Milliwatt second harmonic generation in quantum cascade lasers with modal phase matching |
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| Authors: | Malis O Belyanin A Sivco DL Chen J Sergent AM Gmachl C Cho AY |
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| Institution: | Lucent Technol. Bell Labs., Murray Hill, NJ, USA; |
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| Abstract: | Milliwatt second harmonic power at 4.45 /spl mu/m 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. |
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