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LI Xiao-feng, PAN Wei, LUO Bin, ZHAO Zheng, DENG Guo. Study on multimode relaxation oscillation of VCSELs and EELs[J]. LASER TECHNOLOGY, 2004, 28(3): 248-250,258.
Citation: LI Xiao-feng, PAN Wei, LUO Bin, ZHAO Zheng, DENG Guo. Study on multimode relaxation oscillation of VCSELs and EELs[J]. LASER TECHNOLOGY, 2004, 28(3): 248-250,258.
shu

Study on multimode relaxation oscillation of VCSELs and EELs

  • 1.

    Institute of Computer Communication Engineering, Southwest Jiaotong University, Chengdu 610031, China;

  • 2.

    National Key Laboratory of Broad-band Fiber Transmission and Communication Network Technology, University of Electronic Science and Technology, Chengdu 610054, China;

  • 3.

    Institute of Science, Southwest Jiaotong University, Chengdu 610031, China

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  • Received Date: June 08, 2003
  • Revised Date: August 10, 2003
  • Published Date: May 24, 2004
    Graphical Abstract
    • Abstract
  • Based on multimode rate equations,the relaxation oscillation of vertical-cavity surface-emitting lasers(VCSELs)and edge-emitting lasers(EELs)has been studied through SIMULINK provided by MATLAB.The results show that EELs with multiple longitudinal modes have higher relaxation oscillation frequency and shorter turn-on delay time,which are relatively unchanged for VCSELs case.The simulation results also verify the following conclusions:firstly,VCSELs has the merits of single-mode working and high-speed modulation; secondly,the devices with higher bias current or larger spontaneous emission factor exhibit better temporary characteristics;thirdly,the variation rate of VCSELs'side-mode suppression ratio(SMSR)with bias current is higher than that of EELs.Furthermore,the side-mode intensities augment at the same rate with increasing the spontaneous emission factor,and the main-mode intensity decreases accordingly.Controlling this factor effectively can optimize the single-mode characteristic of VCSELs.
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    • References (8)
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