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9 March 2020 Effect of the background absorption in achieving a radiation-balanced ZBLAN fiber laser (Conference Presentation)
Mostafa Peysokhan, Esmaeil Mobini, Arash Mafi
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Proceedings Volume 11298, Photonic Heat Engines: Science and Applications II; 112980I (2020) https://doi.org/10.1117/12.2546600
Event: SPIE OPTO, 2020, San Francisco, California, United States
Abstract
The modal instability due to heating has been a limiting factor in the ongoing progress towards power scaling in fiber lasers and amplifiers. Radiation balancing has been suggested as a feasible approach for heat mitigation, for which Yb-doped ZBLAN is a recommended gain medium. In this study, we introduce a non-destructive and non-contact method to characterize Yb-doped ZBLAN fibers and show that it is suitable for designing a radiation-balanced fiber laser. Numerical simulations based on measured values indicate that background absorption is the main hindrance to be overcome in such designs.
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Mostafa Peysokhan, Esmaeil Mobini, and Arash Mafi "Effect of the background absorption in achieving a radiation-balanced ZBLAN fiber laser (Conference Presentation)", Proc. SPIE 11298, Photonic Heat Engines: Science and Applications II, 112980I (9 March 2020); https://doi.org/10.1117/12.2546600
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KEYWORDS
Absorption
Fiber lasers
ZBLAN
External quantum efficiency
Quantum efficiency
High power fiber lasers
Laser development
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