In this work, we explore the nonlinear pulse dynamics in a SESAM-free, mode-locked electrically-pumped (EP) VECSEL. The laser setup is illustrated in Fig. 1 (left) and includes an EP-VECSEL chip, a curved output-coupler with a radius of curvature of 75 mm and 10 % out-coupling, and an adjustable intracavity slit directly in front of the output-coupler. The output-coupler is placed on a translation stage to allow for variation of the cavity length and a polarizing isolator is used for suppression of back-reflections.

© 2019 IEEE

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