Microstructured optical fiber design

Photonic crystal fibers (PCFs) have been studied extensively in recent years. An important use of PCF is polarization maintaining. The previous polarization maintaining fibers, also known as highly birefringent fibers are mainly based on Photonic Band Gap (PBG) Guiding PCFs and Index-Guiding PCFs...

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Bibliographic Details
Main Author: Bai, Yongchao
Other Authors: Shum Ping
Format: Final Year Project
Language:English
Published: 2009
Subjects:
Online Access:http://hdl.handle.net/10356/16785
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Institution: Nanyang Technological University
Language: English
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Summary:Photonic crystal fibers (PCFs) have been studied extensively in recent years. An important use of PCF is polarization maintaining. The previous polarization maintaining fibers, also known as highly birefringent fibers are mainly based on Photonic Band Gap (PBG) Guiding PCFs and Index-Guiding PCFs. Recently, a new class of PCF – Hybrid PCF, which guiding light by both PBG Guiding and Index-Guiding mechanisms, was introduced. Due to its intrinsically asymmetric structure, it has great potential for designing a highly birefringent fiber. This project aims to design a highly birefringent Hybrid PCF for polarization maintaining use. The influences on photonic band gap properties and the effects on birefringence of structural variations in Hybrid PCF are investigated. Different methods are incorporated together to design a highly birefringent fiber based on Hybrid PCF structure. Finally, a birefringence of 3.34 10-2 of at wavelength of 1.55μm is achieved.