SM fibers to waveguides. As anexample, the coupling efficiency of SM fiber (D= 1Opm)to SM waveguide (l0pm X 5pm)is up to 55 %.The maximum coupling efficiency of SM waveguide to SM fiber is up to 86%.