CUED Publications database

Design of a compact reconfigurable optical interconnection using nematic liquid crystal spatial light modulator

Lu, T and Wang, BW and Robertson, B and Collings, N (2012) Design of a compact reconfigurable optical interconnection using nematic liquid crystal spatial light modulator. Proceedings of SPIE - The International Society for Optical Engineering, 8475. ISSN 0277-786X

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Abstract

The wavelength-division multiplexing (WDM) has been proposed as a promising technology to efficiently use the available bandwidth of a single optical fibre. This can be achieved by transmitting different channels on the optical fibre with each channel modulating a different wavelength. The aim of this paper is to propose a compact design (35 mm×65 mm) of a reconfigurable holographic optical switch in order to access and manipulate 4 channels at a node of a fibre-optic communication network. A vital component of such a switch is a nematic liquid crystal spatial light modulator offering control and flexibility at the channel manipulation stage and providing the ability to redirect light into the desired output fibre. This is achieved by the use of a 2-D analogue phase computer generated hologram (CGH) based on liquid crystal on silicon (LCOS) technology. © 2012 SPIE.

Item Type: Article
Uncontrolled Keywords: Holographic interconnections Nematic liquid crystal Optical phase modulation Spatial light modulator
Subjects: UNSPECIFIED
Divisions: Div B > Photonics
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 12:02
Last Modified: 08 Dec 2014 02:30
DOI: 10.1117/12.926888