Design and characterize of 4 channel FTTH demultiplexer using cascaded wavelength selective coupler -with application proposal highlights

Research output: Contribution to journalArticle

Abstract

The purpose of this paper is to design and characterize the Mux/Demultiplexer (Mux/Demux) which used the concept of coupled mode theory. The design is based on cascading the wavelength selective coupler (WSC) device utilizing commercial specification. The device is designed on silica substrate with compliance of fiber-to-the-home (FTTH) wavelengths such as wavelength 1310 nm (upstream data/voice), 1480 nm (downstream data/voice), 1550 nm (video) and 1625 nm (testing). The designed WSC coupler is used as a router for specific wavelength in order to detect any optical line failure in FTTH access network application in which the optical time domain reflectometer (OTDR) launched wavelength (1625 nm) is used as troubleshooting signal. The performance of the devices was modeled using the beam propagation method (BPM-Cad) product from the Optiwave Inc. This paper also highlights the parameter studies and the effect to the design specification and performance. We analyze the following parameters such as: wavelength, separation between waveguides (a), waveguide width (d), number of mesh, TE and TM polarization, and refractive indices for substrate (n2) and waveguide (n1). Finally, we proposed two applications of WSC and wavelength Demux in real FTTH access network to increase the system efficiency, survivability and monitoring.

Original languageEnglish
Pages (from-to)4510-4525
Number of pages16
JournalAustralian Journal of Basic and Applied Sciences
Volume3
Issue number4
Publication statusPublished - Oct 2009

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Wavelength
Waveguides
Specifications
Beam propagation method
Fiber to the x
Reflectometers
Substrates
Routers
Refractive index
Silica
Polarization
Monitoring
Testing

Keywords

  • Cascaded
  • Demultiplexer
  • FTTH access network
  • Waveguide based device
  • Wavelength selective coupler

ASJC Scopus subject areas

  • General

Cite this

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title = "Design and characterize of 4 channel FTTH demultiplexer using cascaded wavelength selective coupler -with application proposal highlights",
abstract = "The purpose of this paper is to design and characterize the Mux/Demultiplexer (Mux/Demux) which used the concept of coupled mode theory. The design is based on cascading the wavelength selective coupler (WSC) device utilizing commercial specification. The device is designed on silica substrate with compliance of fiber-to-the-home (FTTH) wavelengths such as wavelength 1310 nm (upstream data/voice), 1480 nm (downstream data/voice), 1550 nm (video) and 1625 nm (testing). The designed WSC coupler is used as a router for specific wavelength in order to detect any optical line failure in FTTH access network application in which the optical time domain reflectometer (OTDR) launched wavelength (1625 nm) is used as troubleshooting signal. The performance of the devices was modeled using the beam propagation method (BPM-Cad) product from the Optiwave Inc. This paper also highlights the parameter studies and the effect to the design specification and performance. We analyze the following parameters such as: wavelength, separation between waveguides (a), waveguide width (d), number of mesh, TE and TM polarization, and refractive indices for substrate (n2) and waveguide (n1). Finally, we proposed two applications of WSC and wavelength Demux in real FTTH access network to increase the system efficiency, survivability and monitoring.",
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AB - The purpose of this paper is to design and characterize the Mux/Demultiplexer (Mux/Demux) which used the concept of coupled mode theory. The design is based on cascading the wavelength selective coupler (WSC) device utilizing commercial specification. The device is designed on silica substrate with compliance of fiber-to-the-home (FTTH) wavelengths such as wavelength 1310 nm (upstream data/voice), 1480 nm (downstream data/voice), 1550 nm (video) and 1625 nm (testing). The designed WSC coupler is used as a router for specific wavelength in order to detect any optical line failure in FTTH access network application in which the optical time domain reflectometer (OTDR) launched wavelength (1625 nm) is used as troubleshooting signal. The performance of the devices was modeled using the beam propagation method (BPM-Cad) product from the Optiwave Inc. This paper also highlights the parameter studies and the effect to the design specification and performance. We analyze the following parameters such as: wavelength, separation between waveguides (a), waveguide width (d), number of mesh, TE and TM polarization, and refractive indices for substrate (n2) and waveguide (n1). Finally, we proposed two applications of WSC and wavelength Demux in real FTTH access network to increase the system efficiency, survivability and monitoring.

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