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The beam properties of 980-nm tapered lasers with separate current drives for the ridge waveguide and tapered sections are analyzed by means of a comparison between simulations and experimental results. The simulations are performed with a new model for this type of tapered lasers, providing a good qualitative agreement with experiments. The observed improvement in the beam quality by a stronger pumping...
A simulation model for tapered lasers with separated contacts has been developed. The model has been used to simulate 980 nm In-Ga-As devices with separated injection of the ridge-waveguide and taper sections. A good qualitative agreement with experimental results has been obtained. The physical origin of the observed improvements in the beam quality by stronger pumping of the ridge waveguide section...
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