Nanosecond-level precision laser pulse control for lidar and ToF systems
This article explores the technical requirements for laser drivers in lidar and time-of-flight systems used in autonomous vehicles and robotics. It details how pulse stability, rise time, and propagation delay are critical for accurate distance sensing.
Why it matters
Advancements in laser pulse control are essential for improving the safety and reliability of autonomous navigation technologies.
Lidar and time-offlight (ToF) systems depend on fast, stable and repeatable laser pulses, write Laephar Castro and Anant Sinha. The growing adoption of autonomous vehicles, industrial automation and advanced robotics [...]
Lidar and time-offlight (ToF) systems depend on fast, stable and repeatable laser pulses, write Laephar Castro and Anant Sinha.
The growing adoption of autonomous vehicles, industrial automation and advanced robotics is increasing demand for reliable 3D ranging and sensing. Lidar and time-offlight (ToF) systems rely on precisely controlled laser pulses to measure distance and spatial information. Meeting these requirements demands laser drivers that deliver high peak current and maintain pulse-to-pulse stability across temperature and ageing. Traditional discrete topologies that use gate drivers, external field effect transistors and current-sensing elements can meet specific design requirements; however, they often introduce trade-offs in terms of layout complexity, calibration effort and thermal performance.
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