Title :
Milliwatt second harmonic generation in quantum cascade lasers with modal phase matching
Author :
Malis, O. ; Belyanin, A. ; Sivco, D.L. ; Chen, J. ; Sergent, A.M. ; Gmachl, C. ; Cho, A.Y.
Author_Institution :
Lucent Technol. Bell Labs., Murray Hill, NJ, USA
Abstract :
Milliwatt second harmonic power at 4.45 μm was achieved in InP lattice-matched quantum cascade lasers with monolithically-integrated resonant nonlinear cascades and modal phase matching. The use of an InP top-cladding layer and high-reflectance coating on the laser back facet enabled high linear laser power and consequently record nonlinear power.
Keywords :
III-V semiconductors; aluminium compounds; claddings; gallium arsenide; indium compounds; integrated optics; optical harmonic generation; optical phase matching; quantum cascade lasers; waveguide lasers; 4.45 micron; InGaAs-InAlAs; InP; high reflectance coating; lattice matched lasers; linear laser power; milliwatt second harmonic generation; modal phase matching; monolithically integrated resonant nonlinear cascades; quantum cascade lasers; top cladding layer;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20047040
