Sampson, D.D. and Dove, W.T. and Jackson, D.A. (1993) High-bandwidth, optical-fiber delay-line multichannel digital correlator. Applied Optics, 32 (21). pp. 3905-3916. ISSN 0740-3224.
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We present an implementation of a multichannel digital correlator based on passive optical fiber delay lines capable of achieving higher real-time bandwidths than current-generation, purely electronic instruments. Theoretical limits are shown to be in the 10(3) channels and tens of gigahertz range. Digital correlation is demonstrated with instruments based on laser diodes and optoelectronic single-bit AND multipliers consisting of eight channels at a 100-MHz sample rate and four channels at 500 MHz. Low-cost optoelectronics operating at 800 nm are shown likely to be suitable for up to 1-GHz sample rates. Applications for which high bandwidth correlation is necessary or advantageous are considered, and future, more compact, and all-optical architectures are suggested.
|Subjects:||Q Science > QC Physics|
|Divisions:||Faculties > Science Technology and Medical Studies > School of Physical Sciences|
|Depositing User:||O.O. Odanye|
|Date Deposited:||25 Jul 2009 01:53|
|Last Modified:||17 Jul 2012 10:07|
|Resource URI:||http://kar.kent.ac.uk/id/eprint/20655 (The current URI for this page, for reference purposes)|
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