We demonstrate 104 Watts of in-band output power from a cascaded Raman fiber laser operating around 1.7 μm with a spectral purity of over 90% operating in both continuous wave and pulsed regimes. Through the use of a filter fiber with its cutoff wavelength designed between the 6th and 7th Stokes orders, output above 1.8 μm is suppressed below threshold values. In the pulsed regime the laser produces output pulses ranging from 11.5 mJ pulses with 100 μs pulse width to 10 J pulses with 100 ms pulse width.

Date Published: 21 February 2020
PDF: 6 pages
Proc. SPIE 11260, Fiber Lasers XVII: Technology and Systems, 112601S (21 February 2020); doi: 10.1117/12.2545034

Published in SPIE Proceedings Vol. 11260:
Fiber Lasers XVII: Technology and Systems
Liang Dong, Editor(s)