Wavelength shift and split of cladding mode resonances in microbend long-period fiber gratings under torsion

2004 ◽  
Vol 232 (1-6) ◽  
pp. 159-166 ◽  
Author(s):  
Oleg V. Ivanov
Keyword(s):  
Wavelength Shift ◽  
Fiber Gratings ◽  
Long Period ◽  
Long Period Fiber Gratings ◽  
Cladding Mode

scholarly journals Cladding mode loss effect on transmission characteristics of mechanically induced long‐period fiber gratings

2020 ◽  
Vol 103 (11-12) ◽  
pp. 46-53
Author(s):  
Yasuhiro Tsutsumi ◽  
Kenta Kitahara ◽  
Masaharu Ohashi ◽  
Hirokazu Kubota ◽  
Yuji Miyoshi ◽  
...  
Keyword(s):  
Transmission Characteristics ◽  
Fiber Gratings ◽  
Long Period ◽  
Mode Loss ◽  
Long Period Fiber Gratings ◽  
Cladding Mode ◽  
Loss Effect

Tuning Cladding-Mode Propagation Mechanisms in Liquid Crystal Long-Period Fiber Gratings

2012 ◽  
Vol 30 (8) ◽  
pp. 1201-1207 ◽  
Author(s):  
Aleksandra Czapla ◽  
Wojtek J. Bock ◽  
Tomasz R. Wolinski ◽  
Roman Dabrowski ◽  
Edward Nowinowski-Kryszelnicki
Keyword(s):  
Liquid Crystal ◽  
Mode Propagation ◽  
Fiber Gratings ◽  
Long Period ◽  
Long Period Fiber Gratings ◽  
Cladding Mode

scholarly journals Sensing and Demodulation of Special Long-Period Fiber Gratings Induced by ScanningCO2Laser Pulses

2012 ◽  
Vol 2012 ◽  
pp. 1-17 ◽  
Author(s):  
Tao Zhu ◽  
Leilei Shi ◽  
Min Liu ◽  
Wei Huang
Keyword(s):  
Single Mode ◽  
Laser Pulses ◽  
Single Mode Fiber ◽  
Wavelength Shift ◽  
Refractive Index Sensor ◽  
Fiber Gratings ◽  
Long Period ◽  
Investigation Methods ◽  
Long Period Fiber Gratings ◽  
Sensor Strain

A review of long-period fiber gratings (LPFGs) with special structures induced by scanning CO2laser pulses in single mode fiber (SMF) is presented in this paper. In the first part, the special structures and fabrication methods of LPFGs are demonstrated in detail. Next, the special LPFG-based sensors are demonstrated, such as refractive index sensor, strain sensor with temperature compensation, and torsion sensor without temperature crosstalking. Finally, several investigation methods including intensity, wavelength shift, and fiber ring laser demodulation are discussed.

Strain and Temperature Characteristics of Cascaded-Chirped Long Period Fiber Gratings Depending on Order of Cladding Mode

2021 ◽  
Author(s):  
Manuel Guterres Soares ◽  
Koken Fukushima ◽  
Bui Quoc Hung ◽  
Koki Nakaya ◽  
Atsushi Wada ◽  
...  
Keyword(s):  
Fiber Gratings ◽  
Temperature Characteristics ◽  
Long Period ◽  
Long Period Fiber Gratings ◽  
Cladding Mode

SUPPRESSION OF THE CLADDING MODE INTERFERENCE IN CASCADED LONG PERIOD FIBER GRATINGS WITH LIQUID CRYSTAL CLADDINGS

2004 ◽  
Vol 413 (1) ◽  
pp. 399-406 ◽  
Author(s):  
Hak-Rin Kim ◽  
Yonghyun Kim ◽  
Yoonchan Jeong ◽  
Seungin Baek ◽  
Yong Wook Lee ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Fiber Gratings ◽  
Long Period ◽  
Long Period Fiber Gratings ◽  
Cladding Mode ◽  
Mode Interference

Core-cladding mode coupling of tilted long period fiber gratings in dual-mode fibers

2017 ◽  
Vol 393 ◽  
pp. 238-243 ◽  
Author(s):  
Yu Liu ◽  
Yuean Mi ◽  
Bofeng Zhu ◽  
Haisu Li ◽  
Wei Jian ◽  
...  
Keyword(s):  
Mode Coupling ◽  
Dual Mode ◽  
Fiber Gratings ◽  
Long Period ◽  
Long Period Fiber Gratings ◽  
Cladding Mode
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