Fabrication and Characterization of Temperature Insensitive 660-nm Resonant-Cavity LEDs

Jun-Rong Chen, Tsung-Shine Ko, Tien-Chang Lu, Yi-An Chang, Hao-Chung Kuo, Yen-Kuang Kuo, Jui-Yen Tsai, Li-Wen Laih, Shing-Chung Wang
<span title="">2008</span> <i title="Institute of Electrical and Electronics Engineers (IEEE)"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/eo7ayeunzba63co4cxddmhlwma" style="color: black;">Journal of Lightwave Technology</a> </i> &nbsp;
InGaP/AlGaInP 660-nm resonant-cavity light-emitting diodes (RCLEDs) with stable temperature characteristics have been achieved by extending the resonant cavity length from one optical wavelength (1 ) to three optical wavelengths (3 ) and tripling the number of quantum wells. When the operation temperature increases from 25 C to 95 C, the degree of power variation at 20 mA is reduced from 2.1 dB to 0.6 dB for the conventional 1-cavity RCLEDs and 3-cavity RCLEDs, respectively. In order to
more &raquo; ... t the temperature-dependent experimental results, advanced device simulation is applied to model the RCLEDs with different cavity designs. According to the numerical simulation results, we deduce that the stable temperature-dependent output performance should originate from the reduction of electron leakage current and thermally enhanced hole transport for the 3-cavity AlGaInP RCLEDs. Index Terms-Leakage current, modeling, polymethyl methacrylate plastic optic fiber (POF), resonant-cavity light-emitting diode (RCLED), semiconductor device.
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