scholarly journals A methode of estimating the reflectivity and refractive-index modulation of double-cladding large core fiber Bragg grating

2012 ◽  
Vol 61 (24) ◽  
pp. 244205
Author(s):  
Zhou Ren-Lai ◽  
Ju You-Lun ◽  
Yang Chao ◽  
Wang Wei ◽  
Wang Yue-Zhu
Keyword(s):  
Refractive Index ◽  
Fiber Bragg Grating ◽  
Bragg Grating ◽  
Refractive Index Modulation ◽  
Large Core ◽  
Core Fiber ◽  
Index Modulation

scholarly journals Quantitative investigation of the refractive-index modulation within the core of a fiber Bragg grating

2006 ◽  
Vol 14 (22) ◽  
pp. 10332 ◽  
Author(s):  
Betty P. Kouskousis ◽  
Claire M. Rollinson ◽  
Daniel J. Kitcher ◽  
Stephen F. Collins ◽  
Greg W. Baxter ◽  
...  
Keyword(s):  
Refractive Index ◽  
Fiber Bragg Grating ◽  
Bragg Grating ◽  
Refractive Index Modulation ◽  
Quantitative Investigation ◽  
The Core ◽  
Index Modulation

Filament-Based Fabrication and Performance Analysis of Fiber Bragg Grating Sensors Using Ultrashort Pulse Laser

2014 ◽  
Vol 2 (2) ◽  
Author(s):  
Farid Ahmed ◽  
Martin B. G. Jun
Keyword(s):  
Refractive Index ◽  
Performance Analysis ◽  
Fiber Bragg Grating ◽  
Contact Force ◽  
Ultrashort Pulse ◽  
Axial Strain ◽  
Single Mode ◽  
Force Sensor ◽  
Bragg Grating ◽  
Refractive Index Modulation

The method of ultrashort pulse filamentation induced refractive index modification is employed to inscribe fiber Bragg grating (FBG) in single-mode optical fiber (SMF). Line-by-line index inscription technique is used to write refractive index modulation in the core of SMF. The proposed pulse filamentation based index modification enables controlled and flexible writing of FBGs in optical fibers. Performance analysis of the fabricated FBG has been carried out for temperature, contact force, pressure, and axial strain sensing. The in-fiber FBG exhibits sensing performance very similar to FBGs commercially available to date. Then, the written FBG is engineered to demonstrate highly sensitive contact force sensor.

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