Osram SPL S1L90A_3 A01 and SPL S4L90A_3 A01 LiDAR lasers for autonomous vehicles

Osram has released two AEC-Q102 qualified four- and single-channel pulse lasers for LiDAR (light detection and ranging) applications — the SPL S4L90A_3 A01 and SPL S1L90A_3 A01 — offering efficiency of up to 33%.

A central aspect in terms of safety in autonomous vehicles is the range of the infrared light source; a powerful laser is required to be able to look as far ahead as possible. Both products showcase an output power of 125 W at 40 A per channel. Due to low thermal resistance of 30 K/W for the single-channel-version (SPL S1L90A_3 A01) and 17 K/W for the four-channel device (SPL S4L90A_3 A01), heat is easily dissipated from the component, even at high currents.

The four-channel version features a chip with four emission areas that deliver an optical power at 480 W. The laser enables a long detection range at a size of 3.35 x 2.45 x 0.65 mm, making it only slightly larger than the single-channel version (2 x 2.3 x 0.65 mm).

Due to the SMT lasers’ high power and extended duty cycle range of up to 0.2%, users can expect to reach a long detection range with good resolution. Additionally, eye-safe system designs can be achieved with the high-power 905 nm products. The package design also enables short pulse widths of around 2 ns.