Optically pumped semiconductor disk laser with graded and step indices for cw and ultrashort pulse generation
F. Saas1, V. Talalaev1, J.W. Tomm1, G. Steinmeyer1, U. Griebner1, M. Zorn2 , M. Weyers2
Published in:
European Conf. on Lasers and Electro-Optics and Int. Quantum Electronics Conf. (CLEO Europe - IQEC 2007), Munich, Germany, Jun. 17-22, paper CB13-3 (2007).
Abstract:
Summary form only given. This paper reports continuous-wave (cw) and passive mode-locked laser operation of diode-pumped semiconductor disk lasers based on gain sections with step and graded index designs, each containing 6 InGaAs quantum wells. Mode-locked laser operation is achieved applying both structures, using a V-shaped cavity including a fast saturable semiconductor absorber mirror. Results show that the graded index structure exhibits clear advantages over the step index structure in cw-laser operation with respect to the saturation of the absorption. However, for mode-locked operation, shorter pulses are generated using the step index structure.
1 Max-Born-Institute, Max-Born-Str. 2a, D-12489 Berlin, Germany
2 Ferdinand-Braun-Institut für Höchstfrequenztechnik, Gustav-Kirchhoff-Straße 4, 12489 Berlin, Germany
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