High-sensitivity, high-resolution polymer fiber Bragg grating humidity sensor harnessing microwave photonic filtering response analysis

2020 ◽  
Vol 45 (24) ◽  
pp. 6603
Author(s):  
Kun Zhu ◽  
Xin Cheng ◽  
Zhiyong Zhao ◽  
Chao Lu
Keyword(s):  
High Resolution ◽  
Fiber Bragg Grating ◽  
Humidity Sensor ◽  
High Sensitivity ◽  
Bragg Grating ◽  
Response Analysis ◽  
Polymer Fiber ◽  
Microwave Photonic

A fast response intrinsic humidity sensor based on an etched singlemode polymer fiber Bragg grating

2013 ◽  
Vol 203 ◽  
pp. 107-111 ◽  
Author(s):  
Ginu Rajan ◽  
Yusof Mohd Noor ◽  
Bing Liu ◽  
Eliathamby Ambikairaja ◽  
David J. Webb ◽  
...  
Keyword(s):  
Fiber Bragg Grating ◽  
Humidity Sensor ◽  
Fast Response ◽  
Bragg Grating ◽  
Polymer Fiber

Femtosecond laser microprinting of a polymer fiber Bragg grating for high-sensitivity temperature measurements

2018 ◽  
Vol 43 (14) ◽  
pp. 3409 ◽  
Author(s):  
Chi Li ◽  
Changrui Liao ◽  
Jia Wang ◽  
Zhengyong Li ◽  
Ying Wang ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Fiber Bragg Grating ◽  
High Sensitivity ◽  
Temperature Measurements ◽  
Bragg Grating ◽  
Polymer Fiber

Optical-to-RF phase shift conversion-based microwave photonic phase shifter using a fiber Bragg grating

2013 ◽  
Vol 39 (1) ◽  
pp. 142 ◽  
Author(s):  
Xudong Wang ◽  
Erwin H. W. Chan ◽  
Robert A. Minasian
Keyword(s):  
Phase Shift ◽  
Fiber Bragg Grating ◽  
Phase Shifter ◽  
Bragg Grating ◽  
Microwave Photonic

Relative Humidity Sensor Based on Tilted Fiber Bragg Grating With Polyvinyl Alcohol Coating

2009 ◽  
Vol 21 (7) ◽  
pp. 441-443 ◽  
Author(s):  
Yinping Miao ◽  
Bo Liu ◽  
Hao Zhang ◽  
Yuan Li ◽  
Haibin Zhou ◽  
...  
Keyword(s):  
Relative Humidity ◽  
Polyvinyl Alcohol ◽  
Fiber Bragg Grating ◽  
Humidity Sensor ◽  
Bragg Grating ◽  
Relative Humidity Sensor

Development of an Optical Fiber Sensor with a D-shaped Fiber Bragg Grating Integrated in a Loop-mirror Optical Fiber Laser as a High Sensitivity Refractometer

2021 ◽  
Vol 32 ◽  
Author(s):  
Binh Pham Thanh ◽  
Thuy Van Nguyen ◽  
Van Hoi Pham ◽  
Huy Bui ◽  
Thi Hong Cam Hoang ◽  
...  
Keyword(s):  
Refractive Index ◽  
Optical Fiber ◽  
Fiber Laser ◽  
Fiber Bragg Grating ◽  
Limit Of Detection ◽  
Optical Fiber Sensor ◽  
High Sensitivity ◽  
Optical Signal ◽  
Bragg Grating ◽  
Loop Mirror

In this paper, we report a new type of refractometer based on a D-shaped fiber Bragg grating (FBG) integrated in a loop-mirror optical fiber laser. This proposed sensor is used in wavelength interrogation method, in which the D-shaped FBG is applied as a refractive index (RI) sensing probe and a mirror to select mode of laser. The D-shaped FBG is prepared by the removal of a portion of the fiber cladding covering the FBG by means of side-polishing technique. The D-shaped FBG sensing probe integrated in a loop-mirror optical fiber laser with saturated pump technique, the characteristics of sensing signals have been improved to obtain stable intensity, narrower bandwidth and higher optical signal-to-noise ratio compare to normal reflection configuration. The limit of detection (LOD) of this sensor can be achieved to 2.95 x 10-4 RIU in the refractive index (RI) range of 1.42-1.44. Accordingly, we believe that the proposed refractometer has a huge potential for applications in biochemical-sensing technique.

scholarly journals High-Frequency Fiber Bragg Grating Sensing Interrogation System Using Sagnac-Loop-Based Microwave Photonic Filtering

2009 ◽  
Vol 21 (8) ◽  
pp. 519-521 ◽  
Author(s):  
Hongyan Fu ◽  
Wei Zhang ◽  
Chengbo Mou ◽  
Xuewen Shu ◽  
Lin Zhang ◽  
...  
Keyword(s):  
Fiber Bragg Grating ◽  
High Frequency ◽  
Bragg Grating ◽  
Microwave Photonic
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