V. Smirnov, O. Mokhun, Helene Mingareev, L. Glebova, R. Vasilyeu, A. Glebov, L. Glebov
Volume Bragg Gratings (VBGs) in photo-thermo-refractive glass demonstrate outstanding properties in visible and near IR spectral region providing extremely high spectral and angular selectivity, and diffraction efficiency exceeding 99%. This paper reviews recent VBG technology improvements as well as various results on VBG applications that can lead to major improvements of fiber, solid-state, and diode laser system performance in 2 3 micron spectral range.
{"title":"High efficiency volume Bragg gratings for 2-3 micron spectral region (Conference Presentation)","authors":"V. Smirnov, O. Mokhun, Helene Mingareev, L. Glebova, R. Vasilyeu, A. Glebov, L. Glebov","doi":"10.1117/12.2521476","DOIUrl":"https://doi.org/10.1117/12.2521476","url":null,"abstract":"Volume Bragg Gratings (VBGs) in photo-thermo-refractive glass demonstrate outstanding properties in visible and near IR spectral region providing extremely high spectral and angular selectivity, and diffraction efficiency exceeding 99%. This paper reviews recent VBG technology improvements as well as various results on VBG applications that can lead to major improvements of fiber, solid-state, and diode laser system performance in 2 3 micron spectral range.","PeriodicalId":423711,"journal":{"name":"Laser Technology for Defense and Security XV","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116646979","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
S. Trivedi, U. Hommerich, A. Kabir, Althea Bluiett
{"title":"Materials development and optical properties of Pr-doped ternary lead halides (TlPb2Br5, KPb2Br5, CsPbCl3) for infrared laser applications (Conference Presentation)","authors":"S. Trivedi, U. Hommerich, A. Kabir, Althea Bluiett","doi":"10.1117/12.2521674","DOIUrl":"https://doi.org/10.1117/12.2521674","url":null,"abstract":"","PeriodicalId":423711,"journal":{"name":"Laser Technology for Defense and Security XV","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130003064","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
P. Dragic, M. Cavillon, C. Kucera, B. Kokuoz, T. Hawkins, J. Ballato
{"title":"Progress towards the development of intrinsically low-nonlinearity optical fibers (Conference Presentation)","authors":"P. Dragic, M. Cavillon, C. Kucera, B. Kokuoz, T. Hawkins, J. Ballato","doi":"10.1117/12.2521950","DOIUrl":"https://doi.org/10.1117/12.2521950","url":null,"abstract":"","PeriodicalId":423711,"journal":{"name":"Laser Technology for Defense and Security XV","volume":"124 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129179568","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Recent progress in development of Mid–IR lasers at ~2.8 µm and ~3.5 µm based on commercial Er:ZBLAN fibers has enabled variety of environmental sensing, defense and medical applications. This development faces a few major challenges, among which are relatively low laser efficiency (stemming from the naturally high quantum defect of laser operation) and power scaling limitation due to output self-pulsing (perceived to be coming from presence of clustering or ion pairs in a highly doped fiber, which act as saturable absorbers).We report on a study of the power scaling of a 976 nm diode-pumped double-clad Er:ZBLAN fiber laser at the ~2.8 µm, 4I11/2-4I13/2 transition. The passively cooled 7% Er-doped fluoride fiber laser was shown to achieve slope efficiency over 25% and 50 W with respect to launched pump power in both CW and Quasi-CW regimes of free-running operation. Laser power scaling was found to be limited by available 976 nm diode pump power.
{"title":"A power scaled diode cladding pumped 2.8 µm Er:ZBLAN fiber laser (Conference Presentation)","authors":"G. Newburgh, M. Dubinskii, Jun Zhang, W. Lu","doi":"10.1117/12.2522816","DOIUrl":"https://doi.org/10.1117/12.2522816","url":null,"abstract":"Recent progress in development of Mid–IR lasers at ~2.8 µm and ~3.5 µm based on commercial Er:ZBLAN fibers has enabled variety of environmental sensing, defense and medical applications. This development faces a few major challenges, among which are relatively low laser efficiency (stemming from the naturally high quantum defect of laser operation) and power scaling limitation due to output self-pulsing (perceived to be coming from presence of clustering or ion pairs in a highly doped fiber, which act as saturable absorbers).We report on a study of the power scaling of a 976 nm diode-pumped double-clad Er:ZBLAN fiber laser at the ~2.8 µm, 4I11/2-4I13/2 transition. The passively cooled 7% Er-doped fluoride fiber laser was shown to achieve slope efficiency over 25% and 50 W with respect to launched pump power in both CW and Quasi-CW regimes of free-running operation. Laser power scaling was found to be limited by available 976 nm diode pump power.","PeriodicalId":423711,"journal":{"name":"Laser Technology for Defense and Security XV","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131089717","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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