Gratings with an aperiodic basis: single-mode emission in multi-wavelength lasers
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Blanchard-2011-Gratings with an aperiodic basis.pdf
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Author(s)
Blanchard, R.
Menzel, S.
Pflugl, C.
Diehl, L.
Wang, Christine A.
Huang, Y.
Ryou, J.-H.
Dupuis, R. D.
Negro, L. Dal
Capasso, Federico
Date Issued
November 2011
Journal
New Journal of Physics
Publisher
Institute of Physics Publishing
Citation
Blanchard, R et al. “Gratings with an Aperiodic Basis: Single-mode Emission in Multi-wavelength Lasers.” New Journal of Physics 13.11 (2011): 113023. Web.
Version
Final published version
Abstract
We propose a new class of gratings having multiple spatial frequencies. Their design relies on the use of small aperiodic grating sequences as unit cells whose repetition forms a superlattice. The superlattice provides well-defined Fourier components, while the choice of the unit cell structure enables the selection, modulation or suppression of certain Fourier components. Using these gratings to provide distributed feedback in mid-infrared quantum cascade lasers, we demonstrate simultaneous lasing on multiple well-defined and isolated longitudinal modes, each one having a sidemode suppression ratio of about 20 dB.
MIT Department
Lincoln Laboratory
Terms of Use
Creative Commons Attribution 3.0
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1088/1367-2630/13/11/113023
