{"title":"微毫米波频谱分析仪使用倾斜全息光栅","authors":"Max K. Lee, G. Little","doi":"10.1117/12.216812","DOIUrl":null,"url":null,"abstract":"A concept for performing spectrum analysis of micro-millimeter wave signals using a novel optical grating approach is described. In the approach an optical wave is temporally modulated with the micro-millimeter wave signal, diffracted from a slanted holographic grating, and focused using a simple lens. The slanted grating acts to convert the temporal modulation into spatial form and the lens produces the power spectrum of the signal in its focal plane. Performance levels projected with a 30 cm grating include resolution of 1 GHz and bandwidth of 200 GHz. Use of in-fiber gratings in a raster format will enable resolution of 2.5 MHz.","PeriodicalId":316044,"journal":{"name":"Optical Engineering Midwest","volume":"42 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1995-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Micromillimeter wave spectrum analyser using slanted holographic gratings\",\"authors\":\"Max K. Lee, G. Little\",\"doi\":\"10.1117/12.216812\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A concept for performing spectrum analysis of micro-millimeter wave signals using a novel optical grating approach is described. In the approach an optical wave is temporally modulated with the micro-millimeter wave signal, diffracted from a slanted holographic grating, and focused using a simple lens. The slanted grating acts to convert the temporal modulation into spatial form and the lens produces the power spectrum of the signal in its focal plane. Performance levels projected with a 30 cm grating include resolution of 1 GHz and bandwidth of 200 GHz. Use of in-fiber gratings in a raster format will enable resolution of 2.5 MHz.\",\"PeriodicalId\":316044,\"journal\":{\"name\":\"Optical Engineering Midwest\",\"volume\":\"42 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1995-08-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Optical Engineering Midwest\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1117/12.216812\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Optical Engineering Midwest","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1117/12.216812","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Micromillimeter wave spectrum analyser using slanted holographic gratings
A concept for performing spectrum analysis of micro-millimeter wave signals using a novel optical grating approach is described. In the approach an optical wave is temporally modulated with the micro-millimeter wave signal, diffracted from a slanted holographic grating, and focused using a simple lens. The slanted grating acts to convert the temporal modulation into spatial form and the lens produces the power spectrum of the signal in its focal plane. Performance levels projected with a 30 cm grating include resolution of 1 GHz and bandwidth of 200 GHz. Use of in-fiber gratings in a raster format will enable resolution of 2.5 MHz.
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