SCIENTIFIC PUBLICATION: All-PM coherent 2.05 µm thulium/holmium fiber frequency comb source at 100 MHz with up to 0.5 W average power and pulse duration down to 135 fs

All-PM coherent 2.05 µm thulium/holmium fiber frequency comb source at 100 MHz with up to 0.5 W average power and pulse duration down to 135 fs

H. Hoogland, A. Thai, D. Sánchez, S. L. Cousin, M. Hemmer, M. Engelbrecht, J. Biegert, & R. Holzwarth

We report on a dual output all-PM fiber laser system running at 100 MHz repetition rate offering coherent broadband and narrowband pulses centered at 2.05 µm with a spectral FWHM bandwidth of 60 nm and 1.5 nm at up to 360 mW and 500 mW, respectively. The broadband pulses are compressed down to 135 fs. The multi-stage double-clad amplifier based on Tm/Ho codoping is seeded by a supercontinuum light source, spanning from around 1 µm up to 2.4 µm.

Optics Express Vol. 21, p. 31390 (2013)

doi: https://doi.org/10.1364/OE.21.031390