Optimization of photonic bandgap fiber long period grating refractive-index sensors

2009 ◽  
Vol 282 (24) ◽  
pp. 4723-4728 ◽  
Author(s):  
Qing Shi ◽  
Boris T. Kuhlmey
Keyword(s):  
Refractive Index ◽  
Photonic Bandgap ◽  
Long Period Grating ◽  
Photonic Bandgap Fiber ◽  
Long Period ◽  
Refractive Index Sensors

Optimization of Cladding-Structure-Modified Long-Period-Grating Refractive-Index Sensors

2007 ◽  
Vol 25 (1) ◽  
pp. 372-380 ◽  
Author(s):  
Jian Yang ◽  
Li Yang ◽  
Chang-Qing Xu ◽  
Yingfu Li
Keyword(s):  
Refractive Index ◽  
Long Period Grating ◽  
Long Period ◽  
Refractive Index Sensors

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.

scholarly journals Long period grating resonances in photonic bandgap fiber

2006 ◽  
Vol 14 (7) ◽  
pp. 3007 ◽  
Author(s):  
P. Steinvurzel ◽  
E. D. Moore ◽  
E. C. Mägi ◽  
B. T. Kuhlmey ◽  
B. J. Eggleton
Keyword(s):  
Photonic Bandgap ◽  
Long Period Grating ◽  
Photonic Bandgap Fiber ◽  
Long Period

scholarly journals In-line Mach-Zehnder interferometer composed of microtaper and long-period grating in all-solid photonic bandgap fiber

2012 ◽  
Vol 101 (14) ◽  
pp. 141106 ◽  
Author(s):  
Zhifang Wu ◽  
Yan-ge Liu ◽  
Zhi Wang ◽  
Tingting Han ◽  
Shuo Li ◽  
...  
Keyword(s):  
Photonic Bandgap ◽  
Zehnder Interferometer ◽  
Long Period Grating ◽  
Photonic Bandgap Fiber ◽  
Long Period ◽  
Mach Zehnder Interferometer
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