Quad-laser chip targets LiDAR

January 27, 2017 // By Julien Happich
The 1X4 pulsed laser diode array launched by Excelitas Technologies combines high-efficiency, multi-cavity laser chip technology with small form-factor SMD packaging for high reliability LiDAR applications.

Unlike single-pixel lasers, the 1X4 linear configuration enables each pixel to be situated in very close proximity to its neighbour, minimizing space requirements in the assembly and enabling the use of smaller, less costly optical components. It is fully compatible with SMD pick-and-place and reflow soldering equipment, allowing it to seamlessly integrate into high-volume, low-cost assembly lines. Each laser pixel can have up to four emitting stripes, enabling very high per-channel optical power levels in excess of 85W for long-range detection with minimal power consumption. These lasers can sustain large reverse voltage levels, with rise times of less than 5ns that can be achieved with proper drive electronics.

The standard 1X4 pulsed laser diode array can be customized to meet each customer’s optical system requirements. Variables such as the number of elements, element spacing, stripe width, channel power output and package footprint can be adjusted to enable minimized losses, longer range detection and reduced power consumption.

Visit Excelitas at www.excelitas.com