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Synthesis of a 30-Hz Linewidth Wave Tunable Over 500 GHz

Abstract : We report on a compact source of 30-Hz linewidth, low-phase noise electrical waves with 500-GHz tunability. These waves are generated by photomixing two distributed feedback laser diodes at 1550 nm, which are frequency stabilized on a fibered cavity. We demonstrate a phase noise suppression down to -90 dBc/Hz at 100-kHz carrier offset frequency of the beat note at 2-, 10-, 18-, 40-, and 92-GHz frequencies. The setup also displays a 170-kHz frequency drift of the beat note at 10 GHz in the long term over a continuous 7.5-h locking period.
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https://hal-univ-rennes1.archives-ouvertes.fr/hal-01427869
Contributor : François Bondu <>
Submitted on : Friday, January 6, 2017 - 10:09:14 AM
Last modification on : Monday, June 29, 2020 - 10:44:14 AM

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Ayman Hallal, Steve Bouhier, François Bondu. Synthesis of a 30-Hz Linewidth Wave Tunable Over 500 GHz. IEEE Transactions on Microwave Theory and Techniques, Institute of Electrical and Electronics Engineers, 2017, 65 (4), pp.1367-1371. ⟨10.1109/TMTT.2016.2635639⟩. ⟨hal-01427869⟩

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