Low-cost high-speed multichannel fiber-optic correlator

Podoleanu, Adrian G.H. and Harding, Ryan K. and Jackson, David A. (1995) Low-cost high-speed multichannel fiber-optic correlator. Optics Letters, 20 (1). pp. 112-114. ISSN 0146-9592. (doi:https://doi.org/10.1364/OL.20.000112) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

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Official URL
http://www.dx.doi.org/10.1364/OL.20.000112

Abstract

t is shown that, for stationary signals, by use of a microwave switchable delay line the number of channels in a multichannel fiber-optic correlator may be simply expanded. By replacing one optical tree with an electrical tree and by performing the AND operation with double-gate metal-oxide semiconductor field-effect transistors, we demonstrate two methods of reducing the cost of a multichannel architecture without a reduction in speed. Using optical implementation for delays longer than 5 ns and microwave implementation for delays shorter than 5 ns, we obtain 20 points of the correlation function of a 500-MHz signal.

Item Type: Article
Uncontrolled keywords: Correlation methods, Costs, Data acquisition, Delay circuits, Logic gates, Microwaves, MOSFET devices, Optical fibers, Optoelectronic devices, Photodetectors, Semiconducting gallium arsenide, AND operation, Cost reduction, Multichannel fiber optic correlator, Optical trees, Switchable delay line, Time lag delays, Fiber optics
Subjects: Q Science > QC Physics > QC355 Optics
Divisions: Faculties > Sciences > School of Physical Sciences > Applied Optics Group
Depositing User: Giles Tarver
Date Deposited: 27 Jul 2015 10:02 UTC
Last Modified: 28 Jul 2015 08:35 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/49828 (The current URI for this page, for reference purposes)
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