GaInAs would imply 1500nm or some non-standard wavelength, at this point I would suspect that normal silicon would do, but you just have to get down to a low enough price point.
That's what Advanced Scientific Concepts uses in their high-end LIDAR units. That gets them the sensitivity needed for flash LIDAR with hundreds of meter range.
There are people talking about doing the same job with CMOS technology, and that may well happen, but I don't think the CMOS people have comparable sensitivity yet. Fraunhofer is working on it.[1]
[1] http://www.ait.ac.at/fileadmin/mc/digital_safety_security/do...