High power 739 nm VECSELs for future Yb

Autor: Jonathan R C, Woods, Hermann, Kahle, Alan C, Gray, Jake, Daykin, Anne C, Tropper, Corin, Gawith, Mircea, Guina, Vasilis, Apostolopoulos
Rok vydání: 2021
Zdroj: Applied optics. 60(3)
ISSN: 1539-4522
Popis: We present an operational characterization of a vertical-external-cavity surface-emitting laser emitting around 739 nm with over 150 mW in a single fundamental spatial mode. Results show that the laser is capable of oscillating on a single cavity axial mode at 740 nm for up to 22 mW. Tuning of the optical emission is shown to reach 737.3 nm. Furthermore, at best performance, the laser exhibits a slope efficiency of 8.3% and a threshold power of 1.27 W for an output coupler reflectivity of 98%.
Databáze: OpenAIRE