Microring Diode Laser for THz Generation

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We report on the modeling and optical characterization of AlGaAs/InAs quantum-dot microring diode lasers designed for terahertz (THz) difference frequency generation (DFG) between two whispering gallery modes (WGMs) around 1.3 $\mu$m. In order to investigate the spectral features of this active device in the two frequency ranges, we performed different measurements on ad hoc passive samples. For the study in the telecom range, we used transmission measurements on microcylinders with integrated coupling waveguides. For the analysis in the THz range, we used reflectivity spectra on 2D arrays of identical double-metal microcylinders. The good agreement that we demonstrate between experimental results and design parameters is crucial towards the achievement of active phase-matched THz emitters.
Original languageEnglish
JournalI E E E Transactions on Terahertz Science and Technology
Volume3
Issue number4
Pages (from-to)472-478
ISSN2156-342X
DOIs
Publication statusPublished - 2013
CitationsWeb of Science® Times Cited: No match on DOI

    Research areas

  • Whispering gallery modes, Nonlinear optics, Optical harmonic generation, Quantum dot lasers (QDLs)
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