Visible cw single quantum well (AlGa)As diode lasers

Abstract
In this letter we report on visible cw single quantum well (AlGa)As diode lasers grown by metalorganic chemical vapor deposition. The operating wavelength is 7210 Å. A linear output power up to 10 mW for a threshold current of 75 mA is achieved. The laser consists of a single quantum well double heterostructure with a 9-μm-wide proton implanted stripe. Double peaked far-field patterns, modulation bandwidths to 2.7 GHz, and a flat noise spectra with a reduced shot noise peak at 2 GHz are obtained.