Tunable holographic components in WDM optical networks |
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Authors: | Alfredo Martín Minguez and Paloma R Horche |
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Institution: | 1.Dpto. de Tecnología Fotónica (ETSI Telecomunicación),Universidad Politécnica de Madrid,Madrid,Spain |
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Abstract: | This paper describes the applications of a multipurpose holographic device in optical networks with Coarse and Dense Wavelength
Division Multiplexing (CWDM/ DWDM) technologies. In its basic structure, it can operate as a tunable wavelength filter, wavelength
multiplexer or λ router. By using a more complex structure, the device works as OADM (Optical Add Drop Multiplexer) or OS (Optical Switch).
Some simulations of the basic devices, from the optical transmission point of view, are made to match the transmission parameters
for the application in optical networks. Performance parameters of the device, like switching time, losses, cross-talk or
polarization insensitivity are analyzed and compared with other multiplexing or switching technologies. To complete the review
of these components, a study of computer generated holograms (CGH) design is carried out. The results are used in the design
of holographic devices to perform different applications: in Metro networks, where a design of a holographic device with wavelength
conversion and routing is analyzed, or, in Access Networks like a tunable filter or demultiplexer in Fiber to the Home/Business
(FTTH/FTTB) topologies. |
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Keywords: | |
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