|Publication No: 2835||Search all ORC publications|
High power fiber lasers: New developments
Johan Nilssona,c, Jayanta K.Sahua,c, Yoonchan Jeonga, W.Andy Clarksona, Romeo Selvasa, Anatoly B.Grudininc, and Shaif-Ul Alamc
a. Optoelectronics Research Centre, University of Southampton, UK
c. Southampton Photonics, Inc., 3 Wellington Park, Hedge End, Southampton SO30 2QU, UK
We assess different power limits of cladding-pumped fiber lasers. Despite recent advances in pump sources, these are still primarily limited by available pump power. We find that it should be possible to reach output powers beyond 1 kW in single-mode ytterbium doped fiber lasers. Experimentally, we have realized an ytterbium-doped fiber laser with 272 W of output power at 1080 nm, with an M2-value of 3.2, as well as an erbium-ytterbium co-doped fiber laser with 103 W of output power at 1565 nm, with an M2-value of 2.0. We believe these are the highest-power ytterbium and erbium-ytterbium fiber lasers ever reported.
Copyright University of Southampton 2006