Efficient yellow Dy:ZBLAN fiber laser with highbrightness diode-pumping at 450 nm
Résumé
We report on a low-threshold efficient yellow Dy fiber laser with good beam quality featuring high-brightness pumping. It employs a single-clad 0.2 mol% Dy:ZBLAN fiber pumped by two 450-nm blue GaN laser diodes. The continuous-wave Dy-fiber laser delivers a maximum output power of 109 mW at 575 nm with a laser threshold of 218 mW, a slope efficiency of 19.6%, and beam quality factors M 2 x,y ~1.5. The overall optical efficiency versus incident pump power is 13.9%, being record-high for this type of lasers. The laser performance is simulated based on the spectroscopic data, being in good agreement with the experiment.
Domaines
Physique [physics]| Origine | Fichiers produits par l'(les) auteur(s) |
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