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Self-Stabilized Optoelectronic Oscillator Using Frequency-Shifted Feedback and a Delay Line

Abstract : We report a new scheme of photonic microwave oscillator at telecommunication wavelength. It consists of two monolithic distributed feedback (DFB) laser diodes, whose beat-note is stabilized by means of frequency-shifted optical feedback. The feedback beam is modulated by the delayed beat-note itself, and this permits to get a stable optically carried microwave without the need of any external reference. Dual and single sideband modulation schemes were tested by using an intensity modulator and a frequency shifter, respectively. The single sideband scheme results in a better stability and a 10 dB improvement of the phase noise. A phase noise level of -65 dBc/Hz, detection limited, at 100 Hz from a 12 GHz carrier is obtained.
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https://hal-univ-rennes1.archives-ouvertes.fr/hal-01343400
Contributor : Laurent Jonchère <>
Submitted on : Friday, July 8, 2016 - 1:28:57 PM
Last modification on : Thursday, September 17, 2020 - 3:08:03 PM

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Marc Vallet, Marco Romanelli, Goulc'Hen Loas, Frederic Dijk, Mehdi Alouini. Self-Stabilized Optoelectronic Oscillator Using Frequency-Shifted Feedback and a Delay Line. IEEE Photonics Technology Letters, Institute of Electrical and Electronics Engineers, 2016, 28 (10), pp.1088--1091. ⟨10.1109/LPT.2016.2530826⟩. ⟨hal-01343400⟩

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