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Proceedings Paper

A tunable dual-frequency optoelectronic oscillator based on stimulated Brillouin scattering
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Paper Abstract

A tunable dual-frequency optoelectronic oscillator (OEO) based on a tunable dual-passband microwave photonic filter (DPMPF) is proposed and demonstrated. The DPMPF is based on phase-to-intensity modulation (PM-IM) conversion and stimulated Brillouin scattering (SBS). Two pump lightwaves are generated through carrier-suppression doublesideband modulation (CS-DSB) in a Mach-Zehnder modulator (MZM) to generate two SBS gain regions in a single mode fiber. Two SBS gain regions act on the phase modulation signal to achieve a dual-passband filter. Through simply varying the frequency of the radio frequency (RF) signal used for CS-DSB, the two central frequencies of the OEO can be tuned with the frequency interval kept constant. In addition, adjusting the frequency of tunable optical source launched to the MZM, the frequency interval of the OEO can be tuned. In the experiment, the dual-frequency OEOs with frequency intervals of 0.2 GHz and 1.2 GHz are achieved, respectively. The frequency tuning range from 3 to 8 GHz is demonstrated. The dual-frequency OEO with the frequency interval tuned is also achieved.

Paper Details

Date Published: 20 November 2019
PDF: 6 pages
Proc. SPIE 11192, Real-time Photonic Measurements, Data Management, and Processing IV, 1119214 (20 November 2019); doi: 10.1117/12.2538656
Show Author Affiliations
Enming Xu, Nanjing Univ. of Posts and Telecommunications (China)
Qihang Xu, Nanjing Univ. of Posts and Telecommunications (China)
Fan Li, Nanjing Univ. of Posts and Telecommunications (China)
Cui Qin, Nanjing Institute of Technology (China)
Peili Li, Nanjing Univ. of Posts and Telecommunications (China)
Zuxing Zhang, Nanjing Univ. of Posts and Telecommunications (China)


Published in SPIE Proceedings Vol. 11192:
Real-time Photonic Measurements, Data Management, and Processing IV
Ming Li; Bahram Jalali; Mohammad Hossein Asghari, Editor(s)

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