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Optical Engineering

Experimental demonstration of filtering and multiplexing of microwave signals using a multimode laser diode and chromatic fiber-dispersion parameter
Author(s): Ignacio E. Zaldivar-Huerta; Jorge Rodriguez-Asomoza; G. Martinez-Messner
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Paper Abstract

The filtering and multiplexing of microwave signals in the frequency range of 0.01 to 4 GHz is experimentally demonstrated. Filtering is obtained by the spectral characteristics of a 1.5-μm multimode laser diode (MLD) and the chromatic fiber-dispersion parameter. Multiplexing is based on the use of appropriated optical delays generated by the use of a Michelson interferometer that allows a very precise adjustment of the free spectral range (FSR) of the MLD used. Experimental results are validated by means of numerical simulations. To show potential applications in the area of optical communications, a filtered microwave signal is used as a microwave electric-carrier transmitting TV-video signal on a long-distance optical telecommunication system. This is achieved by using an external modulation technique over 28.3 km of a single-mode standard fiber, and using an MLD diode emitting at an optical wavelength around 1.5 μm.

Paper Details

Date Published: 1 February 2008
PDF: 6 pages
Opt. Eng. 47(2) 025002 doi: 10.1117/1.2844725
Published in: Optical Engineering Volume 47, Issue 2
Show Author Affiliations
Ignacio E. Zaldivar-Huerta, Instituto Nacional de Astrofísica, Óptica y Electrónica (Mexico)
Jorge Rodriguez-Asomoza, Univ. de las Américas Puebla (Mexico)
G. Martinez-Messner, Instituto Nacional de Astrofísica, Óptica y Electrónica (Mexico)


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