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Generation of quaternary‐amplitude microwave signals by using a new optical heterodyne technique
Author(s) -
Villena A. T. P.,
Arismar Cerqueira S.,
Abbade Marcelo L.F.,
HernandezFigueroa H. E.,
Fragnito Hugo L.
Publication year - 2012
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.27199
Subject(s) - ask price , microwave , heterodyne (poetry) , amplitude , amplitude shift keying , heterodyne detection , optics , telecommunications , computer science , physics , acoustics , bit error rate , phase shift keying , laser , channel (broadcasting) , economy , economics
We propose and experimentally investigate a new technique, based on optical heterodyne generation, which converts two optical binary amplitude‐shift keyed (2‐ASK) into a single microwave quaternary ASK (4‐ASK) one. Results show that 4‐ASK signals are properly generated even when the 2‐ASK signals are propagated through 40 km optical links from a geographically distributed optical network under real conditions of temperature, pressure, humidity, and wind. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:2738–2743, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27199