Scaling high-power ultrafast VECSELs into the femtosecond regime

O. D. Sieber; M. Hoffmann; V. J. Wittwer; W. P. Pallmann; M. Golling; Y. Barbarin; T. Südmeyer; U. Keller

doi:10.1117/12.873524

21 February 2011 Scaling high-power ultrafast VECSELs into the femtosecond regime

O. D. Sieber, M. Hoffmann, V. J. Wittwer, W. P. Pallmann, M. Golling, Y. Barbarin, T. Südmeyer, U. Keller

Author Affiliations +

Proceedings Volume 7919, Vertical External Cavity Surface Emitting Lasers (VECSELs); 79190P (2011) https://doi.org/10.1117/12.873524
Event: SPIE LASE, 2011, San Francisco, California, United States

Abstract

The combination of high output power and femtosecond pulses from VECSELs and MIXSELs would be very attractive for many applications. To explore the limitations, a quantitative understanding of the pulse formation processes is required. Our numerical simulations showed a good qualitative agreement with experimental results in the picosecond regime. By minimizing intracavity group delay dispersion (GDD) and improving gain bandwidth and SESAM parameters, our model predicts pulses as short as 250 fs. As a first step we minimized GDD with a top coating which provides values between ±10 fs² over a range of 30 nm around the design wavelength.

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O. D. Sieber, M. Hoffmann, V. J. Wittwer, W. P. Pallmann, M. Golling, Y. Barbarin, T. Südmeyer, and U. Keller "Scaling high-power ultrafast VECSELs into the femtosecond regime", Proc. SPIE 7919, Vertical External Cavity Surface Emitting Lasers (VECSELs), 79190P (21 February 2011); https://doi.org/10.1117/12.873524

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