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Which Wavelength is Better for Automotive LiDAR: 900, 1310 or 1550?

LiDAR, which stands for “Light Detection and Ranging,” is a method for determining the distances of objects (and, possibly, additional information associated with those objects) by targeting them with a laser and measuring the time for the reflected light to return to the receiver. In the case of LiDAR sensors used for automotive applications, the majority fall into two main wavelength bands. One group is found around 900 nanometers (nm), while another group is found at 1550 nm. So, why did we at Insight LiDAR decide to create our state-of-the-art LiDAR systems using a wavelength of 1310 nm? In order to answer this question, let’s first consider what drove the creators of traditional automotive LiDAR systems to opt for 900 or 1550 nm lasers.


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