Extensive analysis of the degradation of blu-ray laser diodes

Matteo Meneghini, Gaudenzio Meneghesso*, Nicola Trivellin, Enrico Zanoni, Kenji Orita, Masaaki Yuri, Daisuke Ueda

*Corresponding author for this work

研究成果: Article同行評審

34 引文 斯高帕斯(Scopus)


This letter describes an analysis of the degradation of InGaN-based laser diodes. The influence of current, temperature, and optical power level on the degradation kinetics has been analyzed by means of a wide set of stress tests carried out under different operating conditions. We demonstrate the following: 1) the degradation rate is strongly related to the operating current level; 2) high-temperature stress does not determine significant degradation of lasers characteristics; and 3) the intensity of the optical field does not significantly influence the degradation rate. Degradation process is found to be electrothermally activated and is ascribed to the increase of the nonradiative recombination rate in the active layer, with subsequent decrease of the efficiency of the devices.

頁(從 - 到)578-581
期刊IEEE Electron Device Letters
出版狀態Published - 1 六月 2008

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