Faculté des sciences

Time resolved study of laser diode characteristics during pulsed operation

Eichler, Christoph ; Schad, Sven-Silvius ; Seyboth, Matthias ; Habel, Frank ; Scherer, Marcus ; Miller, Stephan ; Weimar, Andreas ; Lell, Alfred ; Härle, Volker ; Hofstetter, Daniel

In: Physica status solidi (c), 2003, vol. 0, no. 7, p. 2283-2286

Under pulsed operation, time dependent spectral and electro-optical measurements on GaN-based laser diodes show a considerable red shift in the emission wavelength and a decreasing voltage drop across the device. These changes appear on a rather short time scale in the microsecond range. During a 3.7 microsecond long pulse, a temperature increase of approximately 50 K is obtained using different... Plus

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    Summary
    Under pulsed operation, time dependent spectral and electro-optical measurements on GaN-based laser diodes show a considerable red shift in the emission wavelength and a decreasing voltage drop across the device. These changes appear on a rather short time scale in the microsecond range. During a 3.7 microsecond long pulse, a temperature increase of approximately 50 K is obtained using different experimental methods. This value agrees well with numerical simulations based on the thermal properties of the material.