GaAs/AlGaAs multiple quantum well ridge waveguide laser diodes have been fabricated using MOVPE and a dry etch process for the ridge structure. The threshold currents of the lasers are 10-15 mA at 25-degrees-C and the characteristic temperature T(o) exceeds 200 K. Modulation bandwidths of up to 14 GHz and relaxation oscillation frequencies of up to 36 GHz are achieved with these devices. The modulation bandwidth exceeds 10 GHz in a temperature range up to 80-degrees-C.