lidar

Thin-film interference filters for lidar

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In order to keep up with the technology, LIDAR interference filters must be designed to maximize signal-to-noise ratios by reliably isolating the target LIDAR return signal. High performance LIDAR interference filters have greatly improved signal-to-noise ratios and reduced the need for multiple filtering techniques.

Investment is making lidar more accessible and cost-effective for the autonomous driving sector

The driving force behind autonomous vehicles

Keely Portway delves into some of the latest lidar developments for self-driving vehicles, and how these are proving beneficial in other applications

Analysing lidar return signal strengths for target optical surfaces and atmospheric conditions

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Lidar systems are complex, dynamic devices involving both optical, mechanical, and electronic components that must work together while interacting reliably with a widely varying external environment. It is the optical part of the system that interacts with the environment, and so it is through optical modeling that we can gain a crucial insight into expected performance under varying conditions.

In this paper, we will take a brief look at how illumination ray tracing software can be used by engineers to gain these insights into expected lidar system performance before building expensive prototype systems.

An illustration of lidar waves. Credit: Johann Riemensberger

PIC method set to speed-up coherent lidar

In a study published in Nature, researchers at the École polytechnique fédérale de Lausanne (EPFL) demonstrate a new way to speed up a type of lidar engine by using photonic circuits

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