An Efficient, High Power, Monolithic, Single Mode Thulium Fibre Laser

2013 ◽  
Author(s):  
A. Hemming ◽  
N. Simakov ◽  
A. Davidson ◽  
D. Stepanov ◽  
L. Corena ◽  
...  
Keyword(s):  
High Power ◽  
Single Mode ◽  
Fibre Laser

High-power single-mode neodymium fibre laser

1997 ◽  
Vol 27 (1) ◽  
pp. 1-2 ◽  
Author(s):  
Evgenii M Dianov ◽  
A V Belov ◽  
Igor' A Bufetov ◽  
V N Protopopov ◽  
A N Gur'yanov ◽  
...  
Keyword(s):  
High Power ◽  
Single Mode ◽  
Fibre Laser

scholarly journals Yb3+ doped single-mode silica fibre laser system for high peak power applications

2020 ◽  
Vol 12 (4) ◽  
pp. 118
Author(s):  
Marcin Franczyk ◽  
Dariusz Pysz ◽  
Filip Włodarczyk ◽  
Ireneusz Kujawa ◽  
Ryszard Buczyński
Keyword(s):  
High Power ◽  
Fiber Lasers ◽  
Peak Power ◽  
Average Power ◽  
Single Mode ◽  
High Energy ◽  
High Peak ◽  
Fibre Laser ◽  
High Peak Power ◽  
Nanosecond Pulses

We present ytterbium doped silica single-mode fibre components for high power and high energy laser applications. We developed in-house the fibre laser with high efficiency of 65% according to the launched power, the threshold of 1.16W and the fibre length of 20 m. We also elaborated the fibre with 20 µm in diameter core suitable for amplifying the beam generated in oscillator. We implemented made in-house endcaps to prove the utility of the fibre towards high peak power applications. Full Text: PDF ReferencesStrategies Unlimited, The Worldwide Market for Lasers: Market Review and Forecast, 2020 DirectLink J. Zhu, P. Zhou, Y. Ma, X. Xu, and Z. Liu, "Power scaling analysis of tandem-pumped Yb-doped fiber lasers and amplifiers", Opt. Express 19, 18645 (2011) CrossRef IPG Photonics, Product information, accessed: October, 2020. DirectLink J.W. Dawson, M. J. Messerly, R. J. Beach, M. Y. Shverdin, E. A. Stappaerts, A. K. Sridharan, P. H. Pax, J. E. Heebner, C. W. Siders, and C. P. J. Barty, "Analysis of the scalability of diffraction-limited fiber lasers and amplifiers to high average power", Opt. Express 16, 13240 (2008) CrossRef W. Koechner, "Solid-State Laser Engineering", Springer Series in Optical Science, Berlin 1999 CrossRef A. V. Smith, and B. T. Do, "Bulk and surface laser damage of silica by picosecond and nanosecond pulses at 1064 nm", Appl. Opt. 47, 4812 (2008), CrossRef M. N. Zervas, C. Codemard, "High Power Fiber Lasers: A Review", IEEE J. Sel. Top. Quantum Electron. 20, 1, 2014 CrossRef D.J. Richardson, J. Nilsson, and W.A. Clarkson, "High power fiber lasers: current status and future perspectives [Invited]", J. Opt. Soc. Am. B, 27, 63, 2010, CrossRef M. Li, X. Chen, A. Liu, S. Gray, J. Wang, D. T. Walton; L. A. Zenteno, "Limit of Effective Area for Single-Mode Operation in Step-Index Large Mode Area Laser Fibers", J. Lightw. Technol., 27, 3010, 2009, CrossRef J. Limpert, S. Hofer, A. Liem, H. Zellmer, A. Tunnermann., S. Knoke, and H. Voelckel, "100-W average-power, high-energy nanosecond fiber amplifier", App.Phys.B 75, 477, 2002, CrossRef

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.

scholarly journals Design of large mode area all-solid anti-resonant fiber for high-power lasers

2021 ◽  
Vol 9 ◽  
Author(s):  
Xin Zhang ◽  
Shoufei Gao ◽  
Yingying Wang ◽  
Wei Ding ◽  
Pu Wang
Keyword(s):  
High Power ◽  
Single Mode ◽  
Higher Order ◽  
Coupling Scheme ◽  
Resonant Coupling ◽  
Higher Order Modes ◽  
Mode Loss ◽  
Fiber Mode ◽  
Power Needs ◽  
Mode Area

Abstract High-power fiber lasers have experienced a dramatic development over the last decade. Further increasing the output power needs an upscaling of the fiber mode area, while maintaining a single-mode output. Here, we propose an all-solid anti-resonant fiber (ARF) structure, which ensures single-mode operation in broadband by resonantly coupling higher-order modes into the cladding. A series of fibers with core sizes ranging from 40 to 100 μm are proposed exhibiting maximum mode area exceeding 5000 μm2. Numerical simulations show this resonant coupling scheme provides a higher-order mode (mainly TE01, TM01, and HE21) suppression ratio of more than 20 dB, while keeping the fundamental mode loss lower than 1 dB/m. The proposed structure also exhibits high tolerance for core index depression.

High power neodymium-doped single transverse mode fibre laser

1993 ◽  
Vol 29 (17) ◽  
pp. 1500 ◽  
Author(s):  
H. Po ◽  
J.D. Cao ◽  
B.M. Laliberte ◽  
R.A. Minns ◽  
R.F. Robinson ◽  
...  
Keyword(s):  
High Power ◽  
Transverse Mode ◽  
Fibre Laser ◽  
Mode Fibre

Propagation of high-power partially coherent fibre laser beams in a real environment

2011 ◽  
Vol 20 (9) ◽  
pp. 094208 ◽  
Author(s):  
Ru-Mao Tao ◽  
Lei Si ◽  
Yan-Xing Ma ◽  
Yong-Chao Zou ◽  
Pu Zhou
Keyword(s):  
High Power ◽  
Laser Beams ◽  
Fibre Laser ◽  
Real Environment ◽  
Partially Coherent
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