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1.3-μm continuously tunable distributed feedback laser with constant power output based on GaInNAs-GaAs

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5 Author(s)
M. Muller ; Nanoplus Nanosystems & Technol. GmbH, Gerbrunn, Germany ; D. Gollub ; M. Fischer ; M. Kamp
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We have investigated tunable distributed-feedback (DFB) lasers based on GaInNAs quantum wells grown by molecular-beam epitaxy. Three-section tunable DFB lasers were fabricated by patterning laterally gain coupled binary superimposed gratings perpendicular to a ridge waveguide. The discrete tuning range covers 24 nm with sidemode suppression ratios of about 35 dB. The lasers were tuned continuously over a range of over 10 nm with a constant power output of 15 mW per facet.

Published in:

IEEE Photonics Technology Letters  (Volume:15 ,  Issue: 7 )