Our high-speed 850nm multimode VCSEL chips are designed to meet stringent specifications for high-speed data communications. This high performance, high reliability device is engineered with low electrical parasitics for data rates up to 10Gb/s. The VCSEL operates in multiple transverse and single longitudinal modes, and emits a circular symmetric beam with low divergence that can be efficiently coupled into 50/125 and 62.5/125µm multimode fibers. The chip design allows flexible linear array combinations in common cathode configuration with a pitch of 250 microns between individual channels