Long-Period Fiber Gratings and their Sensing Applications

2012 ◽  
Author(s):  
Toru Mizunami ◽  
Toshihiro Mori ◽  
Tsubasa Fujiyoshi
Keyword(s):  
Fiber Gratings ◽  
Long Period ◽  
Sensing Applications ◽  
Long Period Fiber Gratings

Resonance peak shift and dual peak separation of long-period fiber gratings for sensing applications

2001 ◽  
Vol 13 (7) ◽  
pp. 699-701 ◽  
Author(s):  
Young-Geun Han ◽  
Byeong Ha Lee ◽  
Won-Taek Han ◽  
Un-Chul Paek ◽  
Youngjoo Chung
Keyword(s):  
Peak Shift ◽  
Resonance Peak ◽  
Fiber Gratings ◽  
Long Period ◽  
Peak Separation ◽  
Sensing Applications ◽  
Long Period Fiber Gratings

Novel Long-Period Fiber Gratings: Fabrication and Sensing Applications

2017 ◽  
Author(s):  
Liyong Ren ◽  
Kaili Ren ◽  
Xudong Kong ◽  
Jian Liang ◽  
Haijuan Ju ◽  
...  
Keyword(s):  
Fiber Gratings ◽  
Long Period ◽  
Sensing Applications ◽  
Long Period Fiber Gratings

Fabrication of long period fiber gratings by electric arc for strain sensing applications

2014 ◽  
Author(s):  
María Guadalupe Pulido-Navarro ◽  
José Alfredo Álvarez-Chávez ◽  
Ponciano Jorge Escamilla-Ambrosio
Keyword(s):  
Electric Arc ◽  
Strain Sensing ◽  
Fiber Gratings ◽  
Long Period ◽  
Sensing Applications ◽  
Long Period Fiber Gratings

Mechanically induced long period fiber gratings on single mode tapered optical fiber for structure sensing applications

2015 ◽  
Author(s):  
María G. Pulido-Navarro ◽  
Sigifredo Marrujo-García ◽  
José A. Álvarez-Chávez ◽  
Jesús S. Velázquez-González ◽  
Fernando Martínez-Piñón ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Single Mode ◽  
Fiber Gratings ◽  
Long Period ◽  
Sensing Applications ◽  
Long Period Fiber Gratings ◽  
Tapered Optical Fiber

scholarly journals Transverse Load and Temperature Sensing Using Multiplexed Long-Period Fiber Gratings

Photonics ◽  
2020 ◽  
Vol 8 (1) ◽  
pp. 1
Author(s):  
Ismael Torres-Gómez ◽  
Alejandro Martínez-Rios ◽  
Gilberto Anzueto-Sánchez ◽  
Daniel. E. Ceballos-Herrera ◽  
Guillermo Salceda-Delgado
Keyword(s):  
Simultaneous Measurement ◽  
Room Temperature ◽  
Transverse Load ◽  
Fiber Grating ◽  
Fiber Gratings ◽  
Long Period Fiber Grating ◽  
Long Period ◽  
Sensing Applications ◽  
Long Period Fiber Gratings ◽  
Period Fiber Grating

The simultaneous measurement of transverse load and temperature using two long-period fiber gratings multiplexed in the wavelength domain is presented experimentally. For this, a mechanically induced long-period fiber grating (MI-LPFG) and a long-period fiber grating inscribed by a continuous-wave CO2 laser (CO2 LPFG) are connected in cascade. First, the transverse load and the temperature measurements were individually performed by the multiplexed long-period fiber gratings configuration. The MI-LPFG is subject to a transverse load variation from 0–2000 g with steps of 500 g, whereas the CO2 LPFG is unloaded and they are kept at room temperature. Similarly, the CO2 LPFG is subject to a temperature variation from 30 to 110 °C by increments of 20 °C, while the MI-LPFG with a constant transverse load of 2000 g is kept at room temperature. Subsequently, the simultaneous measurement of the transverse load and the temperature is performed by the multiplexed long-period fiber grating following the steps outlined above. According to the experimental results, the transverse load and temperature measurement present high repeatability for the individual and simultaneous process. Moreover, the multiplexed LPFGs exhibit low cladding-mode crosstalk of transverse load and temperature. The coarse wavelength-division multiplexing (CWDM) of long-period fiber gratings is an attractive alternative technique in optical fiber distributed sensing applications.

Embedded corrugated long-period fiber gratings for sensing applications

2012 ◽  
Vol 51 (10) ◽  
pp. 1453 ◽  
Author(s):  
Hsiao-Yuh Wang ◽  
Shih-Min Chuo ◽  
Chih-Yu Huang ◽  
Lon A. Wang
Keyword(s):  
Fiber Gratings ◽  
Long Period ◽  
Sensing Applications ◽  
Long Period Fiber Gratings
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