Asymmetrical mirror optimization for a 140 GHz TE_（22,6） quasi-optical mode converter system

We introduce an asymmetrical mirror design to a 140 GHz TE_（22,6） quasi-optical（QO） mode converter system to correct the asymmetry of the beam＇s field distribution caused by the Denisov launcher. By such optimization, the output beam with better symmetrical distribution is obtained at the system＇s o...

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Bibliographic Details
Published in中国物理B：英文版 Vol. 26; no. 7; pp. 75 - 80
Main Author 夏冬 金铭 白明
Format Journal Article
LanguageEnglish
Published 2017
Subjects
不对称
优化
在系统
对称分布
模式变换器
计算结果
输出光束
镜面设计
Online AccessGet full text
ISSN1674-1056
2058-3834

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Summary:We introduce an asymmetrical mirror design to a 140 GHz TE_（22,6） quasi-optical（QO） mode converter system to correct the asymmetry of the beam＇s field distribution caused by the Denisov launcher. By such optimization, the output beam with better symmetrical distribution is obtained at the system＇s output window. Based on the calculated results,the QO mode converter system＇s performance is already satisfying without iterative phase correction. Scalar and vector correlation coefficients between the output beam and the fundamental Gaussian beam are respectively 98.4% and 93.0%,while the total power transmission efficiency of the converter system is 94.4%. The assistance of optical ray tracing to the design of such QO mode converters is introduced and discussed as well.
Bibliography:asymmetrical mirror design; optical ray tracing; quasi-optical mode converter
11-5639/O4
Dong Xia1,Ming Jin1,2,Ming Bai1（ 1 School of Electronics and Information Engineering, Beihang University, Beijing 100191, China; 2Institute of Remote Sensing and Digital Earth, State Key Laboratory of Remote Sensing, Beijing 100101, China）
We introduce an asymmetrical mirror design to a 140 GHz TE_（22,6） quasi-optical（QO） mode converter system to correct the asymmetry of the beam＇s field distribution caused by the Denisov launcher. By such optimization, the output beam with better symmetrical distribution is obtained at the system＇s output window. Based on the calculated results,the QO mode converter system＇s performance is already satisfying without iterative phase correction. Scalar and vector correlation coefficients between the output beam and the fundamental Gaussian beam are respectively 98.4% and 93.0%,while the total power transmission efficiency of the converter system is 94.4%. The assistance of optical ray tracing to the design of such QO mode converters is introduced and discussed as well.
ISSN:1674-1056
2058-3834