Mode Conversion Arising from Lattice Mismatching in YIG Thin Film Waveguides

Xiong Zhengjun; Liu Xiande

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Mode Conversion Arising from Lattice Mismatching in YIG Thin Film Waveguides

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- Mode Conversion Arising from Lattice Mismatching in YIG Thin Film Waveguides
- Acta Electronica Sinica Issue 6, Pages: 94-95(1991)
- 作者机构：
  
  1. 华中理工大学光学系
  2. 华中理工大学光学系武汉 430074
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：1991
- 稿件说明：
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[1]熊政军,刘贤德.YIG薄膜光波导晶格失配引起的模式转换[J].电子学报,1991(06):94-95.

Xiong Zhengjun, Liu Xiande. Mode Conversion Arising from Lattice Mismatching in YIG Thin Film Waveguides[J]. Acta Electronica Sinica, 1991, (6): 94-95.
[1]熊政军,刘贤德.YIG薄膜光波导晶格失配引起的模式转换[J].电子学报,1991(06):94-95. DOI：

Xiong Zhengjun, Liu Xiande. Mode Conversion Arising from Lattice Mismatching in YIG Thin Film Waveguides[J]. Acta Electronica Sinica, 1991, (6): 94-95. DOI：

摘要

本文提出了一种在无外场作用情形下薄膜光波导内实现模式转换的方法

理论分析了液相外延在GGG基底上〈111〉膜面取向的YIG薄膜由于晶格常数失配而引起的介电张量变化、模式传播常数修正及耦合系数大小

分析结果表明在常规失配条件下

既可保证薄膜的光学质量

又可达到模式转换的要求。

Abstract

This paper proposes a method of mode conversion in thin film waveguides without any external field. The changes of dielectric tensor

mode propagation constant and mode coupling coefficient arising from lattice mismatching of YIG thin film grown on a 〈111〉 GGG substrate are theoretically analyzed. The results show that in normal mismatching of the YIG thin film with high quality of optical property the mode conversion can be obtained.

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