480W SMD laser for automotive lidar

Author: EIS Release Date: Sep 25, 2019

Two high-power infra-red lasers are available for lidar from Osram – AEC-Q102 qualified four-channel and a single-channel pulsed lasers.

Output is 125Watt/diode, 40A/diode, and efficiency is up to 33%. 480W total is possible with the quad diode device.

Packaging is surface-mount: 3.35 x 2.45 x 0.65mm for the quad (SPL S4L90A_3 A01) and 2.0 x 2.3 x 0.65mm for the single (SPL S1L90A_3 A01).

Handling this power is a thermal resitance of 30K/W for the single and 17K/W for the four-channel device.

“Thanks to their higher power and duty cycle range of up to 0.2%, our customers can reach a longer detection range in the application and better resolution,” according to Osram product manager explains Rena Lim. “Due to its excellent package design, the products enable short pulse widths of around 2ns. Eye-safe system designs can be achieved with these 905nm products.”

Osram has been development and producing special infra-red lasers for over 15 years. “There are now more than ten million units in the field, without a single chip defect,” it said.

On the subject of autonomous vehicles, according to Osram: “There is now widespread agreement that only a combinationof lidar, camera and radar is able to fulfil autonomous driving requirements. They must work in all lighting and weather conditions, identify potential hazards and obstacles in time to take appropriate driving decisions.”