W. Herzog, M. Unlu, B. Goldberg, G. H. Rhodes, C. Harder
{"title":"Near-field analysis of beam properties of InGaAs ridge lasers","authors":"W. Herzog, M. Unlu, B. Goldberg, G. H. Rhodes, C. Harder","doi":"10.1109/LEOS.1996.565149","DOIUrl":null,"url":null,"abstract":"We report mode structure and beam propagation analysis of high power strained (In,Ga)As quantum well lasers using the super-resolution capabilities of near-field scanning optical microscopy (NSOM). We are able to directly measure the optical beam waist and astigmatism by imaging the output of the laser diode at various heights above the device facet. In the near-field we observe spatial shifts in the position of the optical field between different spectral components of the laser diode emission.","PeriodicalId":332726,"journal":{"name":"Conference Proceedings LEOS'96 9th Annual Meeting IEEE Lasers and Electro-Optics Society","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"1996-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Conference Proceedings LEOS'96 9th Annual Meeting IEEE Lasers and Electro-Optics Society","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/LEOS.1996.565149","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 report mode structure and beam propagation analysis of high power strained (In,Ga)As quantum well lasers using the super-resolution capabilities of near-field scanning optical microscopy (NSOM). We are able to directly measure the optical beam waist and astigmatism by imaging the output of the laser diode at various heights above the device facet. In the near-field we observe spatial shifts in the position of the optical field between different spectral components of the laser diode emission.
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