Intensity-based optical fiber strain sensor using long-period fiber gratings and a core mode blocker

2009 ◽  
Vol 20 (3) ◽  
pp. 034020 ◽  
Author(s):  
Dusun Hwang ◽  
Linh Viet Nguyen ◽  
Dae Seung Moon ◽  
Youngjoo Chung
Keyword(s):  
Optical Fiber ◽  
Strain Sensor ◽  
Core Mode ◽  
Fiber Gratings ◽  
Long Period ◽  
Long Period Fiber Gratings

scholarly journals Immunosensor Based on Long-Period Fiber Gratings for Detection of Viruses Causing Gastroenteritis

Sensors ◽  
2020 ◽  
Vol 20 (3) ◽  
pp. 813 ◽  
Author(s):  
Marta Janczuk-Richter ◽  
Beata Gromadzka ◽  
Łukasz Richter ◽  
Mirosława Panasiuk ◽  
Karolina Zimmer ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Medical Diagnostics ◽  
Label Free ◽  
Fiber Gratings ◽  
Fast Detection ◽  
Long Period ◽  
Highly Sensitive ◽  
Protein Receptors ◽  
Long Period Fiber Gratings ◽  
Vaccine Testing

Since the norovirus is the main cause of acute gastroenteritis all over the world, its fast detection is crucial in medical diagnostics. In this work, a rapid, sensitive, and selective optical fiber biosensor for the detection of norovirus virus-like particles (VLPs) is reported. The sensor is based on highly sensitive long-period fiber gratings (LPFGs) coated with antibodies against the main coat protein of the norovirus. Several modification methods were verified to obtain reliable immobilization of protein receptors on the LPFG surface. We were able to detect 1 ng/mL norovirus VLPs in a 40-min assay in a label-free manner. Thanks to the application of an optical fiber as the sensor, there is a possibility to increase the user’s safety by separating the measurement point from the signal processing setup. Moreover, our sensor is small and light, and the proposed assay is straightforward. The designed LPFG-based biosensor could be applied in both fast norovirus detection and in vaccine testing.

Fabrication of long period fiber gratings based on embedded-core hollow optical fiber

2014 ◽  
Author(s):  
Chunying Guan ◽  
Xing Zhong ◽  
Xiaozhong Tian ◽  
Shuqiang Li ◽  
Libo Yuan
Keyword(s):  
Optical Fiber ◽  
Fiber Gratings ◽  
Long Period ◽  
Long Period Fiber Gratings

scholarly journals Optical Fiber Torsion Sensor with Mechanically Induced Long Period Fiber Gratings in Rare-Earth Doped Fibers

2014 ◽  
Vol 04 (06) ◽  
pp. 129-135 ◽  
Author(s):  
Maria Pulido-Navarro ◽  
José Álvarez-Chávez ◽  
Daniel Ceballos-Herrera ◽  
Ponciano Escamilla-Ambrosio
Keyword(s):  
Rare Earth ◽  
Optical Fiber ◽  
Fiber Gratings ◽  
Long Period ◽  
Long Period Fiber Gratings ◽  
Doped Fibers ◽  
Rare Earth Doped
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