Benefit of large-mode area fiber for photonic nanojet sub-micron laser processing (Conference Presentation)

2020 ◽  
Author(s):  
Djamila Bouaziz ◽  
Robin Pierron ◽  
Grégoire Chabrol ◽  
Assia Guessoum ◽  
Nacer Eddine Demagh ◽  
...  
Keyword(s):  
Laser Processing ◽  
Large Mode Area ◽  
Photonic Nanojet ◽  
Mode Area

Large-mode-area optical fiber for photonic nanojet generation

2019 ◽  
Vol 44 (10) ◽  
pp. 2474
Author(s):  
Robin Pierron ◽  
Grégoire Chabrol ◽  
Stéphane Roques ◽  
Pierre Pfeiffer ◽  
Jean-Paul Yehouessi ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Large Mode Area ◽  
Photonic Nanojet ◽  
Mode Area

scholarly journals Amplification characteristics in active tapered segmented cladding fiber with large mode area

2021 ◽  
Vol 9 ◽  
Author(s):  
Caijian Xie ◽  
Tigang Ning ◽  
Jingjing Zheng ◽  
Li Pei ◽  
Jianshuai Wang ◽  
...  
Keyword(s):  
High Power ◽  
Heat Load ◽  
Nonlinear Effects ◽  
Single Mode ◽  
Large Mode Area ◽  
High Loss ◽  
Effective Mode Area ◽  
Steady State Rate ◽  
State Rate ◽  
Mode Area

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.

Optimal design of Large Mode Area All-Solid-Fiber Using a Gray Relational Optimization Technique

Optik ◽  
2021 ◽  
pp. 167188
Author(s):  
She Yu-lai ◽  
Zhang Wen-tao ◽  
Liang Guoling ◽  
Tang yuan ◽  
Tu Shan
Keyword(s):  
Optimal Design ◽  
Optimization Technique ◽  
Large Mode Area ◽  
Mode Area

Large Mode Area Solid-Core Photonic Bandgap Yb-doped Fiber with Hetero-Structured Cladding for Compact High-Power Laser Systems

2021 ◽  
pp. 1-1
Author(s):  
Olivier Vanvincq ◽  
Andy Cassez ◽  
Remi Habert ◽  
Hicham El Hamzaoui ◽  
Karen Baudelle ◽  
...  
Keyword(s):  
High Power ◽  
Photonic Bandgap ◽  
Solid Core ◽  
High Power Laser ◽  
Power Laser ◽  
Large Mode Area ◽  
Laser Systems ◽  
Mode Area

scholarly journals Thermal modeling of gain competition in Yb-doped large-mode-area photonic-crystal fiber amplifier

2015 ◽  
Vol 23 (14) ◽  
pp. 18638 ◽  
Author(s):  
Lorenzo Rosa ◽  
Enrico Coscelli ◽  
Federica Poli ◽  
Annamaria Cucinotta ◽  
Stefano Selleri
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
Thermal Modeling ◽  
Fiber Amplifier ◽  
Large Mode Area ◽  
Crystal Fiber ◽  
Mode Area

The design of large-mode-area single-mode fiber

2008 ◽  
Author(s):  
Guohua Wu ◽  
Libo Li ◽  
Qihong Lou ◽  
Jun Zhou ◽  
Wenhan Huang ◽  
...  
Keyword(s):  
Single Mode ◽  
Single Mode Fiber ◽  
Large Mode Area ◽  
Mode Area
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