High-Power 980-nm DFB RW Lasers With a Narrow Vertical Far Field

H. Wenzel, J. Fricke, A. Klehr, A. Knauer, G. Erbert

Ferdinand-Braun-Institut für Höchstfrequenztechnik, Gustav-Kirchhoff-Straße 4, D-12489 Berlin, Germany

Published in:
IEEE Photonics Technology Lett., Vol. 18, No. 6, 737-739 (2006).
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Abstract:
We compare 980-nm distributed-feedback ridgewaveguide lasers having cavity lengths of 1.5 and 3 mm. The maximum single-mode output powers are 500 and 700 mW, respectively. The full-width at half-maximum of the vertical far-field profile is only 22° due to a superlarge optical cavity.

Index Terms: Distributed feedback (DFB) lasers, ridge waveguides (RWs), semiconductor lasers.

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