Top-hat beam output from a large mode area microstructured fiber for beam delivery

Author(s):  
Pierre Calvet ◽  
Constance Valentin ◽  
Yves Quiquempois ◽  
Géraud Bouwmans ◽  
Laurent Bigot ◽  
...  
2016 ◽  
Vol 24 (8) ◽  
pp. 8978 ◽  
Author(s):  
Huifeng Wei ◽  
Kangkang Chen ◽  
Yucheng Yang ◽  
Jinyan Li

2009 ◽  
Vol 17 (20) ◽  
pp. 18076 ◽  
Author(s):  
N. Healy ◽  
J. R. Sparks ◽  
M. N. Petrovich ◽  
P. J. A. Sazio ◽  
J. V. Badding ◽  
...  

2019 ◽  
Vol 27 (20) ◽  
pp. 27991
Author(s):  
Wei Wang ◽  
Hai-Dong Xu ◽  
Qi-Hao Yang ◽  
Fan-Di Zhou ◽  
Zheng-Ran Li ◽  
...  

2013 ◽  
Vol 311 ◽  
pp. 129-133 ◽  
Author(s):  
Ajanta Barh ◽  
Somnath Ghosh ◽  
R.K. Varshney ◽  
Bishnu P. Pal

2021 ◽  
Vol 9 ◽  
Author(s):  
Caijian Xie ◽  
Tigang Ning ◽  
Jingjing Zheng ◽  
Li Pei ◽  
Jianshuai Wang ◽  
...  

Abstract A kind of tapered segmented cladding fiber (T-SCF) with large mode area (LMA) is proposed, and the mode and amplification characteristics of T-SCFs with concave, linear, and convex tapered structures are investigated based on finite-element method (FEM) and few-mode steady-state rate equation. Simulation results indicate that the concave tapered structure can introduce high loss for high-order modes (HOMs) that is advantageous to achieve single-mode operation, whereas the convex tapered structure provides large effective mode area that can help to mitigate nonlinear effects. Meanwhile, the small-to-large amplification scheme shows further advantages on stripping off HOMs, and the large-to-small amplification scheme decreases the heat load density induced by the high-power pump. Moreover, single-mode propagation performance, effective mode area, and heat load density of the T-SCF are superior to those of tapered step index fiber (T-SIF). These theoretical model and numerical results can provide instructive suggestions for designing high-power fiber lasers and amplifiers.


Optik ◽  
2021 ◽  
pp. 167188
Author(s):  
She Yu-lai ◽  
Zhang Wen-tao ◽  
Liang Guoling ◽  
Tang yuan ◽  
Tu Shan

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