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Pranabesh Barua

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Articles

Nested-ring doping for highly efficient 1907  nm short-wavelength cladding-pumped thulium fiber lasers

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By Jayanta K. Sahu, Matthew Barber, Peter C. Shardlow, Pranabesh Barua
| osapublishing.org
T. Yin, Y. Song, X. Jiang, F. Chen, and S. He, Opt. Express 27, 15794 (2019). [Crossref] M. D. Burns, P. C. Shardlow, P. Barua, T. L. Jefferson-Brain, J. K. Sahu, and W. A. Clarkson, Opt. Lett. 44, 5230 (2019). [Crossref] A. Sincore, J. D. Bradford, J. Cook, L. Shah, and M. C. Richardson, IEEE J. Sel. Top. Quantum Electron. 24, 1 (2018). [Crossref] B. R. Johnson, D. Creeden, J. Limongelli, H. Pretorius, J. Blanchard, and S. D. Setzler, Proc. SPIE 9728, 972810 (2016). [Crossref] Y.-B. Xing, L. Liao, F. Bu, Y.-B. Wang, J.-G. Peng, N.-L.
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47  W continuous-wave 1726  nm thulium fiber laser core-pumped by an erbium fiber laser

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By Jayanta K. Sahu, Mark Burns, Pranabesh Barua, Peter C. Shardlow
| osapublishing.org
N. K. Thipparapu, Y. Wang, S. Wang, A. A. Umnikov, P. Barua, and J. K. Sahu, Opt. Mater. Express 9, 2446 (2019). [Crossref] R. Thouroude, H. Gilles, B. Cadier, T. Robin, A. Hideur, A. Tyazhev, R. Soulard, P. Camy, J.-L. Doualan, and M. Laroche, Laser Phys. Lett. 16, 025102 (2019). [Crossref] L. Zhang, J. Dong, and Y. Feng, IEEE J. Sel. Top. Quantum Electron. 24, 1400106 (2018). [Crossref] S. P. Garaba, J. Aitken, B. Slat, H. M. Dierssen, L. Lebreton, O. Zielinski, and J. Reisser, Environ. Sci. Technol. 52, 11699 (2018). [Crossref] K.
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656  W Er-doped, Yb-free large-core fiber laser

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By Johan Nilsson, Huaiqin Lin, Jayanta K. Sahu, Pranabesh Barua
| osapublishing.org
A continuous-wave erbium-doped ytterbium-free fiber laser generates a record-breaking pump-power-limited output power of 656 W at when cladding pumped by 0.98 μm diode lasers. The slope efficiency was 35.6% with respect to launched pump power, and the beam quality factor ( ) was . This value excludes a fraction of the power that emerged from the cladding, which we attribute in part to mode coupling between the 146 μm core and 700 μm inner cladding.
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