
Lidar over 1400 nm is definitely capable of cornea damage. The question is what about 900~1000 nm. That is more common on avs. They claim they are safe… I don't know.
TL;DR: Don't focus on wavelength, modern LIDARs are often in unsafe wavelengths. Look at the other parts of the safety story.
Three basic LIDAR safety stories:
Short-range / low-throughput fixed sensors (generic industrial parts): These are usually spec'd to an intensity that doesn't cause damage.
Long-range spinning sensors ("Chicken bucket" LIDARs, e.g. Velodyne): Rely on a spinning mirror to control dwell time; use centrifugal force as the optical path interlock. So the beam doesn't have to be eye-safe because it's only pointed at you for 0.1% of the time. But the point cloud isn't instantaneous -- each point is from a different time -- which can be pathological in high-speed driving.
Long-range software-controlled lidars (e.g. every single VC-funded product since the Luminar G): usually eye-unsafe wavelengths and intensities but rely on software safeties to avoid having the laser dwell in any particular solid angle for long enough to cause damage. These are awesome for the software people because they don't have the "rolling shutter" effect of spinners, but some have had poor safety practices in the past.
AFAIK (not a waymo expert) Waymo uses all three -- they have short-range sensors for low-speed obstacle work like parking, four small spinners on the roof, and an undisclosed "instantaneous" sensor that's presumably the third sort.
I think you'd want to look at the third sort and the quality of control software, and look at whether the vendor's FCC certs are up-to-date and not obviously photocopies and so forth. That information must be somewhere...