Passively mode-locked electrically pumped VECSELs

C. A. Zaugg; W. P. Pallmann; M. Mangold; V. J. Wittwer; H. Moench; S. Gronenborn; M. Miller; B. W. Tilma; T. Südmeyer; U. Keller

doi:10.1117/12.2002391

18 February 2013 Passively modelocked electrically pumped VECSELs

C. A. Zaugg, W. P. Pallmann, M. Mangold, V. J. Wittwer, H. Moench, S. Gronenborn, M. Miller, B. W. Tilma, T. Südmeyer, U. Keller

Author Affiliations +

Proceedings Volume 8606, Vertical External Cavity Surface Emitting Lasers (VECSELs) III; 86060G (2013) https://doi.org/10.1117/12.2002391
Event: SPIE LASE, 2013, San Francisco, California, United States

Abstract

In modelocked electrically pumped VECSELs (EP-VECSELs) the gain saturation strongly influences the pulse formation. Here we present a detailed gain characterization of EP-VECSELs as published the first time in [1]. The spectral gain-distribution and the gain saturation behavior of two devices with different field-enhancement in the quantum-well gain layers are investigated. Comparing spectral bandwidth, small-signal gain and saturation fluence of the three devices, we chose the most suitable for modelocking experiments. Using a low-saturation fluence SESAM we have generated 9.5-ps-pulses with an average output-power of 7.6 mW at 1.4 GHz repetition-rate, which have been the shortest pulses from an EP-VECSEL to date [1].

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C. A. Zaugg, W. P. Pallmann, M. Mangold, V. J. Wittwer, H. Moench, S. Gronenborn, M. Miller, B. W. Tilma, T. Südmeyer, and U. Keller "Passively modelocked electrically pumped VECSELs", Proc. SPIE 8606, Vertical External Cavity Surface Emitting Lasers (VECSELs) III, 86060G (18 February 2013); https://doi.org/10.1117/12.2002391

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