, Volume 93, Issue 4, pp 733-736,
Open Access This content is freely available online to anyone, anywhere at any time.
Date: 25 Oct 2008

Modelocked quantum dot vertical external cavity surface emitting laser

Abstract

We report the first successful modelocking of a vertical external cavity surface emitting laser (VECSEL) with a quantum dot (QD) gain region. The VECSEL has a total of 35 QD-layers with an emission wavelength of about 1060 nm. In SESAM modelocked operation, we obtain an average output power of 27.4 mW with 18-ps pulses at a repetition rate of 2.57 GHz. This QD-VECSEL is used as-grown on a 450 μm thick substrate, which limits the average output power.