Demonstration of spatial distribution of photodarkening in Yb-doped large-mode-area fibre laser

2008 ◽  
Vol 44 (16) ◽  
pp. 960 ◽  
Author(s):  
J. Koponen ◽  
M. Laurila ◽  
M. Hotoleanu
Keyword(s):  
Spatial Distribution ◽  
Fibre Laser ◽  
Large Mode Area ◽  
Mode Area

Q-Switched Large-Mode-Area Yb-Doped Fibre Laser Using GaAs as Saturable Absorber

2007 ◽  
Vol 24 (5) ◽  
pp. 1264-1266 ◽  
Author(s):  
Fu Sheng-Gui ◽  
Guo Zhan-Cheng ◽  
Si Li-Bin ◽  
Zhao Ying ◽  
Yuan Shu-Zhong ◽  
...  
Keyword(s):  
Saturable Absorber ◽  
Fibre Laser ◽  
Large Mode Area ◽  
Mode Area

scholarly journals Q-switched erbium doped fibre laser utilising a novel large mode area fibre

1997 ◽  
Vol 33 (5) ◽  
pp. 393 ◽  
Author(s):  
G.P. Lees ◽  
D. Taverner ◽  
D.J. Richardson ◽  
L. Dong ◽  
T.P. Newson
Keyword(s):  
Fibre Laser ◽  
Large Mode Area ◽  
Erbium Doped ◽  
Mode Area

Power scaling of a 60% efficient, 793 nm pumped, 2 μm large mode area fibre laser

2006 ◽  
Author(s):  
David G. Lancaster ◽  
Alex Hemmings ◽  
Shayne Bennetts ◽  
Stuart D. Jackson
Keyword(s):  
Fibre Laser ◽  
Power Scaling ◽  
Large Mode Area ◽  
Mode Area

Cladding-Pumped Tm 3+ -Doped Large-Mode-Area Fibre Laser Highly Efficient Output at Approximately 2 μm

2006 ◽  
Vol 23 (9) ◽  
pp. 2450-2451 ◽  
Author(s):  
Wang Yue-Zhu ◽  
Zhang Yun-Jun ◽  
Yao Bao-Quan ◽  
Ju You-Lun
Keyword(s):  
Fibre Laser ◽  
Large Mode Area ◽  
Highly Efficient ◽  
Mode Area

High-power double-clad large-mode-area photonic crystal fibre laser

2006 ◽  
Author(s):  
Kang Li ◽  
Yishan Wang ◽  
Wei Zhao ◽  
Guofu Chen ◽  
Qinjun Peng ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
High Power ◽  
Fibre Laser ◽  
Photonic Crystal Fibre ◽  
Large Mode Area ◽  
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.

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