A Compact Dual-Mirror Design of Quasi-Optical Mode Converter for Gyrotron Application

Ming Jin; Xiang Li; Dong Xia; Yichi Zhang; Yizhang Zhu; Ming Bai

doi:10.1109/LAWP.2022.3155789

A Compact Dual-Mirror Design of Quasi-Optical Mode Converter for Gyrotron Application

Ming Jin
, Xiang Li
, Dong Xia
, Yichi Zhang
, Yizhang Zhu
, Ming Bai^*

^*Corresponding author for this work

School of Electronic and Information Engineering

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

The quasi-optical mode converter (QOMC) for high-power fusion gyrotron is a typical beam transformation and shaping device in near-field region. In this letter, the authors report their progress in designing a compact QOMC with only two reflecting mirrors. For achieving the high-efficiency conversion comparable to conventional multimirror converters, the authors exercise modification and optimization on the first mirror based on the classic quasi-elliptical design. It is shown that the optimized first mirror can fulfill multifunctions that have to be achieved by a chain of mirrors in conventional designs. Numerical results show the effectiveness of the optimization, which can be revealed by the achieved 95.97% Gaussian content in the output beam with power transmission efficiency of 99.0%.

Original language	English
Pages (from-to)	1032-1036
Number of pages	5
Journal	IEEE Antennas and Wireless Propagation Letters
Volume	21
Issue number	5
DOIs	https://doi.org/10.1109/LAWP.2022.3155789
State	Published - 1 May 2022

Keywords

Field propagation
Gaussian beam
quasi-optical mode converter (QOMC)

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10.1109/LAWP.2022.3155789

Cite this

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title = "A Compact Dual-Mirror Design of Quasi-Optical Mode Converter for Gyrotron Application",

abstract = "The quasi-optical mode converter (QOMC) for high-power fusion gyrotron is a typical beam transformation and shaping device in near-field region. In this letter, the authors report their progress in designing a compact QOMC with only two reflecting mirrors. For achieving the high-efficiency conversion comparable to conventional multimirror converters, the authors exercise modification and optimization on the first mirror based on the classic quasi-elliptical design. It is shown that the optimized first mirror can fulfill multifunctions that have to be achieved by a chain of mirrors in conventional designs. Numerical results show the effectiveness of the optimization, which can be revealed by the achieved 95.97\% Gaussian content in the output beam with power transmission efficiency of 99.0\%.",

keywords = "Field propagation, Gaussian beam, quasi-optical mode converter (QOMC)",

author = "Ming Jin and Xiang Li and Dong Xia and Yichi Zhang and Yizhang Zhu and Ming Bai",

note = "Publisher Copyright: {\textcopyright} 2002-2011 IEEE.",

year = "2022",

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doi = "10.1109/LAWP.2022.3155789",

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T1 - A Compact Dual-Mirror Design of Quasi-Optical Mode Converter for Gyrotron Application

AU - Jin, Ming

AU - Li, Xiang

AU - Xia, Dong

AU - Zhang, Yichi

AU - Zhu, Yizhang

AU - Bai, Ming

PY - 2022/5/1

Y1 - 2022/5/1

N2 - The quasi-optical mode converter (QOMC) for high-power fusion gyrotron is a typical beam transformation and shaping device in near-field region. In this letter, the authors report their progress in designing a compact QOMC with only two reflecting mirrors. For achieving the high-efficiency conversion comparable to conventional multimirror converters, the authors exercise modification and optimization on the first mirror based on the classic quasi-elliptical design. It is shown that the optimized first mirror can fulfill multifunctions that have to be achieved by a chain of mirrors in conventional designs. Numerical results show the effectiveness of the optimization, which can be revealed by the achieved 95.97% Gaussian content in the output beam with power transmission efficiency of 99.0%.

AB - The quasi-optical mode converter (QOMC) for high-power fusion gyrotron is a typical beam transformation and shaping device in near-field region. In this letter, the authors report their progress in designing a compact QOMC with only two reflecting mirrors. For achieving the high-efficiency conversion comparable to conventional multimirror converters, the authors exercise modification and optimization on the first mirror based on the classic quasi-elliptical design. It is shown that the optimized first mirror can fulfill multifunctions that have to be achieved by a chain of mirrors in conventional designs. Numerical results show the effectiveness of the optimization, which can be revealed by the achieved 95.97% Gaussian content in the output beam with power transmission efficiency of 99.0%.

KW - Field propagation

KW - Gaussian beam

KW - quasi-optical mode converter (QOMC)

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U2 - 10.1109/LAWP.2022.3155789

DO - 10.1109/LAWP.2022.3155789

M3 - 文章

AN - SCOPUS:85125708526

SN - 1536-1225

VL - 21

SP - 1032

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JO - IEEE Antennas and Wireless Propagation Letters

JF - IEEE Antennas and Wireless Propagation Letters

IS - 5

ER -

A Compact Dual-Mirror Design of Quasi-Optical Mode Converter for Gyrotron Application

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Keywords

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