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Recirculating Frequency Shifter-Based Hybrid Electro-Optic Probing System with Ultra-Wide Bandwidth
Benoît J. GOUHIER Ka-Lun LEE Ampalavanapillai NIRMALATHAS Christina LIM Efstratios SKAFIDAS
IEICE TRANSACTIONS on Electronics
Publication Date: 2015/08/01
Online ISSN: 1745-1353
Type of Manuscript: Special Section PAPER (Special Section on Microwave Photonics)
Category: MWP Sensing Technique
electro-optic, terahertz, THz, microwave photonics, recirculating frequency shifter,
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In this paper, we present a new electro-optic (EO) probing system based on heterodyne detection. The use of a recirculating frequency shifter allows to expand the bandwidth of the system far beyond what is attainable with a conventional heterodyne EO set-up. The performance for the frequencies up to 50GHz is analysed to forecast the viability of the system up to the THz range.