Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/27802
Title: Unique temperature sensing characteristics of CO2-laser-notched long-period fiber gratings
Authors: Wang, Y
Jin, W 
Wang, DN 
Keywords: Fiber Bragg gratings
Long-period fiber gratings
Optical fiber sensors
polarization-dependent loss
Temperature
Issue Date: 2009
Publisher: Elsevier Sci Ltd
Source: Optics and lasers in engineering, 2009, v. 47, no. 10, p. 1044-1048 How to cite?
Journal: Optics and Lasers in Engineering 
Abstract: Long-period fiber gratings (LPFGs) are written by use of a focused CO2 laser beam to notch periodically on the surface of optical fibers. Temperature characteristics of the CO2-laser-notched LPFG are investigated in detailed to develop its sensing applications. It is shown that, for such LPFG, temperature sensitivity of resonant wavelength can be increased by creating deeper notches. The coupling from the fundamental core mode to a cladding mode in the LPFG can be enhanced by increasing the ambient temperature. The polarization-dependent loss (PDL) of the LPFG depends strongly on the ambient temperature. Such unique temperature characteristics can be used to solve the cross-sensitivity problem between the temperature and the tensile strain. So, the LPFG is a promising temperature sensor based on the wavelength modulation, on the intensity modulation and/or on the PDL modulation.
URI: http://hdl.handle.net/10397/27802
DOI: 10.1016/j.optlaseng.2009.03.005
Appears in Collections:Journal/Magazine Article

Access
View full-text via PolyU eLinks SFX Query
Show full item record

SCOPUSTM   
Citations

10
Last Week
0
Last month
0
Citations as of Aug 14, 2017

WEB OF SCIENCETM
Citations

9
Last Week
0
Last month
0
Citations as of Aug 13, 2017

Page view(s)

35
Last Week
4
Last month
Checked on Aug 13, 2017

Google ScholarTM

Check

Altmetric



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.