Optimization of Barrier Structure for Strain-Compensated Multiple-Quantum-Well AlGaInP Laser Diodes

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概要

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• A theoretical analysis of a strain-compensated multiple-quantum-well (MQW) AlGaInP laser diode (LD) has been conducted to minimize the operation current and enhance the operation temperature. The effect of the barrier height on the tensile-strain quantum barriers was studied under the same optical confinement and emission wavelength. The simulation results suggest that a more uniform and higher carrier distribution inside the MQW region can be obtained for a lower barrier height owing to the improvement in carrier injection. The performance of the AlGaInP LD is thus improved. However, when the barrier height is too small, higher spontaneous rates in the quantum barrier region deteriorate the LD performance instead. Theoretical analysis shows that an Al composition of 0.1 for the 0.5%-tensile-strain AlxGayIn1-x-yP barrier is the optimal value for strain-compensated MQW AlGaInP LDs.

• Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
• 2006-10-15

著者

• Sun Yu-Lung

  Institute of Photonics, National Changhua University of Education, 1 Jen-Der Rd., Changhua 50058, Taiwan

• Huang Man-Fang

  Institute of Photonics, National Changhua University of Education, 1 Jen-Der Rd., Changhua 50058, Taiwan

関連論文

• Optimization of Barrier Structure for Strain-Compensated Multiple-Quantum-Well AlGaInP Laser Diodes

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