光学仪器, 2012, 34 (4): 54, 网络出版: 2012-12-06
用于光阻断效应的B270-As2S8复合光波导的设计
The design of B270-As2S8 composite waveguide used in optical stopping
导波光学 光阻断效应 离子交换条波导 As2S8波导 guided-wave optics optical stopping ion-exchanged waveguide As2S8 waveguide
摘要
尽管可以采用光折变技术制备硫化砷条波导,但工艺参数控制复杂,且传输损耗较大。为了解决这一问题,提出了一种用于光阻断效应的新型B270-As2S8复合光波导结构。该设计根据光波导模式耦合的基本原理,借助波束传播法(ＢＰＭ)仿真软件,主要通过对离子交换波导交换时间和As2S8薄膜厚度的匹配设计,实现了632.8 nm波段导波模场分布集中在As2S8薄膜中传输,并始终维持单模特性。这个特点为有效实现光阻断效应提供了条件,非常具有实用价值。
Abstract
A new B270-As2S8 composite waveguide used in optical stopping is designed. This design has realized a guided wave mode field distribution concentrated in the As2S8 film for 632. 8nm, based on the basic principle of optical waveguide mode coupling, using beam propagation method(BPM)simulation software, through matching the exchanged times of ion-exchange waveguide and As2S8 film thickness, providing conditions for optical stopping experiments effectively, with a lot of practical value.
张璡璟, 陈抱雪. 用于光阻断效应的B270-As2S8复合光波导的设计[J]. 光学仪器, 2012, 34(4): 54. ZHANG Jinjing, CHEN Baoxue. The design of B270-As2S8 composite waveguide used in optical stopping[J]. Optical Instruments, 2012, 34(4): 54.
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