Faculté des sciences

Microsecond time scale lateral-mode dynamics in a narrow stripe InGaN laser

Eichler, Christoph ; Hofstetter, Daniel ; Chow, Weng W. ; Miller, Stephan ; Weimar, Andreas ; Lell, Alfred ; Härle, Volker

In: Applied Physics Letters, 2004, vol. 84, p. 2473-2475

Time-resolved measurements of the spectrum and the far field of InGaN-based laser diodes show lateral-mode changes and gradual tilting of the far field on a microsecond time scale. Numerical simulations based on a microscopic theory are in good agreement with the measurements. The observed effects are attributed to lateral carrier diffusion in combination with thermal lensing. Plus

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    Summary
    Time-resolved measurements of the spectrum and the far field of InGaN-based laser diodes show lateral-mode changes and gradual tilting of the far field on a microsecond time scale. Numerical simulations based on a microscopic theory are in good agreement with the measurements. The observed effects are attributed to lateral carrier diffusion in combination with thermal lensing.