Fabrication Highly Sensitive Optical Sensing Devices Based
on D- Shaped Fibre
M.H. Mezher ١,٢, a), Baraa M. Mhmaimeed ٣, b), Shahad H. Kadhum ٤, c), Ghufran A.
Ali ٣, d), Mustafa Abd AL-Aress Jabur ٥, e), A. M. Ghandour ٣, f) and Seyed Sadra.
kashef ٦, g)
١ Computer Technical Engineering Department, College of Technical Engineering, The Islamic University, Najaf,
Iraq.
٢ Computer Technical Engineering Department, College of Technical Engineering, The Islamic University,
Babylon, Iraq.
٣ Department of Computer and Communication Engineering Islamic University of Lebanon Wardanieh, Lebanon.
٤ Department of Physics, College of Education for Pure Science, University of Babylon, Babylon, Iraq.
٥ Department of Computer Technical Engineering, Imam Kadhum College, Baghdad, Iraq.
٦ The department of Electrical and computer engineering, Urmia University, Urmia, Iran.
a) Corresponding author: mezher.hamed@iunajaf.edu.iq
b) baraamajeed٣@gmail.com
c) Pure.Shahad.ali@uobabylon.edu.iq
d) ghofran.alkhaldy٩٣@gmail.com
e) mustafa.abd@alkadhum-col.edu.iq
f) ahmad.ghandour@iul.edu.lb
g) s.kashef@urmia.ac.ir
Abstract. The optical sensing devices has been fabrication based on D-Shaped Fiber coated with Graphene Oxide (GO).
The single mode Step Index fiber (SMF-٢٨) used resemble (D-Shaped Fiber) to generate an evanescent field on polishing
area used as optical sensing region with (٢mm٢) area. This technique applying few layers (~٢٢-layers) of Graphene
Oxide (GO) with a thickness of ~ ٠.٠٩~μm used to coat D-shaped fiber. The performance D-Shaped Fiber have been test
by applied different elements on polished region (without GO- coat and with GO-coat) that show increase in transmitted
power by ~٣.٥dBm and ~٢١.٥dBm respectively. The COMSOL Multiphasic simulation using to perform the effect of
phishing on the electric field of sensing region. These features can make D-Shaped-Fiber can be used in many
applications such as biomedical sensor, humidity sensor, temperature sensor and biochemical sensor.
Keywords: D-Shaped Fiber, Graphene Oxide (GO), Sensor, Single mode fiber, comsol.
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