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Octave spanning supercontinuum generation in a few mode fiber

Awang, Noor Azura (2018) Octave spanning supercontinuum generation in a few mode fiber. In: Optical Fiber Laser Technology. Penerbit UTHM. ISBN 978-967-2216-63-6


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Supercontinuum (SC) from optical fibres [1-3] has recently gained significant interest in the development of new broadband optical sources for applications requiring a tunable, bright source operating in the pico- to nano-second range for communications. Typically, ultra-short pulses are generated using bulk laser systems such as Titanium-Sapphire (Ti-Sapphire) lasers, but require critical optical alignment and many other sophisticated optical techniques, thus making these systems complicated, expensive and not suitable for laboratories with a limited budget. An alternative approach is to generate these short pulses using rare-earth doped fibres, which would allow for the development of cheap, compact, stable and easy to maintain sources for SC generation [4, 5]. Such a system will also find applications in the areas of optical coherence tomography [6], spectroscopy [7] and frequency metrology [8]. The process of SC generation is normally done in a non-linear fibre, whereby SC is a complex nonlinear phenomenon that is characterized by the dramatic spectral broadening of intense light pulses passing through a nonlinear medium. Recently, more attention has been paid to nonlinear fiber with longer infrared transmission windows such as Highly Nonlinear Fiber (HNLF), Photonic Crystal Fiber (PCF) and Chalcogenide Fiber. Therefore, the Few Mode Fiber (FMF) is the alternative fiber for infrared transmission window. This fiber possess a high refractive index and can support high optical power than Single Mode Fiber (SMF). In this book, the feasibility of FMF transmission systems by studying the supercontinuum generation in two modes is presented. In most reported experiments, SC generation is observed by higher-order mode excitation in other nonlinear fiber. However, broad tunable soliton and associated dispersive wave sources by two modes in FMF is also investigated.

Item Type: Book Section
Subjects: T Technology > T Technology (General)
Depositing User: Mr Abdul Rahim Mat Radzuan
Date Deposited: 31 Oct 2019 02:41
Last Modified: 31 Oct 2019 02:41
URI: http://eprints.uthm.edu.my/id/eprint/11846
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