Performance Evaluation of Photonic Crystal Fiber for  Sensing Applications

Mahbub, Sheikh Montasir

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dc.contributor.author	Mahbub, Sheikh Montasir
dc.date.accessioned	2025-06-19T09:04:59Z
dc.date.available	2025-06-19T09:04:59Z
dc.date.issued	2024-10-30
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[90] N. M. Saad, E.-S. M. El-Rabaie, and A. A. M. Khalaf, “Photonic Crystal Fiber Sensors, Literature Review, Challenges, and Some Novel Trends.	en_US
dc.identifier.uri	http://hdl.handle.net/123456789/2436
dc.description	Supervised by Prof. Dr. Rakibul Hasan Sagor, Department of Electrical and Electronic Engineering (EEE) Islamic University of Technology (IUT) Board Bazar, Gazipur, Bangladesh. This thesis is submitted in partial fulfillment of the requirements for the degree of Master of Science in Electrical and Electronic Engineering, 2024	en_US
dc.description.abstract	This research focuses on a novel approach of refractive index sensing by utilizing the nonlinear properties of Hollow Core Photonic Crystal Fibers (HC-PCF) which help ultra-short pulses to get compressed as they propagate through the fiber. The researchers have been working on optical fiber based sensors in recent years but their sensing mechanisms rely on quite a few number of parameters. In this work, a solution to this problem has been proposed which works quite efficiently. Hollow Core Photonic Crystal Fiber (HC-PCF) filled with either gas or liquid having different refractive indices is exposed to ultra-short pulses. Due to the variation in refractive indices, the fiber characteristic parameters for each testing case appear to be unique. Hence for each case, the ultra-short pulse that has been sent through the fiber changes its shape uniquely as it traverses through the fiber and the power of the output pulse also appears to be non-identical. By analyzing this change in shape and power, the Material Under Sensing (MUS) can be easily detected. In this work, successful sensing of gaseous materials and also liquid materials have been demonstrated. In terms of gas sensing, as much as 64% compression sensitivity has been achieved alongside 369.07 W of Power Upsurge for CO2 as MUS. Whereas, if the MUS for hollow core photonic crystal fiber is chosen with a higher refractive index within the range of 1.35 – 1.455, as much as 11.6% of compression sensitivity has been achieved with 2313.918W of elevation in Power. This innovative approach holds promise for the detection of a large variety of petrochemical elements, and biological elements with accuracy and reliabilit	en_US
dc.language.iso	en	en_US
dc.publisher	Department of Electrical and Elecrtonics Engineering(EEE), Islamic University of Technology(IUT), Board Bazar, Gazipur-1704, Bangladesh	en_US
dc.subject	Photonics, Nonlinear optics, Pulse Compression, Soliton, Nonlinear Schrodingers Equation	en_US
dc.title	Performance Evaluation of Photonic Crystal Fiber for Sensing Applications	en_US
dc.type	Thesis	en_US