A fiber Bragg grating is a small structure that measures few millimeters in length and can be photo etched in the single mode fiber core. Fiber Bragg Grating sensors have been in used for many years in various demanding harsh environmental applications. Fiber Bragg Grating sensors are used as an alternative to traditional mechanical and electrical sensors. FBG sensors are widely used and deployed optical sensors. FBG sensors reflects the wavelength of light that shifts with response to the change or variation in the temperature. FBG sensors are constructed with the use of holographic interference exposing a short length of photosensitive fiber to a regular distribution of light intensity. This periodic pattern generates a Bragg grating acting as a filter due to an interference reflection of some of the incident optical field. The reflecting wavelength of the FBG relies on the grating characteristics such as modulation and the period and is impacted by the parameters such as temp...