{"title":"Ultrafast field-polarization dynamics in an optically pumped semiconductor microcavity laser","authors":"E. Blansett, D. McAlister, M. Raymer","doi":"10.1109/QELS.2001.962152","DOIUrl":null,"url":null,"abstract":"Summary form only given. The polarization properties of vertical cavity surface emitting lasers (VCSEL) originate in the change of electron total angular momentum J/sub z/ projected along the vertical axis for transitions from the conduction to the valence band. For quantum wells, J/sub z/=/spl plusmn/1/2 for the conduction band, and J/sub z/=/spl plusmn/3/2 for the heavy hole valence band, the highest energy valence band in unstrained quantum wells. The dipole allowed transitions are between J/sub z/=-1/2 and J/sub z/=-3/2 producing right circularly polarized light and between J/sub z/=+1/2 and J/sub z/=+3/2 producing left circularly polarized light. In CW, electrically pumped VCSELs, polarization states and fluctuations are well described by a model based on these transitions (San Miguel et al, 1995). We are investigating the polarization properties of VCSELs optically pumped with ultrashort pulses (<1 ps) which allows us to control the relative population of the angular momentum states and monitor the development of the intensity, noise, and correlations of the polarized-modes as a function of time.","PeriodicalId":21999,"journal":{"name":"Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2001-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/QELS.2001.962152","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Summary form only given. The polarization properties of vertical cavity surface emitting lasers (VCSEL) originate in the change of electron total angular momentum J/sub z/ projected along the vertical axis for transitions from the conduction to the valence band. For quantum wells, J/sub z/=/spl plusmn/1/2 for the conduction band, and J/sub z/=/spl plusmn/3/2 for the heavy hole valence band, the highest energy valence band in unstrained quantum wells. The dipole allowed transitions are between J/sub z/=-1/2 and J/sub z/=-3/2 producing right circularly polarized light and between J/sub z/=+1/2 and J/sub z/=+3/2 producing left circularly polarized light. In CW, electrically pumped VCSELs, polarization states and fluctuations are well described by a model based on these transitions (San Miguel et al, 1995). We are investigating the polarization properties of VCSELs optically pumped with ultrashort pulses (<1 ps) which allows us to control the relative population of the angular momentum states and monitor the development of the intensity, noise, and correlations of the polarized-modes as a function of time.