Design and Performance Analysis of Fiber Bragg Grating Temperature Sensor for Industrial Processes Sensing Applications

The Fiber Bragg Grating (FBG) sensor has become a widespread sensing device because of its small size, passive design, immunity to electromagnetic interference, and direct ability to measure physical properties like temperature and strain. Recently, femtosecond infrared laser processing and regeneration techniques have resulted in the development of stable high-temperature gratings, which are a powerful tool in smart factories, an aspect of the fourth Industrial Revolution (4IR), and show promise for application in harsh environments like high pressure, high temperature, or ionizing radiation. The development of stable high-temperature gratings that can withstand harsh environmental factors like high temperatures, pressures, and ionizing radiation exposure is especially important in light of the Fourth Industrial Revolution (4IR), where smart factories require reliable, distributed, and real-time sensing systems. FBG sensors are essential instruments for developing Industrial process applications because of their capacity to function dependably under challenging conditions and their versatility for incorporation into industrial processes. The results of the FBG sensor show a high sensitivity of 0.01429 nm°C-1 , a Figure of Merit (FOM) of 1.632 x 10-12°C-1 , and a Full Width Half Maxima (FWHM) of 8.7525 nm. The sensor's determined Quality factor (Q) was 177.8.