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Modeling of normalized frequency gradient for fused single mode fiber of coupling ratio

Although the coupling ratio research has shown good progress in experimental and theoretical calculation, coupled waveguide fibers still have power reflection and power losses due to the effects of fabrication. Two fibers are coupled and heated by injecting hydrogen flow at a pressure of 1bar with t...

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Main Authors:	Saktioto, Toto, Ali, Jalil, Zainal, Jasman, Fadhali, Mohamed
Format:	Article
Language:	English
Published:	2008
Subjects:	QC Physics
Online Access:	http://eprints.utm.my/id/eprint/5744/1/1.full_paper_saktioto_2007_normalized_frequency.doc http://eprints.utm.my/id/eprint/5744/
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spelling	my.utm.57442011-05-10T06:16:04Z http://eprints.utm.my/id/eprint/5744/ Modeling of normalized frequency gradient for fused single mode fiber of coupling ratio Saktioto, Toto Ali, Jalil Zainal, Jasman Fadhali, Mohamed QC Physics Although the coupling ratio research has shown good progress in experimental and theoretical calculation, coupled waveguide fibers still have power reflection and power losses due to the effects of fabrication. Two fibers are coupled and heated by injecting hydrogen flow at a pressure of 1bar with the torch flame in the range of 800-1350C. During the fusion process some optical parameters are found to vary over a wide range. A coupling coefficient is estimated from experimental result of coupling ratio distribution ranging from 1% to 75%, and a refractive index is calculated from the empirical calculation. It is found that the change of the fiber geometry affects normalized frequency even for single mode fiber. Coupling ratio as the function of coupling coefficient and separation of fiber axis changes the normalized frequency at the coupling region. Normalized frequency is derived from the radius, wavelength and refractive index parameters. At the left and right side of the coupling region, some parameters are decreased and increased respectively. At the center of the coupling region, some optical parameters are assumed to remain constant. The normalized frequency is integrated over the pulling length in the range of 7500-9500Î¼m for 1-D where radial and angle directions are ignored. Simulation result shows that the normalized frequency is significantly affected by the radius compared to the wavelength and refractive index of the core and cladding. This simulation has a dependence of power phenomena in transmission and reflection for communication and industrial application of coupled fibers. 2008-12 Article PeerReviewed application/msword en http://eprints.utm.my/id/eprint/5744/1/1.full_paper_saktioto_2007_normalized_frequency.doc Saktioto, Toto and Ali, Jalil and Zainal, Jasman and Fadhali, Mohamed (2008) Modeling of normalized frequency gradient for fused single mode fiber of coupling ratio. Australian Journal of Basics and Applied Sciences - "Modeling of Normalized Frequency Gradient for Fused Single Mode Fiber of Coupling Ratio" . pp. 1-5. (Submitted)
institution	Universiti Teknologi Malaysia
building	UTM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Teknologi Malaysia
content_source	UTM Institutional Repository
url_provider	http://eprints.utm.my/
language	English
topic	QC Physics
spellingShingle	QC Physics Saktioto, Toto Ali, Jalil Zainal, Jasman Fadhali, Mohamed Modeling of normalized frequency gradient for fused single mode fiber of coupling ratio
description	Although the coupling ratio research has shown good progress in experimental and theoretical calculation, coupled waveguide fibers still have power reflection and power losses due to the effects of fabrication. Two fibers are coupled and heated by injecting hydrogen flow at a pressure of 1bar with the torch flame in the range of 800-1350C. During the fusion process some optical parameters are found to vary over a wide range. A coupling coefficient is estimated from experimental result of coupling ratio distribution ranging from 1% to 75%, and a refractive index is calculated from the empirical calculation. It is found that the change of the fiber geometry affects normalized frequency even for single mode fiber. Coupling ratio as the function of coupling coefficient and separation of fiber axis changes the normalized frequency at the coupling region. Normalized frequency is derived from the radius, wavelength and refractive index parameters. At the left and right side of the coupling region, some parameters are decreased and increased respectively. At the center of the coupling region, some optical parameters are assumed to remain constant. The normalized frequency is integrated over the pulling length in the range of 7500-9500Î¼m for 1-D where radial and angle directions are ignored. Simulation result shows that the normalized frequency is significantly affected by the radius compared to the wavelength and refractive index of the core and cladding. This simulation has a dependence of power phenomena in transmission and reflection for communication and industrial application of coupled fibers.
format	Article
author	Saktioto, Toto Ali, Jalil Zainal, Jasman Fadhali, Mohamed
author_facet	Saktioto, Toto Ali, Jalil Zainal, Jasman Fadhali, Mohamed
author_sort	Saktioto, Toto
title	Modeling of normalized frequency gradient for fused single mode fiber of coupling ratio
title_short	Modeling of normalized frequency gradient for fused single mode fiber of coupling ratio
title_full	Modeling of normalized frequency gradient for fused single mode fiber of coupling ratio
title_fullStr	Modeling of normalized frequency gradient for fused single mode fiber of coupling ratio
title_full_unstemmed	Modeling of normalized frequency gradient for fused single mode fiber of coupling ratio
title_sort	modeling of normalized frequency gradient for fused single mode fiber of coupling ratio
publishDate	2008
url	http://eprints.utm.my/id/eprint/5744/1/1.full_paper_saktioto_2007_normalized_frequency.doc http://eprints.utm.my/id/eprint/5744/
_version_	1643644390590119936
score	13.211869

Modeling of normalized frequency gradient for fused single mode fiber of coupling ratio

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