Download | - View accepted manuscript: Mode-locked pulses from mid-infrared Quantum Cascade Lasers (PDF, 1.7 MiB)
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DOI | Resolve DOI: https://doi.org/10.1364/OE.17.012929 |
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Author | Search for: Wang, Christine Y.; Search for: Kyznetsova, Lyuba; Search for: Gkortsas, V.M.; Search for: Diehl, L.; Search for: Kartner, F.X.; Search for: Belkin, M.A.; Search for: Belyanin, A.; Search for: Li, X.; Search for: Ham, D.; Search for: Schneider, H.; Search for: Grant, P.1; Search for: Song, C.Y.1; Search for: Haffouz, S.1; Search for: Wasilewski, Z.R.1; Search for: Liu, H.C.1; Search for: Capasso, Federico |
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Affiliation | - National Research Council of Canada. NRC Institute for Microstructural Sciences
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Format | Text, Article |
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Abstract | In this study, we report the unequivocal demonstration of midinfrared mode-locked pulses from quantum cascade lasers. The train of short pulses was generated by actively modulating the current and hence the gain of an edge-emitting quantum cascade laser (QCL). Pulses with duration of about 3 ps at full-width-at-half-maxima and energy of 0.5 pJ were characterized using a second-order interferometric autocorrelation technique based on a nonlinear quantum well infrared photodetector. The modelocking dynamics in the QCLs was modeled based on the Maxwell-Bloch equations in an open two-level system. Our model reproduces the overall shape of the measured autocorrelation traces and predicts that the short pulses are accompanied by substantial wings as a result of strong spatial hole burning. The range of parameters where short mode-locked pulses can be formed is found. |
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Publication date | 2009-07-13 |
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In | |
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Language | English |
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Peer reviewed | No |
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NPARC number | 18067924 |
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Export citation | Export as RIS |
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Record identifier | 4e7f1187-f8be-43a9-a793-3d9a1bfd865c |
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Record created | 2011-06-14 |
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Record modified | 2020-04-16 |
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