Abstract
A bottom-emitting vertical-cavity surface-emitting laser array with a nonuniform linear arrangement is reported to realize emission with a Gaussian far-field distribution. This array is composed of five symmetrically arranged elements of , , and diameter, with center spacing of and , respectively. An output power of with a high power density of is obtained. The divergence angle is below in the range of operating current from to . The theoretical simulation of the near-field and the far-field distribution is in good agreement with the experimental result. The comparison between this nonuniform linear array, the single device, and the conventional two-dimensional array is carried out to demonstrate the good performance of the linear array.
© 2009 Optical Society of America
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