4 March 2015 21.2% wall-plug efficiency green laser based on an electrically pumped VECSEL through intracavity second harmonic generation
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Abstract
We have achieved a 21.2% wall-plug efficiency green laser at 532 nm based on an electrically pumped vertical externalcavity surface emitting laser (VECSEL) through intracavity second harmonic generation. The continuous-wave green output power was 3.34 W. The VECSEL gain device is cooled by using a thermoelectric cooler, which can greatly benefit packaging. Both power and efficiency can be further scaled up by optimizing external-cavity design and improving the performance of VECSEL gain device.
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Pu Zhao, Bing Xu, Robert Van Leeuwen, Tong Chen, Laurence Watkins, Delai Zhou, Jean-Francois Seurin, Peng Gao, Guoyang Xu, Qing Wang, and Chuni Ghosh "21.2% wall-plug efficiency green laser based on an electrically pumped VECSEL through intracavity second harmonic generation", Proc. SPIE 9349, Vertical External Cavity Surface Emitting Lasers (VECSELs) V, 93490M (4 March 2015); doi: 10.1117/12.2079819; https://doi.org/10.1117/12.2079819
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