An integrated wavelength selective coupler based on long period grating written in twin-core fiber

2019 ◽  
Vol 445 ◽  
pp. 1-4 ◽  
Author(s):  
Xiaofeng Xu ◽  
Xiaowei Ouyang ◽  
Ai Zhou ◽  
Hongchang Deng ◽  
Libo Yuan
Keyword(s):  
Long Period Grating ◽  
Long Period ◽  
Core Fiber

A Temperature-Insensitive Refractive Index Sensor Based on No-Core Fiber Embedded Long Period Grating

2017 ◽  
Vol 35 (24) ◽  
pp. 5391-5396 ◽  
Author(s):  
Tao Geng ◽  
Shuo Zhang ◽  
Feng Peng ◽  
Wenlei Yang ◽  
Cuiting Sun ◽  
...  
Keyword(s):  
Refractive Index ◽  
Refractive Index Sensor ◽  
Long Period Grating ◽  
Long Period ◽  
Core Fiber

Simplified hollow core fiber long period grating for detection of micro-curvature of power grid wires

Optik ◽  
2020 ◽  
Vol 208 ◽  
pp. 164003
Author(s):  
Kai Zhang ◽  
Jun Yuan ◽  
Wei Yao ◽  
Yang Zhao ◽  
Bo Wang ◽  
...  
Keyword(s):  
Power Grid ◽  
Hollow Core ◽  
Long Period Grating ◽  
Long Period ◽  
Core Fiber

Long-period grating based single-mode fiber to multi-core fiber pump coupler

2020 ◽  
Author(s):  
Liliana M. Sousa ◽  
Margarida Facão ◽  
Gil M. Fernandes ◽  
Rogério N. Nogueira ◽  
Ana M. Rocha
Keyword(s):  
Single Mode ◽  
Single Mode Fiber ◽  
Long Period Grating ◽  
Long Period ◽  
Core Fiber

Chiral long period grating with etched multi-core fiber

2016 ◽  
Author(s):  
Shen Xiang ◽  
Zhang fangfang ◽  
Yang Luyun ◽  
Peng Jinggang ◽  
Li Jinyan
Keyword(s):  
Long Period Grating ◽  
Long Period ◽  
Core Fiber

scholarly journals Refractive Index Sensors Based on Long-Period Grating in a Negative Curvature Hollow-Core Fiber

Sensors ◽  
2021 ◽  
Vol 21 (5) ◽  
pp. 1803
Author(s):  
Hanna Izabela Stawska ◽  
Maciej Andrzej Popenda
Keyword(s):  
Refractive Index ◽  
Negative Curvature ◽  
Hollow Core ◽  
Long Period Grating ◽  
Fiber Gratings ◽  
Long Period ◽  
Analytical Formulas ◽  
Core Fiber ◽  
Refractive Index Sensors ◽  
Transmission Windows

Long-period optical fiber gratings (LPGs) are one of the widely used concepts for the sensing of refractive index (RI) changes. Negative curvature hollow-core fibers (NCHCFs), with their relatively large internal diameters that are easy to fill with liquids, appear as a very interesting medium to combine with the idea of LPGs and use for RI sensing. However, to date, there has been no investigation of the RI sensing capabilities of the NCHCF-based LPGs. The results presented in the paper do not only address this matter, but also compare the RI sensitivities of the NCHCFs alone and the gratings. By modeling two revolver-type fibers, with their internal diameters reflecting the results of the possible LPG-inscription process, the authors show that the fibers’ transmission windows shift in response to the RI change, resulting in changes in RI sensitivities as high as −4411 nm/RIU. On the contrary, the shift in the transmission dip of the NCHCF-based LPGs corresponds to a sensitivity of −658 nm/RIU. A general confirmation of these results was ensured by comparing the analytical formulas describing the sensitivities of the NCHCFs and the NCHCF-based LPGs.

Fiber coupler based on dual-core fiber long-period grating

2018 ◽  
Author(s):  
Jing Yang ◽  
Jinhui Shi ◽  
Chunying Guan ◽  
Meng Wang ◽  
Zengxi Wei ◽  
...  
Keyword(s):  
Long Period Grating ◽  
Fiber Coupler ◽  
Long Period ◽  
Core Fiber ◽  
Dual Core

Bend-induced long period grating in a helical core fiber

2020 ◽  
Vol 45 (7) ◽  
pp. 1595
Author(s):  
Kinga Zolnacz ◽  
Maciej Napiorkowski ◽  
Anna Kiczor ◽  
Mariusz Makara ◽  
Pawel Mergo ◽  
...  
Keyword(s):  
Long Period Grating ◽  
Long Period ◽  
Core Fiber

Bend-compensated long period grating in hole-assisted eccentric-core fiber

2019 ◽  
Vol 434 ◽  
pp. 19-22 ◽  
Author(s):  
Ping Li ◽  
Meng Wang ◽  
Jianan Fu ◽  
Jinhui Shi ◽  
Zheng Zhu ◽  
...  
Keyword(s):  
Long Period Grating ◽  
Long Period ◽  
Core Fiber
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