Osram Opto Semiconductors has announced a laser with 480 watts peak power for LiDAR systems for 2019. It enables longer ranges and a larger field of view. The driver is being developed in cooperation with GaN Systems.
Scanning LiDAR systems are a key technology for driver assistance systems. Their range is currently around 200 meters and is to be further extended. In order not to endanger eye safety, a short pulse operation with high peak power is necessary.
Osram OS is developing a pulsed 4-channel SMT laser with 120 watts of peak power per channel. The driver electronics are being developed in cooperation with the power semiconductor manufacturer GaN Systems.
According to the manufacturer, each channel is driven with an amplitude of 40 A and a rise time of only one nanosecond. The high peak power then can be modulated at low-duty cycles to produce high resolution 3D cloud points at long range for new LiDAR designs. The four channels enable the operation of four lasers and thus a larger field of view than is possible with current technology.
Osram OS has apparently already selected a laser diode for the announced system. The company recently added the SPL DS90A_3, an IR diode with three emitters designed for operation with 40 A pulses at 120 W, to its laser range.