The room-temperature intracavity difference-frequency generation in mid-infrared spectral range have been observed in a butt-joint GaAs/InGaAs/InGaP quantum-well laser diode which supports lasing at two closely spaced wavelengths in the near-infrared range. A special asymmetric waveguide design and a low-doped substrate that minimize mid infrared losses and realize phase matching condition for the difference-frequency generation process were used in butt-joint lasers.
Published in:
Advanced Optoelectronics and Lasers, 2008. CAOL 2008. 4th International Conference on
Date of Conference: Sept. 29 2008-Oct. 4 2008