Abstract
It 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.
© 1995 Optical Society of America
Full Article | PDF ArticleMore Like This
Adrian Gh. Podoleanu, Ryan K. Harding, and David A. Jackson
Appl. Opt. 36(30) 7523-7530 (1997)
Jean-Pierre Goedgebuer and Richard Ferrière
Opt. Lett. 20(11) 1343-1345 (1995)
David D. Sampson, William T. Dove, and David A. Jackson
Appl. Opt. 32(21) 3905-3916 (1993)