物理学报2013，Vol.62Issue(2)：350-355,6.DOI:10.7498/aps.62.024218
基于热膨胀效应的可调光功率分束器设计
Design of tunable optical power splitter based on thermal expansion effect
摘要
Abstract
The tunable optical power splitter is a key optical component used to dynamically control its optical power at its output ports, which has a wide application in many optical fields. A novel approach to controllable optical power splitter is proposed in this work, which is based on thermal expansion effect resulting in width variation of air gap at the branching point of Y-branch waveguide. The thermal expansion profile and the optical performance are simulated by using the finite element method (FEM). The simulation results show that the tunable optical power splitter can exhibit good performance such as large dynamical range, low dependence of operation wavelength and its optical polarization. In addition, the proposed splitter with a simple structure can be easily designed, fabricated and controlled, which is very useful for potential application in integrated optical system.关键词
集成光学/光功率分束器/热膨胀效应/调控特性Key words
integrated optics/ optical power splitter/ thermal expansion effect/ controllable performance引用本文复制引用
唐雄贵,廖进昆,李和平,刘永,刘永智..基于热膨胀效应的可调光功率分束器设计[J].物理学报,2013,62(2):350-355,6.基金项目
国家自然科学基金(批准号:60908024,61077017,61090393)和中央高校基本业务费基金(批准号:ZYGX2011J050)资助的课题. （批准号:60908024,61077017,61090393）
