Theoretical and Experimental Analysis of Temperature-Insensitive 655-nm Resonant-Cavity LEDs
Jun-Rong Chen; Yi-An Chang; Hao-Chung Kuo; Tien-Chang Lu; Yen-Kuang Kuo; Shing-Chung Wang
Lasers and Electro-Optics - Pacific Rim, 2007. CLEO/Pacific Rim 2007. Conference on
Volume , Issue , 26-31 Aug. 2007 Page(s):1 - 2
Digital Object Identifier   10.1109/CLEOPR.2007.4391580
Summary:Visible InGaP/InGaAlP resonant-cavity light-emitting diodes with low temperature sensitivity output characteristics were demonstrated. By means of extending the resonant cavity to a thickness of three wavelength (3 lambda), the degree of power variation between 25 and 95degC for the devices biased at 20 mA was apparently reduced from -2.1 dB for the standard structure design (1-lambda cavity) to -0.6 dB. Numerical simulation showed that the insensitive temperature dependence of output characteristics was attributed to the reduced electron leakage current.

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