{"title":"Threshold for conjugation of speckle beams by a double phase conjugate mirror","authors":"O. Lyubomudrov, V. Shkunov","doi":"10.1070/QE1992V022N11ABEH003660","DOIUrl":null,"url":null,"abstract":"We find the theoretical threshold for phase conjugation of a pump beam with speckle structure by a double photorefractive phase conjugate mirror based on transmitting and reflecting gratings of a diffusion type. For a speckle beam the nonlinear dependence of the profile of light-induced optical nonuniformity on the local intensity profile reduces the readout efficiency and raises the threshold by as much as a factor of 1.5.","PeriodicalId":21878,"journal":{"name":"Soviet Journal of Quantum Electronics","volume":"22 1","pages":"1027-1031"},"PeriodicalIF":0.0000,"publicationDate":"1992-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Soviet Journal of Quantum Electronics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1070/QE1992V022N11ABEH003660","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
Abstract
We find the theoretical threshold for phase conjugation of a pump beam with speckle structure by a double photorefractive phase conjugate mirror based on transmitting and reflecting gratings of a diffusion type. For a speckle beam the nonlinear dependence of the profile of light-induced optical nonuniformity on the local intensity profile reduces the readout efficiency and raises the threshold by as much as a factor of 1.5.
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