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High-Efficiency 2.09 μm Single-Oscillator Monolithic Thulium-Doped Fiber Laser | IEEE Journals & Magazine | IEEE Xplore

High-Efficiency 2.09 μm Single-Oscillator Monolithic Thulium-Doped Fiber Laser


Abstract:

A single-oscillator monolithic thulium-doped fiber laser in which the 793 nm core absorption of 8.42 dB/m allows emitting 193 W (46 % of slope efficiency) at $2.09~\mu \...Show More

Abstract:

A single-oscillator monolithic thulium-doped fiber laser in which the 793 nm core absorption of 8.42 dB/m allows emitting 193 W (46 % of slope efficiency) at 2.09~\mu \text{m} is presented. An 8°-cleaved angle of the fiber facet suppresses the parasitic cavity that formerly limited the power scaling. The characteristics of the thulium laser operating at the uncommon 2.09- \mu \text{m} long wavelength is compared to the power performances of a similar thulium-holmium codoped fiber laser.
Published in: IEEE Photonics Technology Letters ( Volume: 35, Issue: 10, 15 May 2023)
Page(s): 553 - 556
Date of Publication: 04 April 2023

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