Frequency shifting of microwave signals by use of a general temporal self-imaging (Talbot) effect in optical fibers.
A simple and practical microwave frequency-shifting technique based on a general temporal self-imaging (GTSI) effect in optical fiber is proposed, formulated, and experimentally demonstrated. The proposed technique can be applied to an arbitrary periodic microwave signal (e.g., a microwave tone) and provides unparalleled design flexibility to increase the frequency of the input microwave signal up to the desired value (limited only by the photodetector's bandwidth). For instance, we demonstrate frequency upshifting of microwave tones from approximately 10 to approximately 50 GHz and from approximately 40 to approximately 354 GHz. These results also represent what is to the authors' knowledge the first experimental observation of GTSI phenomena.
Azaña
José
J
Institut National de la Recherche Scientifique-Energie, Matériaux et Télécommunications, 800 de la Gauchetière Ouest, Suite 6900, Montreal, Quebec H5A 1K6, Canada. azana@inrs-emt.uquebec.ca
Berger
Naum K
NK
Levit
Boris
B
Smulakovsky
Vladimir
V
Fischer
Baruch
B