Side pumping of double clad fiber laser with a nonfusional fiber coupler

2001 ◽  
Author(s):  
Jianqiu Xu ◽  
Junhua Lu ◽  
Jianren Lu ◽  
Ken-ichi Ueda
Keyword(s):  
Fiber Laser ◽  
Fiber Coupler ◽  
Side Pumping

Cylindrical vector beam fiber laser with a symmetric two-mode fiber coupler

2019 ◽  
Vol 7 (12) ◽  
pp. 1479 ◽  
Author(s):  
Yang Xu ◽  
Su Chen ◽  
Zhiqiang Wang ◽  
Bing Sun ◽  
Hongdan Wan ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Fiber Coupler ◽  
Vector Beam ◽  
Cylindrical Vector Beam

scholarly journals All-Chalcogenide Ring Fiber Laser

2021 ◽  
Author(s):  
Mohsen Rezaei ◽  
Martin Rochette
Keyword(s):  
Fiber Laser ◽  
Free Spectral Range ◽  
Ring Cavity ◽  
Resonant Cavity ◽  
Longitudinal Mode ◽  
Reduction Factor ◽  
Pump Light ◽  
Fiber Coupler ◽  
Laser Design ◽  
Brillouin Gain

Abstract We demonstrate the first all-chalcogenide Brillouin fiber laser as well as the first all-chalcogenide ring cavity laser. The compact device comprises two engineered components: an As2Se3 optical fiber coupler combined to an As2S3 amplifying fiber. While the coupler simultaneously enables insertion of pump light, extraction of laser light, and the formation of a ring cavity, the amplifying fiber provides nonlinear gain to ensure laser oscillation. Thanks to the strong Brillouin gain of As2S3, only 3 m of amplifying fiber is required, thus making a resonant cavity with a free spectral range significantly larger than the Brillouin gain spectrum. The laser therefore naturally enables single longitudinal mode operation without additional filtering device. Acting as a coherence enhancing component, the resulting Brillouin laser benefits of a linewidth reduction factor of 7 with respect to the pump laser. Finally, this laser design is compatible with a broad range of wavelengths that spreads from 1.55 µm up to 8 µm, thanks to its all-chalcogenide structure.

A new method of efficient side-pumping for high power double fiber laser

2006 ◽  
Author(s):  
Fan Zhang ◽  
Chuncan Wang ◽  
Zhi Tong ◽  
Shuisheng Jian
Keyword(s):  
Fiber Laser ◽  
High Power ◽  
New Method ◽  
Side Pumping

Side-pumping combiner for high-power fiber laser based on tandem pumping

2017 ◽  
Vol 56 (11) ◽  
pp. 1 ◽  
Author(s):  
Yanran Gu ◽  
Chengmin Lei ◽  
Jun Liu ◽  
Ruixian Li ◽  
Le Liu ◽  
...  
Keyword(s):  
Fiber Laser ◽  
High Power ◽  
Side Pumping

scholarly journals Loss mechanism of all-fiber cascaded side pumping combiner

2018 ◽  
Vol 6 ◽  
Author(s):  
Chengmin Lei ◽  
Zilun Chen ◽  
Yanran Gu ◽  
Hu Xiao ◽  
Jing Hou
Keyword(s):  
Experimental Investigation ◽  
Pump Power ◽  
Fiber Laser ◽  
Thermal Load ◽  
Coupling Efficiency ◽  
Two Stage ◽  
Loss Mechanism ◽  
Fiber Coating ◽  
Side Pumping ◽  
Future Work

Compared with end pumping fiber combiner, one of the advantages for side pumping combiner is the unlimited pumping points, which means multi-point or cascaded side pumping can be realized. However, the loss mechanism of the cascaded structure is rarely discussed. In this paper, we present the numerical and experimental investigation about the loss mechanism of a two-stage-cascaded side pumping combiner based on tapered-fused technique. The influence of loss mechanism on the coupling efficiency and thermal load of the fiber coating is analyzed according to simulations and experiments with different tapering ratios for the first stage. Based on the analysis, a cascaded component with total pump coupling efficiency of 96.4% handling a pump power of 1088 W is achieved by employing 1018 nm fiber laser as the pump source. Future work to further improve the performance of a cascaded side pumping combiner is discussed and prospected.

A new method for side-pumping double-cladding fiber laser

2005 ◽  
Author(s):  
Zhonglin Wu ◽  
Qihong Lou ◽  
Jingxing Dong ◽  
Yunrong Wei
Keyword(s):  
Fiber Laser ◽  
New Method ◽  
Side Pumping

A fused side-pumping optical fiber coupler based on twisting

2014 ◽  
Author(s):  
Bokai Yi ◽  
Xinzu Chang ◽  
Xuanfeng Zhou ◽  
Zilun Chen ◽  
Guomin Zhao
Keyword(s):  
Optical Fiber ◽  
Optical Fiber Coupler ◽  
Fiber Coupler ◽  
Side Pumping
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