强激光与粒子束, 2012, 24 (1): 157, 网络出版: 2012-02-14
95 GHz准光模式转换器实验研究
Quasi-optical mode converter for 95 GHz gyrotron
摘要
介绍了采用95 GHz准光模式转换器将TE62模式转换为高斯波束的实验测试结果。准光模式转换器由螺旋切口的Vlasov辐射器、一个准抛物柱面反射镜和两个相位修正镜组成。将半径5.62 mm圆波导内的TE62模式转换为束腰直径22.4 mm的高斯波束。实验采用毫米波天线近场扫描测试系统测试, 实验结果表明标量转换效率大于97%, 矢量转换效率大于88%。
Abstract
This paper presents the experimental results of a 95 GHz quasi-optical mode converter. The test system is a near-field scanning system based on millimeter wave antenna. The mode converter includes a Vlasov launcher, a quasi-elliptical mirror and two phase correcting mirrors. It converts the TE62 mode in a circular waveguide of 5.62 mm radius into a Gaussian mode of 22.4 mm waist. The scalar correlation coefficient is 97.43%, and the vector correlation coefficient is 88.65%.
屈劲, 薛长江, 潘文武, 陈鑫, 余川, 施美友, 陈世韬. 95 GHz准光模式转换器实验研究[J]. 强激光与粒子束, 2012, 24(1): 157. Qu Jin, Xue Changjiang, Pan Wenwu, Chen Xin, Yu Chuan, Shi Meiyou, Chen Shitao. Quasi-optical mode converter for 95 GHz gyrotron[J]. High Power Laser and Particle Beams, 2012, 24(1): 157.