Fundamental-Lateral Mode Stabilized High-Power Ridge-Waveguide Lasers With a Low Beam Divergence
H. Wenzel, F. Bugge, M. Dallmer, F. Dittmar, J. Fricke, K.H. Hasler, and G. Erbert
Published in:
IEEE Photonics Technol. Lett., vol. 20, no. 3, pp. 214-216 (2008).
Abstract:
We compare ridge-waveguide lasers with trench widths of 5 and 20 µm. The emission wavelength is around 1064 nm and the ridge width is 5 µm. The maximum output power exceeds 2W. The 5-µm trench-width device exhibits a much more stable lateral far-field. The full-width at half-maximum of the vertical far-field profile is only 15° due to a super-large optical cavity.
Ferdinand-Braun-Institut für Höchstfrequenztechnik, Gustav-Kirchhoff-Straße 4, D-12489 Berlin, Germany
Index Terms:
High-power lasers, ridge-waveguide (RW) lasers, semiconductor lasers.
© Copyright 2008 IEEE - All Rights Reserved. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Full version in pdf-format.