New IR laser, need some help

Hello everybody, I need to build an host for this:
CW Laser diode (CWLD) L9418-42 | Hamamatsu Photonics

but I never built any laser and I need to know what to do, as I understood I need a driver, but then? and which one?
Preferably it will be powered with a power supply and not a battery, because I need hours of continuous usage for study purpose.

I accept every hint and suggestions :)