Frequency multiplying optoelectronic oscillator based on nonlinearly-coupled double loops | Zendy

Wei Xu | Zendy; Tao Jin | Zendy; Hao Chi | Zendy

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Frequency multiplying optoelectronic oscillator based on nonlinearly-coupled double loops

Author(s) -

Wei Xu,

Tao Jin,

Hao Chi

Publication year - 2013

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.21.032516

Subject(s) - dbc , phase noise , offset (computer science) , physics , optics , oscillation (cell signaling) , microwave , frequency offset , oscillator phase noise , optoelectronics , telecommunications , noise figure , channel (broadcasting) , quantum mechanics , biology , computer science , orthogonal frequency division multiplexing , genetics , programming language , amplifier , cmos

We propose and demonstrate a frequency multiplying optoelectronic oscillator with nonlinearly-coupled double loops based on two cascaded Mach-Zehnder modulators, to generate high frequency microwave signals using only low-frequency devices. We find the final oscillation modes are only determined by the length of the master oscillation loop. Frequency multiplying signals are generated via nonlinearly-coupled double loops, the output of one loop being used to modulate the other. In the experiments, microwave signals at 10 GHz with -121 dBc/Hz phase noise at 10 kHz offset and 20 GHz with -112.8 dBc/Hz phase noise at 10 kHz offset are generated. Meanwhile, their side-mode suppression ratios are also evaluated and the maximum ratio of 70 dB is obtained.

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