Superlum Driver Pilot4-PCB (Board Level Current and Temperature Control), used. The board was removed from working equipment.
This module was used in OTI/Opko/Optos Spectral OCT as light source

The Pliot4-PCB driver offers precise low-noise, high stability current and temperature control for SLD modules with built-in peltier cooler. The Pilot4-PCB provides flexibility of a mountable circuit board and is valid, efficient solution for customized OEM applications.

Open link below for 
Manual that contains Operation, Specifications and Installation guidelines of Pilot4-PCB driver:
https://app.box.com/s/hdvs63nt8et4864iyokontbytv9mrdwg