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Proceedings Paper

Switched three-dimensional photonic delay line using directly modulated semiconductor lasers for microwave radar processing
Author(s): Nicholas Madamopoulos; Nabeel A. Riza
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Paper Abstract

A 3-bit binary photonic delay line is demonstrated at 1 GHz using a directly modulated semiconductor laser and remote interconnection fiber-optics. Three types of freespace delay bit geometries are tested for 5.686 ns, 1.667 ns, and 8.83 ps delay bits. This photonic delay line uses ferroelectric liquid crystal optical on/off devices for optical path switching and active polarization noise filtering. 3D imaging optics and antireflection coated optics are successfully used to minimize photonic delay line insertion losses and interchannel crosstalk. The 3-bit system is fully characterized for measured and designed performance.

Paper Details

Date Published: 5 November 1996
PDF: 10 pages
Proc. SPIE 2845, Radar Processing, Technology, and Applications, (5 November 1996); doi: 10.1117/12.257231
Show Author Affiliations
Nicholas Madamopoulos, CREOL/Univ. of Central Florida (United States)
Nabeel A. Riza, CREOL/Univ. of Central Florida (United States)


Published in SPIE Proceedings Vol. 2845:
Radar Processing, Technology, and Applications
William J. Miceli, Editor(s)

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