| Issue |
J. Eur. Opt. Soc.-Rapid Publ.
Volume 1, 2006
|
|
|---|---|---|
| Article Number | 06022 | |
| Number of page(s) | 6 | |
| DOI | https://doi.org/10.2971/jeos.2006.06022 | |
| Published online | 07 November 2006 | |
Regular papers
Retroreflector array as a tapped delay-line filter for ultra-short optical pulses
1
Institute for Advanced Studies in Basic Sciences(IASBS), P.O.Box 45195-1159, Zanjan, Iran
2
FernUniversit¨at Hagen, Optische Nachrichtechnik, Universit¨atsstr. 27/PRG, 58084 Hagen, Germany
Received:
13
September
2006
A retroreflector array can be used to act as an optical tapped delay-line filter for temporal optical signals. Here, we demonstrate the basic operation and present a theoretical description. Our theory is based on the mathematical formalism for finite impulse response filters. A relationship to the classical Talbot bands experiment is established. By adding a mask to the retroreflector array, one can implement arbitrary filter operations. As a specific example, a differentiation in frequency domain is demonstrated by using a simple binary mask. The proposed devise maybe useful for the optical filtering and shaping of ultra short pulses.
Key words: Optical communications / signal processing / all optical devices / microstructure devices / pulse shaping / micro-optics devices
© The Author(s) 2006. All rights reserved.
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