Rough Side-Polished Fiber With Surface Scratches for Sensing Applications

Author

Jing Zhao ; Guolu Yin ; Changrui Liao ; Shen Liu ; Jun He ; Bing Sun ; Guanjun Wang ; Xizheng Xu ; Yiping Wang

Author_Institution

Key Lab. of Optoelectron. Devices & Syst. of Minist. of Educ. & Guangdong Province, Shenzhen Univ., Shenzhen, China

Volume

7

Issue

3

fYear

2015

fDate

Jun-15

Firstpage

1

Lastpage

7

Abstract

We demonstrated a fast mechanical wheel lapping technique to fabricate a convenient and low-cost side-polished fiber (SPF) with a rough, rather than smooth, polished surface. Such a bare SPF can be directly used to develop a promising sensing device, because a Mach-Zehnder interference pattern with high fringe contrast above 10 dB in transmission spectrum was achieved due to the macro scratches on the rough polished surface. Fabrication parameters, e.g., thickness of remaining fiber, polished length, and roughness of abrasive paper, were optimized. The sensor exhibited strain and temperature sensitivities up to -2.00 pm/με and 29.37 pm/°C and can be used to realize simultaneous strain and temperature measurement.

Keywords

Mach-Zehnder interferometers; fibre optic sensors; lapping (machining); optical fibre fabrication; rough surfaces; strain measurement; temperature measurement; Mach-Zehnder interference pattern; fast mechanical wheel lapping technique; rough side-polished fiber; sensing applications; strain measurement; strain sensitivities; surface scratches; temperature measurement; temperature sensitivities; transmission spectrum; Abrasives; Interference; Optical fiber sensors; Optical fibers; Rough surfaces; Surface roughness; Wheels; Mach???Zehnder interference; Optical fiber sensors; side polished fiber; surface scratch; surface scratch. Mach-Zehnder Interference;

fLanguage

English

Journal_Title

Photonics Journal, IEEE

Publisher

ieee

ISSN

1943-0655

Type

jour

DOI

10.1109/JPHOT.2015.2423288

Filename

7086290