Sampled fiber Bragg grating for simultaneous refractive-index and temperature measurement

2001 ◽  
Vol 26 (11) ◽  
pp. 774 ◽  
Author(s):  
Xuewen Shu ◽  
Bashir A. L. Gwandu ◽  
Yu Liu ◽  
Lin Zhang ◽  
Ian Bennion
Keyword(s):  
Refractive Index ◽  
Temperature Measurement ◽  
Fiber Bragg Grating ◽  
Bragg Grating ◽  
Sampled Fiber Bragg Grating

Dual-Wavelength Sampled Fiber Bragg Grating by Changing Refractive Index of Fiber

2012 ◽  
Vol 39 (4) ◽  
pp. 0405001
Author(s):  
孙帼丹 Sun Guodan ◽  
王荣 Wang Rong ◽  
蒲涛 Pu Tao ◽  
魏志虎 Wei Zhihu
Keyword(s):  
Refractive Index ◽  
Fiber Bragg Grating ◽  
Dual Wavelength ◽  
Bragg Grating ◽  
Sampled Fiber Bragg Grating

scholarly journals Wavelength-Switchable Single-Longitudinal- Mode Thulium-Doped Fiber Laser With Sampled Fiber Bragg Grating

IEEE Access ◽  
2021 ◽  
Vol 9 ◽  
pp. 62212-62218
Author(s):  
Wenguo Han ◽  
Fengping Yan ◽  
Ting Feng ◽  
Luna Zhang ◽  
Biao Guan ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Fiber Bragg Grating ◽  
Longitudinal Mode ◽  
Single Longitudinal Mode ◽  
Bragg Grating ◽  
Sampled Fiber Bragg Grating

Simultaneous displacement and temperature measurement with a single fiber Bragg grating

2000 ◽  
Author(s):  
Xinyong Dong ◽  
Dejun Feng ◽  
Lei Ding ◽  
Shuzhong Yuan ◽  
Xiaoyi Dong
Keyword(s):  
Temperature Measurement ◽  
Fiber Bragg Grating ◽  
Single Fiber ◽  
Bragg Grating

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.

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