VCSEl power-conversion efficiency improves to 45%

摘要

Promising developments in VCSEL technology, including power-conversion efficiency, single-mode beams, and flip-chip-mounted designs, may be significant factors enabling next-generation 3D sensors. Over the last few years, advances in laser technology originally developed for optical communications are now being leveraged in other high-volume market verticals, including consumer electronics. The vertical-cavity surface-emitting laser (VCSEL) heritage extends back to the pioneering work of Professor Iga in the mid-1970s, who first demonstrated the device structure, followed by Jack Jewell and his team at Bell Laboratories, who in the late 1980s fabricated one million VCSEL die on a single wafer.