Light-current characteristics of vertical-cavity surface-emitting lasers with external optical feedback |
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| Zhang Xing, Ning Yongqiang, Sun Yanfang, Zhang Yan, Liu Guangyu, Peng Hangyu, Li Zaijin, Qin Li, Liu Yun, Wang Lijun. Light-current characteristics of vertical-cavity surface-emitting lasers with external optical feedback[J]. Journal of Semiconductors, 2010, 31(3): 034006. doi: 10.1088/1674-4926/31/3/034006 Zhang X, Ning Y Q, Sun Y F, Zhang Y, Liu G Y, Peng H Y, Li Z J, Qin L, Liu Y, Wang L J. Light-current characteristics of vertical-cavity surface-emitting lasers with external optical feedback[J]. J. Semicond., 2010, 31(3): 034006. doi: 10.1088/1674-4926/31/3/034006.Export: BibTex EndNote |
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| Authors: | Zhang Xing Ning Yongqiang Sun Yanfang Zhang Yan Liu Guangyu Peng Hangyu Li Zaijin Qin Li Liu Yun Wang Lijun |
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| Affiliation: | Laboratory of Excited State Processes, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China;Graduate University of the Chinese Academy of Sciences, Beijing 100049, China;Laboratory of Excited State Processes, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China;Laboratory of Excited State Processes, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China;Laboratory of Excited State Processes, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China;Graduate University of the Chinese Academy of Sciences, Beijing 100049, China;Laboratory of Excited State Processes, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China;Graduate University of the Chinese Academy of Sciences, Beijing 100049, China;Laboratory of Excited State Processes, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China;Graduate University of the Chinese Academy of Sciences, Beijing 100049, China;Laboratory of Excited State Processes, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China;Graduate University of the Chinese Academy of Sciences, Beijing 100049, China;Laboratory of Excited State Processes, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China;Laboratory of Excited State Processes, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China;Laboratory of Excited State Processes, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China |
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| Abstract: | The influence of external optical feedback (OFB) on the light-current characteristics of the vertical-cavity surface-emitting lasers (VCSELs) was investigated theoretically and experimentally. By calculating the OFB sensitivity parameter, the OFB sensibility of the VCSELs was compared with the edge emitting lasers. Based on the compound cavity theory, the light-current characteristic parameters of the VCSELs with external OFB, such as the threshold current and the slope efficiency, were calculated. The experimental results indicated that the threshold current of the VCSELs with different DBR reflectivities decreased to different degrees, accompanied with a decrease of slope efficiency when under 10% feedback ratio of the external OFB, which is in good agreement with the theoretical calculation. |
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| Keywords: | semiconductor lasers vertical-cavity surface-emitting lasers optical feedback light-current characteristics eedback ratio |
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