Re: "the researchers believe their technique is promising"
Since their model assumes the wave nature of light to work then it can be used for any other wavelength such as microwaves or radar or lidar or whatever similar sort of system vehicles are equipped with.
This is a proof of principle which means the deep learning system can be used with non laser wavelengths.
I’m a mere ‘stamp collector’ but as a scientist I can also see this from designing and analysis other experiments. Us Biologists use model systems from slime molds to mammals to gain insights into how our cells, tissues, organs and bodies function using the same proof of principle.
You have to be careful of it though. For eg just because you can get cells in tissue culture (immortalised cell lines are in effect cancer cells) to do something is not a priori evidence that normal cells in bodies do it. So whenever I see such papers I reserve judgement unless and until it is proven to happen in vivo (I’m an organismal biologist so to me in vivo means in an animal, biochemists and molecular biologists have different definitions).