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Proceedings Paper

Design of a compact reconfigurable optical interconnect using a nematic liquid crystal spatial light modulator
Author(s): Tianxin Lu; B. W. Wang; B. Robertson; N. Collings
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Paper 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.

Paper Details

Date Published:
PDF: 6 pages
Proc. SPIE 8475, Liquid Crystals XVI, 84750Y; doi: 10.1117/12.926888
Show Author Affiliations
Tianxin Lu, Univ. of Cambridge (United Kingdom)
B. W. Wang, Univ. of Cambridge (United Kingdom)
B. Robertson, Univ. of Cambridge (United Kingdom)
N. Collings, Univ. of Cambridge (United Kingdom)


Published in SPIE Proceedings Vol. 8475:
Liquid Crystals XVI
Iam Choon Khoo, Editor(s)

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