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A comparison of the efficiency and crosstalk of quaternary and binary phase-only holograms based on ferroelectric liquid crystals (FLC)

Authors :
W. A. Crossland
K. L. Tan
R. J. Mears
Source :
Ferroelectrics. 213:233-240
Publication Year :
1998
Publisher :
Informa UK Limited, 1998.

Abstract

The benefits of employing a quaternary phase-only hologram, programmed onto a silicon backplane Spatial Light Modulator (SLM) are evaluated with respect to insertion loss and crosstalk isolation between two single-mode fibre ports. It is shown that insertion loss for a binary phase hologram with current FLCs, is comparable to that of quaternary phase holograms utilising deformed-helix (DH) FLCs. Its worst-case crosstalk performance is no worse than that of a quaternary phase hologram for a typical regular fibre array design.

Details

ISSN :
15635112 and 00150193
Volume :
213
Database :
OpenAIRE
Journal :
Ferroelectrics
Accession number :
edsair.doi...........3bfc6bc372b20d362832f4f555a56783
Full Text :
https://doi.org/10.1080/00150199808016489