Translator Disclaimer
9 March 2016 85 µm core rod fiber amplifier delivering 350 W/m
Author Affiliations +
An improved version of the distributed modal filtering (DMF) rod fiber is tested in a high power setup delivering 350 W/m of extracted signal average power limited by the available pump power. The rod fiber is thoroughly tested to record the transverse modal instability (TMI) behavior and also measure degradation of the TMI threshold with operation time due to induced absorption in the active material increasing the thermo-optical heat load. Multiple testing degrades the rod fiber and TMI threshold from >360 W to a saturated power level of roughly 240 W.
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Mette M. Johansen, Mattia Michieletto, Torben Kristensen, Thomas T. Alkeskjold, and Jesper Lægsgaard "85 µm core rod fiber amplifier delivering 350 W/m", Proc. SPIE 9728, Fiber Lasers XIII: Technology, Systems, and Applications, 97280I (9 March 2016);

Back to Top