Yes, the LW20 directly drives the PWM signal used to position a servo.
In the LW20 there is a complete servo control system that lets you define the parameters of the servo that you want to use - things like the maximum and minimum PWM durations and the scale of the servo (number of us per degree of movement).
You can instruct the LW20 to aim the servo in a particular direction or you can select the automatic scanning mode that sweeps the servo backwards and forwards whilst automatically synchronizing the laser measurements. The data from the scan is available either as live streaming (angle, first return and last return) or else you can use the internal alarm features to warn when something gets too close. The alarms require much less processing by the host controller.
I'll post a lot more info about the LW20's capabilities over the next few weeks as our new GUI application and detailed manuals go online.