scholarly journals Large mode area double clad ytterbium tapered fiber with circular birefringency

2019 ◽  
Author(s):  
Joona Rissanen ◽  
Andrei Fedotov ◽  
Teppo Noronen ◽  
Regina Gumenyuk ◽  
Yuri Chamorovskii ◽  
...  
Keyword(s):  
Large Mode Area ◽  
Tapered Fiber ◽  
Mode Area

High-power/energy large mode area tapered fiber amplifiers

2021 ◽  
Author(s):  
Vincent Roy ◽  
Paul Grenier ◽  
Louis Desbiens ◽  
Sebastien Deshaies ◽  
Marc Deladurantaye ◽  
...  
Keyword(s):  
High Power ◽  
Fiber Amplifiers ◽  
Large Mode Area ◽  
Tapered Fiber ◽  
Mode Area

Large mode area double-clad ytterbium-doped spun tapered fiber

2021 ◽  
Author(s):  
Andrei Fedotov ◽  
Vasiliy Ustimchik ◽  
Joona Rissanen ◽  
Teppo Noronen ◽  
Regina Gumenyuk ◽  
...  
Keyword(s):  
Large Mode Area ◽  
Tapered Fiber ◽  
Mode Area

Yb-doped large mode area tapered fiber with depressed cladding and dopant confinement

2017 ◽  
Author(s):  
V. Roy ◽  
C. Paré ◽  
B. Labranche ◽  
P. Laperle ◽  
L. Desbiens ◽  
...  
Keyword(s):  
Large Mode Area ◽  
Tapered Fiber ◽  
Mode Area

Large mode area double-clad ytterbium-doped tapered fiber with low birefringence

2021 ◽  
Author(s):  
Andrei Fedotov ◽  
Vasilii Ustimchik ◽  
Joona Rissanen ◽  
Teppo Noronen ◽  
Regina Gumenyuk ◽  
...  
Keyword(s):  
Large Mode Area ◽  
Tapered Fiber ◽  
Mode Area

Direction-dependent propagation of high-power femtosecond pulses through a large-mode-area tapered fiber

2018 ◽  
Vol 35 (7) ◽  
pp. 1681 ◽  
Author(s):  
G. Kumar ◽  
M. Rehan ◽  
V. Rastogi ◽  
D. A. Korobko ◽  
A. A. Sysolyatin
Keyword(s):  
High Power ◽  
Femtosecond Pulses ◽  
Large Mode Area ◽  
Tapered Fiber ◽  
Mode Area

scholarly journals Compression of femtosecond pulses in a wide wavelength range using a large-mode-area tapered fiber

Laser Physics ◽  
2019 ◽  
Vol 29 (2) ◽  
pp. 025104 ◽  
Author(s):  
M Rehan ◽  
G Kumar ◽  
V Rastogi ◽  
D A Korobko ◽  
A A Sysolyatin
Keyword(s):  
Wavelength Range ◽  
Femtosecond Pulses ◽  
Large Mode Area ◽  
Tapered Fiber ◽  
Wide Wavelength Range ◽  
Mode Area

Ultra-large mode area single frequency anisotropic MOPA with double clad Yb-doped tapered fiber

2018 ◽  
Author(s):  
Joona Rissanen ◽  
Valery Filippov ◽  
Andrei Fedotov ◽  
Regina Gumenyuk ◽  
Oleg V. Butov ◽  
...  
Keyword(s):  
Single Frequency ◽  
Large Mode Area ◽  
Tapered Fiber ◽  
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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