Alfalight Inc.’s 808C single-emitter laser diodes have a center wavelength at 808 ±3 nm and 3.5 W of output power. Operating current is 4.1 A, forward voltage is 1.7 V, threshold current is 0.7 A, and spectral width is 2 nm FWHM. Fiber core diameter is 105 µm, fiber length is 1.5 m, and numerical aperture is 0.15. Housed in a six-pin uncooled package, the laser diodes integrate proprietary wavelength stabilization technology that produces 0.07 nm/°C stability and eliminates the need for precise temperature control for solid-state laser pumping and other spectrum-sensitive applications. Power conversion efficiency is 51%, typical, and slope efficiency is minimum 1 and typical 1.05 W/A.