Watt-level 2150 nm fiber laser

Rafael R. Gattass; Augustus X. Carlson; Colin C. Baker; Daniel L. Rhonehouse; E. Joseph Friebele; L. Brandon Shaw; Jasbinder S. Sanghera

doi:10.1117/12.2633143

30 May 2022 Watt-level 2150 nm fiber laser

Rafael R. Gattass, Augustus X. Carlson, Colin C. Baker, Daniel L. Rhonehouse, E. Joseph Friebele, L. Brandon Shaw, Jasbinder S. Sanghera

Author Affiliations +

Proceedings Volume 12092, Laser Technology for Defense and Security XVII; 1209209 (2022) https://doi.org/10.1117/12.2633143
Event: SPIE Defense + Commercial Sensing, 2022, Orlando, Florida, United States

Abstract

We report on two architectures for obtaining watt-level single mode output from a fiber laser at 2150 nm, one based on a diode-pumped Thulium fiber laser, and another based on a Thulium fiber laser pumped Holmium fiber laser. We observe temporal instability in the diode-pumped Tm-doped fiber system when operating at 2150 nm, with unstable pulsing, and a maximum power of 0.935 W. The Ho-doped fiber system pumped by Tm laser operating at the same 2150 nm wavelength shows periodic pulsing at a fixed rate of 21.25 MHz. Pulsing was observed as soon as the laser threshold was reached. Both laser systems operated in a single spatial mode.

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Citation Download Citation

Rafael R. Gattass, Augustus X. Carlson, Colin C. Baker, Daniel L. Rhonehouse, E. Joseph Friebele, L. Brandon Shaw, and Jasbinder S. Sanghera "Watt-level 2150 nm fiber laser", Proc. SPIE 12092, Laser Technology for Defense and Security XVII, 1209209 (30 May 2022); https://doi.org/10.1117/12.2633143

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