Characteristics of the emission of 805 — 810 nm radiation by linear injection-laser arrays used to pump solid-state lasers

Integrated linear injection-laser arrays were made from AlGaAs\/GaAs heterostructures grown by MOCVD epitaxy. The total width of the emitting surface was 1 cm and the arrays were intended for the pumping of solid-state lasers. The watt–ampere characteristics, the overall efficiency, the emission spectra, and the shape of the light pulses emitted by the arrays were investigated in the 0.1 — 1 ms range of the pump pulse durations, best for the optical pumping of solid-state lasers. The maximum pulse power of 70 W, obtained for a current of 80 A, was limited by the source used to pump the injection lasers.