Supersymmetric optimization of second-harmonic generation in mid-infrared quantum cascade lasers

Jing Bai, David S. Citrin

Research output: Contribution to journalArticlepeer-review

30 Scopus citations

Abstract

We describe a procedure to optimize mid-infrared quantum cascade lasers with respect to the resonant second-order optical susceptibility, based on supersymmetric quantum mechanics. Realization of the optimized potential can be obtained by composition grading of ternary alloys, such as in InGaAs/AlInAs-based structures. The approach yields designs not only with strongly enhanced predicted nonlinear conversion efficiencies, but also with significantly improved modal gain compared with demonstrated devices.

Original languageEnglish (US)
Pages (from-to)4043-4048
Number of pages6
JournalOptics Express
Volume14
Issue number9
DOIs
StatePublished - 2006

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