Four-channel pulse laser for lidar applications is AEC-qualified
The requirements for safety systems in (semi-)autonomous vehicles are complex. They must be reliable, function in all lighting and weather conditions, detect potential hazards and obstacles in good time and take any necessary measures. There is now consensus that a combination of lidar, camera and radar can provide all the technical requirements required for autonomous driving.
Over ten years ago, Osram launched the first 905 nm laser on the market. Today, this is the most commonly used wavelength in lidar solutions. Compared to 1550 nm solutions, for example, there is an advantage in terms of total system costs.
A central aspect in terms of safety is the range of the infrared light source used. In order to be able to look as far ahead as possible, a powerful laser is required. The two new products convince with an output of 125 watts at 40 A per channel and, thanks to the particularly low thermal resistance of only 30 K/W for the single-channel version (SPL S1L90A_3) and 17 K/W for the four-channel version (SPL S4L90A_3), enable simple heat dissipation from the component – even at high currents.
The four-channel version features a chip with four emission ranges that delivers outstanding optical performance at 480 watts. With a size of only 3.35 mm x 2.45 mm x 0.65 mm, the component provides a much larger detection range and is only slightly larger than the single-channel version (2.0 mm x 2.3 mm x 0.65 mm).
The two new high-performance lasers expand Osram’s photonics portfolio for lidar applications and make system integration much easier for customers with the SMT (Surface Mountable Technology) package. Thanks to their higher performance and the extended duty cycle range of up to 0.2 %, they enable a larger detection range in the application and better resolution for the lidar system. explains Rena Lim, Product Manager at Osram Opto Semiconductors. The products also meet all eye safety requirements. Thanks to the special housing design, short pulse lengths of 2 ns are possible.
More information: www.osram.com/os/news-and-events/success-stories/index.jsp
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