Spectrum-agile hundred-watt-level high-power random fiber laser enabled by watt-level tunable optical filter

摘要

Through high-fidelity numerical modeling and careful system-parameter design, we demonstrate the spectral manipulation of a hundred-watt-level high-power random fiber laser (RFL) by employing a watt-level tunable optical filter. Consequently, a 100-W RFL with the spectrum-agile property is achieved. The central wavelength can be continuously tuned with a range of similar to 20nm, and the tuning range of the full width at half maximum linewidth, which is closely related to the central wavelength, covers similar to 1.1 to similar to 2.7 times of the minimum linewidth. (C) 2018 The Japan Society of Applied Physics