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Echantillonnage optique à base sur l'interféromètre Mach-Zehnder avec amplificateurs optiques à semi-conducteurs (SOA-MZI) pour applications analogiques

Abstract : Photonic sampling is a process employed in various state-of-the-art systems, since it permits a unique combinaison of advantages such as the low temporal jitter, the low-loss, high bandwidth and immunity to electromagnetic interference (EMI). This thesis aims at investigating and showing the feasibility of using the SOA-MZI module, a purely photonic device, as a photonic sampler in place of other electro-optics solutions, circumventing the need for additionnal slow and costly electro-optic conversions. The switching and modulation architecture are possible with the SOA-MZI photonic sampler. The major advantage of the modulation architecture is that it enables the use of very high sampling rates. Employing the modulation architecture, a post-distorsion linearzation method is formulated and validated. Experimentally, significant total harmonic distortion (THD)improvement between 7 and 23 dB is observed for sinusoidal signals to be sampled at frequences between 0.25 and 2 Ghz. The SOA-MZI photonic sampler, employed as a photonic up-converter, is theoretically examined by developing a small-signal analysis model, and experimentally validated using switching and modulation architecture in terms of conversion gain (CG). A CG equal to 16 dB is achieved for the 1 to 9 Ghz conversion, while a CG equal to 9 dB for the 1 TO 39 gHZ conversion. A bit rate up to 1 Gbps is reached for up-converted data of complex modulation formats.
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https://theses.hal.science/tel-03789911
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Submitted on : Tuesday, September 27, 2022 - 5:34:14 PM
Last modification on : Thursday, September 29, 2022 - 3:05:35 AM

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  • HAL Id : tel-03789911, version 1

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Dimitrios Kastritsis. Echantillonnage optique à base sur l'interféromètre Mach-Zehnder avec amplificateurs optiques à semi-conducteurs (SOA-MZI) pour applications analogiques. Electronique. École Nationale d'Ingénieurs de Brest; Université Démocrite de Thrace, 2022. Français. ⟨NNT : 2022ENIB0012⟩. ⟨tel-03789911⟩

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