Abstract

Topology of a hybrid waveguide device, which performs an effective transformation of a standard gradient titanium in-diffused waveguide mode to a hybrid waveguide mode, is considered. With its help a rather large optical mode with size optimal for coupling with standard single-mode fibers can be converted to a mode with a smaller size. Two the most perspective materials for hybrid waveguide fabrication were considered: silicon and titanium dioxide. The theoretical analysis has shown that transformation efficiency of more than 99% is achievable for waveguide devices based on titanium dioxide with contact lithography resolution.

中文翻译：

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基于铌酸锂的混合波导中的模式转换，可有效耦合到标准单模光纤

摘要

考虑了混合波导器件的拓扑，该器件执行标准梯度钛扩散波导模式到混合波导模式的有效转换。借助它，可以将尺寸适合与标准单模光纤耦合的相当大的光学模式转换为尺寸较小的模式。考虑了用于混合波导制造的两种最具前景的材料：硅和二氧化钛。理论分析表明，具有接触光刻分辨率的二氧化钛波导器件的转换效率可达到99%以上。