Asymmetrical mirror optimization for a 140 GHz TE22, 6 quasi-optical mode converter system

doi:10.1088/1674-1056/26/7/074101

Abstract 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.

Keywords: asymmetrical mirror design optical ray tracing quasi-optical mode converter

Received: 11 November 2016
Revised: 29 March 2017
Accepted manuscript online:

PACS:	41.20.Jb	(Electromagnetic wave propagation; radiowave propagation)
	42.15.Dp	(Wave fronts and ray tracing)

Fund: Project supported by the National Natural Science Foundation of China (Grant No.61671032).

Corresponding Authors: Ming Bai
E-mail: mbai@buaa.edu.cn

Cite this article:

Dong Xia(夏冬), Ming Jin(金铭), Ming Bai(白明) Asymmetrical mirror optimization for a 140 GHz TE_{22, 6} quasi-optical mode converter system 2017 Chin. Phys. B 26 074101

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Asymmetrical mirror optimization for a 140 GHz TE22, 6 quasi-optical mode converter system

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