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Tunable lasers on GaSb using the concept of binary superimposed gratings

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4 Author(s)
Muller, M. ; Technische Physik, Physikalisches Institut, Universität Würzburg, Am Hubland, D-97074 Würzburg, Germany ; Lehnhardt, T. ; RoBner, K. ; Forchel, A.

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We report the realization of widely tunable single-mode emitting laser diodes on the (AlGaIn)/(AsSb) material system employing binary superimposed gratings. Through this specialized concept of multifrequency selective gratings, it is possible to generate a tunable laser emitting at several predetermined wavelengths. One major advantage of this approach is the simple fabrication process, which is similar to standard distributed feedback fabrication technologies, but with the result of one single laser emitting single mode at several discrete emission wavelengths.

Published in:

Applied Physics Letters  (Volume:93 ,  Issue: 8 )