SESAM designs for ultrafast lasers

Clara J. Saraceno; Cinia Schriber; Mario Mangold; Martin Hoffmann; Oliver H. Heckl; Cyrill R. E. Baer; Matthias Golling; Thomas Südmeyer; Ursula Keller

doi:10.1117/12.2008499

26 February 2013 SESAM designs for ultrafast lasers

Clara J. Saraceno, Cinia Schriber, Mario Mangold, Martin Hoffmann, Oliver H. Heckl, Cyrill R. E. Baer, Matthias Golling, Thomas Südmeyer, Ursula Keller

Author Affiliations +

Proceedings Volume 8601, Fiber Lasers X: Technology, Systems, and Applications; 86010Q (2013) https://doi.org/10.1117/12.2008499
Event: SPIE LASE, 2013, San Francisco, California, United States

Abstract

The invention of the semiconductor saturable absorber mirror (SESAM) nearly 20 years ago was a major advancement for the development of ultrafast laser systems. Today, SESAMs have become key devices for modelocking of numerous laser types, including DPSSLs, fiber lasers, and semiconductor lasers. Semiconductors are ideally suited as saturable absorbers because they can cover a broad wavelength range and yield short recovery times, supporting the generation of picosecond to femtosecond pulse durations. The macroscopic nonlinear optical parameters for modelocking can be optimized over a wide range by the design of the mirror structure and the choice of the semiconductor absorber. Furthermore, their damage threshold can be controlled making them ideally suited for high-power levels. In this presentation, we will focus on recent advances in SESAMs for cutting-edge ultrafast lasers. In particular, we will focus on recent damage and lifetime investigations of SESAMs designed for high-power oscillators. We will present guidelines for robust SESAMs in a large range of saturation parameters, and give an outlook towards novel SESAM designs that will enable future kW-level ultrafast oscillators.

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Clara J. Saraceno, Cinia Schriber, Mario Mangold, Martin Hoffmann, Oliver H. Heckl, Cyrill R. E. Baer, Matthias Golling, Thomas Südmeyer, and Ursula Keller "SESAM designs for ultrafast lasers", Proc. SPIE 8601, Fiber Lasers X: Technology, Systems, and Applications, 86010Q (26 February 2013); https://doi.org/10.1117/12.2008499

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