Semiconductor disk lasers (SDLs), also known as Vertical External Cavity Surface Emitting Lasers (VECSEL) feature simultaneously high output power and excellent beam quality. Exploiting semiconductor band-gap-engineering, GaSb-based devices emitting in the wavelength range between 1.9 µm and 2.8 µm and with cw output powers up to 5 W have been demonstrated [1–3].

© 2015 IEEE

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