DocumentCode :
15660
Title :
First Demonstration of a 2- 
OTDR and Its Use in Photonic Bandgap 
Sensing Fiber
Author :
Belal, Mohammad ; Petrovich, Marco ; Wheeler, Natalie ; Wooler, John ; Masoudi, Ali ; Poletti, Francesco ; Alam, Shaiful ; Richardson, David ; Newson, Trevor
Author_Institution :
Optoelectron. Res. Centre, Univ. of Southampton, Southampton, UK
Volume :
26
Issue :
9
fYear :
2014
fDate :
1-May-14
Firstpage :
889
Lastpage :
892
Abstract :
We report the first demonstration of an optical time domain reflectometer (OTDR) designed for the emerging wavelength band of 2 μm. A dynamic range of 30 dB with a spatial resolution of 5 m is achieved. The characterization of three different fibers using the 2-μm OTDR is described. Two solid core fibers (SMF with a cutoff at 1.7 μm and SMF 28e) have been probed to ascertain their transmission loss values, while measurements in a 19-cell hollow core photonic bandgap fiber show the presence of carbon dioxide gas in the fiber core and allow the contribution that it makes to the fiber loss to be quantified.
Keywords :
carbon compounds; fibre optic sensors; gas sensors; optical design techniques; optical fibre losses; optical fibre testing; optical time-domain reflectometry; photonic band gap; 19-cell hollow core photonic bandgap fiber; CO2; OTDR; SMF; carbon dioxide gas; fiber loss; optical time domain reflectometer; photonic bandgap CO2 sensing fiber; solid core fibers; spatial resolution; transmission loss; wavelength 1.7 mum; wavelength 2 mum; wavelength band; Loss measurement; Optical fiber amplifiers; Optical fiber couplers; Optical fiber sensors; Optical pulses; Fiber optics; optical fiber sensors; optical fiber testing; optoelectronic and photonic sensors;
fLanguage :
English
Journal_Title :
Photonics Technology Letters, IEEE
Publisher :
ieee
ISSN :
1041-1135
Type :
jour
DOI :
10.1109/LPT.2014.2309496
Filename :
6754153
Link To Document :
