AMS Osram has added a higher-performance infrared laser targeting cost-conscious consumer and other applications with their new 75-watt edge-emitting laser in a radial plastic package. The SPL PL90AT03’s high peak output power and narrow output aperture result in superior performance in long-distance ranging applications, as well as easier optical integration. Specifically, it features a peak wavelength of 905 nm and a spectral bandwidth (FWHM) of 5 nm. Beam divergence is just 12° (parallel) × 25° (perpendicular), enabling efficient beam shaping with its small 110-µm aperture.
The new diode’s low-cost plastic package is ideal for use in high-volume applications. Featuring the same footprint as the previous generation of SPL PL90 series laser diodes, the new SPL PL90AT03 provides an easy upgrade to higher efficiency, thanks to its state-of-the-art chip technology. It produces a narrower emission width and enables easier optical design because of the device’s 50-per-cent smaller aperture versus its predecessor.
The single-channel diode features multi-junction technology comprising three vertically-stacked emitters in a single laser die mounted inside the radial plastic package. This technology enables the laser to produce 75-watt optical peak output power in a 30-ns pulse at the device’s maximum forward current of 25 A. The laser diode can produce short laser pulses ranging from a few to 100 ns.
The high optical power output in a narrow emission area makes the new laser diode well suited for ranging and distance-measurement applications that operate over long distance, such as robots; drones, and home- and factory-automation equipment. In time-of-flight sensing and lidar applications, the diode’s high performance enables the production of more precise and accurate depth maps for 3D optical sensing and simultaneous localization and mapping (SLAM) systems.
Osram Opto Semiconductors offers the strongest lidar portfolio on the market with VCSELs and EELs. The variety of EEL package designs—TO, plastic, SMT—allows application flexibility and serves a great spectrum of different power classes.