Highly strained InGaAs quantum wells were grown by metalorganic vapor-phase
epitaxy. By lowering the growth temperature to 530 degreesC, a maximum pho
toluminescence wavelength of 1192 nm was achieved. High-power diode lasers
with a maximum lasing wavelength of 1175 nm were fabricated. A continuous-w
ave output power of 12 W at a heat-sink temperature of 25 degreesC was obta
ined at a lasing wavelength of 1120 nm. (C) 2001 American Institute of Phys
ics.