The FP4516 Laser Controller is a stand-alone solution for open-loop drive of a multi- section tunable laser. It has integrated sources providing five channels of independently programmable output current. It provides separate TEC control for laser and package and read-back of all laser section voltages, TEC currents, laser temperature and case temperature. A Simple GUI for control over RS232 interface is included. Compatible with FP3013x and FP3015x tunable lasers.