Experimental and numerical study on AlGaInAs/AlGaAs distributed feedback lasers with GaInP gratings
Source abstract
Abstract
Ridge-waveguide AlGaInAs/AlGaAs distributed feedback lasers with lattice-matched GaInP gratings were fabricated and their light-current characteristics, spectrum and far-field characteristics were measured. On the basis of our experimental results we analyze the effect of the electron stopper layer on light-current performance using the commercial laser simulation software PICS3D. The simulator is based on the self-consistent solution of drift diffusion equations, the Schrodinger equation, and the photon rate equation. The simulation results suggest that, with the use of a 80 nm-width p-doped Al0.6GaAs electron stopper layer, the slope efficiency can be increased and the threshold current can be reduced by more than 10 mA.
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Research context
OpenAlex topics: Semiconductor Quantum Structures and Devices · Semiconductor Lasers and Optical Devices · Spectroscopy and Laser Applications
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