Optical injection locking of transverse modes in 1.3-mu m wavelength coupled-VCSEL arrays

Optical injection locking of 1.3-mu m 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. (C) 2014 Optical Society of America