M. Kulygin, I. Litovsky, A. Chirkov, I. N. Shevelev, G. Kalynova, M. Shmelev
{"title":"Terahertz Active Nanosecond Gigawatt Compressor Thermal Feasibility","authors":"M. Kulygin, I. Litovsky, A. Chirkov, I. N. Shevelev, G. Kalynova, M. Shmelev","doi":"10.1109/comcas52219.2021.9629071","DOIUrl":null,"url":null,"abstract":"We discuss an opportunity of an active compressor to reach gigawatt power in nanosecond pulses compressing microsecond pulsed gyrotron radiation in a terahertz band. The compressor is based on a classic three-mirror circular scheme with an active switching element of plain gallium arsenide driven by picosecond optical laser pulse. The input radiation from a gyrotron is introduced to a corrugated coupling mirror. A dummy load absorbs the spurious spatial harmonics. While the idea of reaching compression ratio over 100, i.e. sub-gigawatt and even gigawatt peak output power, seems to be feasible [1], there are several thermal problems at different stages of compression. The results of the research for compromise solutions for heat removal and optimal pumping modes of the compressor are presented.","PeriodicalId":354885,"journal":{"name":"2021 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2021-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2021 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/comcas52219.2021.9629071","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 3
Abstract
We discuss an opportunity of an active compressor to reach gigawatt power in nanosecond pulses compressing microsecond pulsed gyrotron radiation in a terahertz band. The compressor is based on a classic three-mirror circular scheme with an active switching element of plain gallium arsenide driven by picosecond optical laser pulse. The input radiation from a gyrotron is introduced to a corrugated coupling mirror. A dummy load absorbs the spurious spatial harmonics. While the idea of reaching compression ratio over 100, i.e. sub-gigawatt and even gigawatt peak output power, seems to be feasible [1], there are several thermal problems at different stages of compression. The results of the research for compromise solutions for heat removal and optimal pumping modes of the compressor are presented.
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