Alfalight Inc.’s Combined Power Module II (CPM-II) adds precision wavelength control via integrated temperature stabilization to the high brightness of the predecessor CPM. Available with 25 W of output power and a 0.22-NA output fiber, it is suitable for pumping fiber lasers at 976 nm. The 4.5 × 7 × 1-in. module uses TE-cooled fiber-coupled laser diodes and requires only a laser current supply and a fixed-voltage supply to drive the temperature control. Hermetic diode packaging, advanced electrical protection circuitry and a rugged housing contribute to effective operation in laboratory and field environments. A 21-W version in a 6+1:1 pump/signal configuration also is available for fiber amplifier and lidar systems.