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Poster De Conférence Année : 2019

Microwave-optical fiber lasers stabilized by frequency-shifted feedback

Résumé

Dual-frequency fiber lasers (DFFL) are shown to provide high purity beat notes for microwave signal generation and distribution. We study the stabilization of the beat from DFB DFFLs by using optical frequency-shifted feedback loop containing an electro-optic modulator (EOM). As a proof-of-principle of the method efficiency, a stabilized beat note with a phase noise level of -104 dBc/Hz at 1 kHz from a 1 GHz carrier, and of -90 dBc/Hz at 1 kHz from a 10 GHz carrier, is demonstrated when the EOM is driven by a synthesizer. Furthermore, the scheme is extended to a self-referenced scheme: a hybrid opto-electronic oscillator is obtained when the delayed DFFL beat note itself drives the EOM. Low-frequency phase noise is reduced by about 20 dB. Applications are discussed.
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Dates et versions

hal-02470792 , version 1 (07-02-2020)

Identifiants

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Marie Guionie, Aurélien Thorette, Marco Romanelli, Anthony Carré, Goulc'Hen Loas, et al.. Microwave-optical fiber lasers stabilized by frequency-shifted feedback. 2019 IEEE International Topical Meeting on Microwave Photonics (MWP 2019), Oct 2019, Ottawa, Canada. IEEE, IEEE Xplore Digital Library, pp.1-4, 2019, 2019 International Topical Meeting on Microwave Photonics (MWP). ⟨10.1109/MWP.2019.8892036⟩. ⟨hal-02470792⟩
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