Abstract
Semiconductor disk lasers (also called VECSELs, vertical external cavity surface emitting lasers) combine the benefits of diode-pumped solid-state lasers (DPSSLs) and semiconductor technologies, resulting in wavelength flexibility and high power operation with excellent beam quality. Modelocking VECSELs with a semiconductor saturable absorber mirror (SESAM) [1] resulted in excellent performance (2.1 W in 4.7-ps pulses [2], 60 fs pulses [3], and 50 GHz with 102 mW [4]). With the MIXSEL (modelocked integrated external-cavity surface emitting laser), for which gain and absorber are combined in one wafer, even higher output power could be demonstrated: 6.4 W at 2.5 GHz in 28-ps pulses [5].
© 2011 Optical Society of America
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