Calibration of wavelength shift for a fibre Bragg grating using a single mode laser source

2006 ◽  
Author(s):  
H. Ji ◽  
A. B. Wedding ◽  
L. X. Kong ◽  
H. Y. Hsu ◽  
G.C. I. Lin ◽  
...  
Keyword(s):  
Single Mode ◽  
Laser Source ◽  
Bragg Grating ◽  
Wavelength Shift ◽  
Fibre Bragg Grating ◽  
Mode Laser ◽  
Single Mode Laser

SENSITIVITY MEASUREMENT OF FIBRE BRAGG GRATING SENSOR

2016 ◽  
Vol 78 (3) ◽  
Author(s):  
Suzairi Daud ◽  
Muhammad Safwan Abd Aziz ◽  
Kashif Tufail Chaudhary ◽  
Mahdi Bahadoran ◽  
Jalil Ali
Keyword(s):  
Tunable Laser ◽  
Sensor System ◽  
Laser Source ◽  
Bragg Grating ◽  
Wavelength Shift ◽  
Fibre Bragg Grating ◽  
Sensor Head ◽  
Fibre Bragg Grating Sensor ◽  
Pass Through ◽  
Bragg Grating Sensor

A practical pass-through type fibre Bragg grating (FBG) temperature sensor system have been designed, developed, simulated, and experimentally investigated. The performance of FBG was evaluated in harsh environments exposed under direct sunlight, rain, and wind. The sensor system designed directly focused with convex and hand lens. The temperature of FBG’s sensor head been measured. The broadband laser source was launched into the system using tunable laser source (TLS) and both transmission and reflection spectra of FBG sensor were measured by optical spectrum analyzer (OSA). Results shows that the Bragg wavelength shift,  increased proportionally with the temperature changes. The sensitivity of FBG were recorded at 0.0100 and 0.0132 nm °C-1 for the systems where convex and hand lens applied to the FBG’s sensor head respectively, while the sensitivity of 0.0118 nm °C-1 measured for the system without any focusing element applied.

Beam cleanup of a multimode fiber seeded by an off-center single-mode laser source

Optik ◽  
2013 ◽  
Vol 124 (16) ◽  
pp. 2501-2503 ◽  
Author(s):  
Jie Li ◽  
Hai-Chuan Zhao ◽  
Zi-Lun Chen ◽  
Xiao-Jun Xu
Keyword(s):  
Single Mode ◽  
Laser Source ◽  
Multimode Fiber ◽  
Mode Laser ◽  
Single Mode Laser

Coherent summation of the radiation of a single-mode laser diode array

2012 ◽  
Vol 42 (6) ◽  
pp. 561-564 ◽  
Author(s):  
S I Derzhavin ◽  
O A Dyukel' ◽  
N M Lyndin
Keyword(s):  
Laser Diode ◽  
Single Mode ◽  
Diode Array ◽  
Laser Diode Array ◽  
Mode Laser ◽  
Single Mode Laser
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