Analysis On Different Length Of Sensor Area Towards The Performance Of Fiber Optic Sensor For Refractive Index Measurement

Azme, Amirul Fikri (2018) Analysis On Different Length Of Sensor Area Towards The Performance Of Fiber Optic Sensor For Refractive Index Measurement. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

The massive increase in electronic communication during the last decades has spurred the development of ways to transport and process large quantities of data. There are various types of methods used based on electrical detector for liquid concentration measurement. Optical fiber sensor has received a great attention in recent years due to their specialty on sensitivity, size and technology which capable to measure various space area and conditions. In this project, Single mode-Multimode-Single mode (SMS) and Multimode-Single mode-Multimode (MSM) were tested in five different lengths of sensing region which are 4 cm, 6 cm, 8 cm, 10 cm and 12 cm at 1310 nm and 1550 nm. The etched sensor region tested in water (1.333 RIU), 1 mol of sucrose (1.386 RIU) and oil (1.464 RIU) with different values of refractive index. The change of the refractive index affects the resonant wavelength. For SMS, it observed that the longest sensor demonstrate the best sensitivity of 11.751 nm/RIU at 12 cm length for 1310 nm. Meanwhile, for MSM fiber the best sensitivity is -11.154 nm/RIU which is for 12 cm length sensor region and the best wavelength for optical light source is 1310 nm.

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