Experimental study demonstrates spatial beam overlap impacts optical injection locking in 1.3-micrometer coupled-VCSEL arrays, indicating mechanisms for controlling laser transverse modes.
Optical injection locking of 1.3-µm phase-locked VCSEL arrays defined by patterned tunnel junctions and wafer fusion is investigated experimentally and theoretically. The impact of the overlap between the master laser injection beam and the injected modes is demonstrated and explained with a rate equation model that incorporates the spatial variations.
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Long et al. (2014) studied this question.
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