An intensity modulation based high-speed and high-resolution long-period fiber grating sensor interrogating system

2006 ◽  
Author(s):  
Chia-Chin Chiang ◽  
Chow-Shing Shin ◽  
Shien-Kuei Liaw
Keyword(s):  
High Resolution ◽  
High Speed ◽  
Intensity Modulation ◽  
Fiber Grating ◽  
Long Period Fiber Grating ◽  
Long Period ◽  
Fiber Grating Sensor ◽  
Period Fiber Grating

Long-period fiber grating sensor for detection of viruses

2017 ◽  
Vol 250 ◽  
pp. 32-38 ◽  
Author(s):  
Marta Janczuk-Richter ◽  
Magdalena Dominik ◽  
Ewa Roźniecka ◽  
Marcin Koba ◽  
Predrag Mikulic ◽  
...  
Keyword(s):  
Fiber Grating ◽  
Long Period Fiber Grating ◽  
Long Period ◽  
Fiber Grating Sensor ◽  
Period Fiber Grating

High-sensitivity long-period fiber grating sensor with SAN/cryptophane A for coal mine gas detection

2013 ◽  
Vol 11 (8) ◽  
pp. 080601-80604 ◽  
Author(s):  
Jianchun Yang Jianchun Yang ◽  
Jing Huang Jing Huang ◽  
Xueming Li Xueming Li ◽  
Shanya Li Shanya Li ◽  
Binbin Luo Binbin Luo ◽  
...  
Keyword(s):  
Coal Mine ◽  
High Sensitivity ◽  
Gas Detection ◽  
Fiber Grating ◽  
Long Period Fiber Grating ◽  
Long Period ◽  
Coal Mine Gas ◽  
Fiber Grating Sensor ◽  
Mine Gas ◽  
Period Fiber Grating

Spectral characteristics of a two-section multilayer long-period fiber grating sensor

Optik ◽  
2014 ◽  
Vol 125 (17) ◽  
pp. 4689-4693 ◽  
Author(s):  
Jilong Bao ◽  
Peihong Cheng ◽  
Hongxia Zhao ◽  
Jinxia Wang ◽  
Ligang Wu
Keyword(s):  
Spectral Characteristics ◽  
Fiber Grating ◽  
Long Period Fiber Grating ◽  
Long Period ◽  
Fiber Grating Sensor ◽  
Period Fiber Grating

scholarly journals Long-Period Fiber Grating Sensor Based on a Conductive Polymer Functional Layer

Polymers ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 2023 ◽  
Author(s):  
Ching-Yu Hsu ◽  
Chia-Chin Chiang ◽  
Hsin-Yi Wen ◽  
Jian-Jie Weng ◽  
Jing-Lun Chen ◽  
...  
Keyword(s):  
Conductive Polymer ◽  
Wavelength Shift ◽  
Fiber Grating ◽  
Functional Layer ◽  
Long Period Fiber Grating ◽  
Long Period ◽  
Fiber Grating Sensor ◽  
Average Transmission ◽  
Period Fiber Grating ◽  
Grating Depth

A temperature sensor was fabricated with a functional conductive poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) coating on a long-period fiber grating (LPFG). The LPFG was fabricated by laser-assisted wet-chemical etching for controlling the grating depth of the LPFG after the treated surface of an optical fiber was inscribed by laser light. The functional conductive polymer acts as a temperature sustained sensing layer and enhances the grating depth of the LPFG sensor as a strain buffer at various temperatures. The sensor was subjected to three cycles of temperature measurement to investigate the sensor’s wavelength shift and energy loss when exposed to temperatures between 30 and 100 °C. Results showed that the sensor’s average wavelength sensitivity and its linearity were 0.052 nm/°C and 99%, respectively; average transmission sensitivity and linearity were 0.048 (dB/°C) and 95%, respectively.

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