Paper Info
Title
Investigating the Strain, Temperature and Humidity Sensitivity of a Multimode Graded-Index Perfluorinated Polymer Optical Fiber with Bragg Grating.
Abstract
In this work we investigate the strain, temperature and humidity sensitivity of a Fiber Bragg Grating (FBG) inscribed in a near infrared low-loss multimode perfluorinated polymer optical fiber based on cyclic transparent optical polymer (CYTOP). For this purpose, FBGs were inscribed into the multimode CYTOP fiber with a core diameter of 50 mu by using a krypton fluoride (KrF) excimer laser and the phase mask method. The evolution of the reflection spectrum of the FBG detected with a multimode interrogation technique revealed a single reflection peak with a full width at half maximum (FHWM) bandwidth of about 9 nm. Furthermore, the spectral envelope of the single FBG reflection peak can be optimized depending on the KrF excimer laser irradiation time. A linear shift of the Bragg wavelength due to applied strain, temperature and humidity was measured. Furthermore, depending on irradiation time of the KrF excimer laser, both the failure strain and strain sensitivity of the multimode fiber with FBG can be controlled. The inherent low light attenuation in the near infrared wavelength range (telecommunication window) of the multimode CYTOP fiber and the single FBG reflection peak when applying the multimode interrogation set-up will allow for new applications in the area of telecommunication and optical sensing.
Year
DOI
Venue
2018
10.3390/s18051436
SENSORS
Keywords
Field
DocType
perfluorinated polymer optical fiber,Fiber Bragg gratings,temperature,strain,humidity sensing
Optical fiber,Analytical chemistry,Fiber Bragg grating,Fiber,Near-infrared spectroscopy,Excimer laser,Multi-mode optical fiber,Engineering,Full width at half maximum,Optoelectronics,Wavelength
Journal
Volume
Issue
Citations 
18
5.0
0
PageRank 
References 
Authors
0.34
2
3
Name
Order
Citations
PageRank
Yulong Zheng172.04
kort bremer283.44
bernhard roth395.27