26 February 2018 Monolithic diffraction-limited 976-nm laser based on saddle-shaped photo darkening-free Yb-doped fiber
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Proceedings Volume 10512, Fiber Lasers XV: Technology and Systems; 105121R (2018) https://doi.org/10.1117/12.2289918
Event: SPIE LASE, 2018, San Francisco, California, United States
Abstract
Monolithic 976 nm laser design based on a newly developed saddle-shaped Yb-doped fiber has been proposed. The fiber has central single-mode part with core diameter of about 12 μm and ultra-thin square-shaped clad with side of about 42x42 μm. At the both ends of the saddle-shaped fiber the core and the clad sizes were adiabatically increased up to 20/(70x70) μm and the fiber could be spliced with standard (80..125 μm clad) passive fibers using commercially available equipment. Single-mode laser at 976 nm based on the developed fiber has been fabricated and photodarkening-free operation with output power of 10.6 W, which is the record high for all-fiber laser schemes, has been demonstrated.
Conference Presentation
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Svetlana S. Aleshkina, Denis S. Lipatov, Andrei E. Levchenko, Oleg I. Medvedkov, Konstantin K. Bobkov, Mikhail M. Bubnov, Alexei N. Guryanov, Mikhail E. Likhachev, "Monolithic diffraction-limited 976-nm laser based on saddle-shaped photo darkening-free Yb-doped fiber", Proc. SPIE 10512, Fiber Lasers XV: Technology and Systems, 105121R (26 February 2018); doi: 10.1117/12.2289918; https://doi.org/10.1117/12.2289918
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