Chin. J. Semicond. > 2007, Volume 28 > Issue S1 > 44-47

Self-Pulsation Dynamics in GaAs/AIGaAs Quantum Cascade Lasers

Liu Junqi, Liu Fengqi, Li Lu, Shao Ye, Guo Yu and Wang Zhanguo

+ Author Affiliations

PDF

Abstract: Quasi-continuous wave lasing spectra of GaAs/A1GaAs quantum cascade lasers emitting at 9.76μm are characterized by step.scan time.resolved Fourier transform infrared spectroscopy.Pronounced self·pulsation in stacked emission spectra is observed in the driving current duration.Self·heating accumulation in the active region affects the electron relaxation and transport greatly.Thermally-induced carrier occupation of the higher sublevels in an injector can leak out through a resonant condition with the continuum states above the next injector,which will be facilitated by the fourth sublevel of the coupled quantum wells active region.The leaking process arising from the periodic breaking and recovering of resonant tunneling accounts for the physical mechanism of the selfpulsed effect in stacked emission spectra.

Key words: quantum cascade laserself-pulsationmolecular beam epitaxy

  • Search

    Advanced Search >>

    Article Metrics

    Article views: 1995 Times PDF downloads: 489 Times Cited by: 0 Times

    History

    Received: 27 May 2016 Revised: Online: Published: 01 January 2007

    Catalog

      Email This Article

      User name:
      Email:*请输入正确邮箱
      Code:*验证码错误
      Liu Junqi, Liu Fengqi, Li Lu, Shao Ye, Guo Yu, Wang Zhanguo. Self-Pulsation Dynamics in GaAs/AIGaAs Quantum Cascade Lasers[J]. Journal of Semiconductors, 2007, In Press. Liu J Q, Liu F Q, Li L, Shao Y, Guo Y, Wang Z G. Self-Pulsation Dynamics in GaAs/AIGaAs Quantum Cascade Lasers[J]. Chin. J. Semicond., 2007, 28(S1): 44.Export: BibTex EndNote
      Citation:
      Liu Junqi, Liu Fengqi, Li Lu, Shao Ye, Guo Yu, Wang Zhanguo. Self-Pulsation Dynamics in GaAs/AIGaAs Quantum Cascade Lasers[J]. Journal of Semiconductors, 2007, In Press.

      Liu J Q, Liu F Q, Li L, Shao Y, Guo Y, Wang Z G. Self-Pulsation Dynamics in GaAs/AIGaAs Quantum Cascade Lasers[J]. Chin. J. Semicond., 2007, 28(S1): 44.
      Export: BibTex EndNote

      Self-Pulsation Dynamics in GaAs/AIGaAs Quantum Cascade Lasers

      • Received Date: 2016-05-27
      • Published Date: 2016-04-28

      Catalog

        /

        DownLoad:  Full-Size Img  PowerPoint
        Return
        Return