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Proceedings Paper

Dynamic holographic wavelength filtering for CWDM applications
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Paper Abstract

This paper describes the theory and experimental results of a dynamic holographic wavelength filtering for use in optical telecommunication Coarse and Dense Wavelength Division Multiplexing (CWDM/DWDM) applications. The enabling component is a ferroelectric liquid crystal (FLC) spatial light modulator (SLM) where dynamic holograms are implemented in real time; as a consequence, tuning of the filter is possible according to the light modulation. The great advantage of this FLC device is a polarization insensitivity operation, allowing low crosstalk and potential low loss in optical communications. Other applications, such as demultiplexers and wavelength routers, have been studied and practical values have been obtained according to central wavelengths recommended in ITU G. 694.1 and G. 694.2. Lab experiments have demonstrated the capability of a phase FLC-SLM to diffract the incident light, according its wavelengths and the hologram patterns, for the use in the former applications.

Paper Details

Date Published: 15 September 2005
PDF: 11 pages
Proc. SPIE 5907, Photonic Devices and Algorithms for Computing VII, 59070L (15 September 2005); doi: 10.1117/12.614341
Show Author Affiliations
Alfredo Martin Minguez, Univ. Politecnica de Madrid (Spain)
Paloma R. Horche, Univ. Politecnica de Madrid (Spain)

Published in SPIE Proceedings Vol. 5907:
Photonic Devices and Algorithms for Computing VII
Khan M. Iftekharuddin; Abdul A. S. Awwal, Editor(s)

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