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Wide range tunable laterally coupled distributed-feedback lasers based on InGaAs-GaAs quantum dots

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5 Author(s)
Muller, M. ; Nanoplus Nanosystems & Technol. GmbH, Gerbrunn, Germany ; Klopf, F. ; Kamp, M. ; Reithmaier, J.P.
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The authors have investigated tunable distributed feedback (DFB) lasers based on InGaAs quantum dots grown by molecular beam epitaxy. Two-section tunable DFB lasers were fabricated by patterning laterally gain coupling binary superimposed gratings perpendicular to the ridge waveguide. Side-mode suppression ratios of up to 40 dB have been achieved. The tuning range covers 30 nm.

Published in:

Photonics Technology Letters, IEEE  (Volume:14 ,  Issue: 9 )