Generation of light through second-order nonlinear processes in Quantum Cascade lasers Conference Paper uri icon


  • We demonstrate efficient intracavity nonlinear interaction of laser modes in quantum cascade (QC) lasers with resonant nonlinear optical intersubband transitions. Sum-frequency and second-harmonic generation at 4.1 and 3.6 and 4.7 m wavelength has been demonstrated for a two-wavelength QC laser emitting at the fundamental wavelengths 7.1 and 9.5 m. In a structure optimized for second harmonic generation, we measure 1.5 W of nonlinear power at 3.7 m wavelength together with 930 mW of fundamental power at 7.5 m wavelength. The experimental results are in very good agreement with the calculations. 2001 Optical Society of America.

published proceedings

  • OSA Trends in Optics and Photonics Series

author list (cited authors)

  • Gmachl, C., Belyanin, A., Owschimikow, N., Kocharovsky, V., Capasso, F., Sivco, D. L., ... Cho, A. Y.

complete list of authors

  • Gmachl, C||Belyanin, A||Owschimikow, N||Kocharovsky, V||Capasso, F||Sivco, DL||Peadbody, ML||Sergent, AM||Cho, AY

publication date

  • January 2003