High-power 1908-nm fiber-coupled laser modules are available from Laser Operations LLC, manufacturer of the QPC Laser line. With continuous-wave power up to 40 W and on-chip Brightlock wavelength stabilization technology, the modules are suitable for industrial, medical and defense applications. Their good spectral characteristics and high wall-plug efficiency target a specific laser crystal and water peak absorption to enable multiple applications, from resonant pumping of Ho:YAG lasers and mid-IR generation to laser therapeutics. Based on InP material, the chips reach 25% peak efficiency at room temperature with a <2-nm linewidth and low-wavelength sensitivity to a temperature of 0.2 nm/ºC. The modules can be integrated into the company’s SUltra system. Options include an integrated aiming beam, fiber sensors and a range of photodiodes. Microchannel cooled stack configurations are available for pumping applications.