Optically Tunable Frequency-Multiplying Optoelectronic Oscillator

An optically tunable frequency-multiplying optoelectronic oscillator (OEO) incorporating a tunable microwave photonic bandpass filter is proposed and experimentally demonstrated. The microwave photonic filter is implemented employing a phase-shifted fiber Bragg grating, a polarization modulator, and...

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Bibliographic Details
Published inIEEE photonics technology letters Vol. 24; no. 10; pp. 812 - 814
Main Authors Li, Wangzhe, Yao, Jianping
Format Journal Article
LanguageEnglish
Published IEEE 15.05.2012
Subjects
Frequency modulation
Frequency multiplication
Microwave filters
microwave generation
Microwave oscillators
Microwave photonics
Optical reflection
optoelectronic oscillator
phase-shifted fiber Bragg grating
polarization modulation
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Summary:An optically tunable frequency-multiplying optoelectronic oscillator (OEO) incorporating a tunable microwave photonic bandpass filter is proposed and experimentally demonstrated. The microwave photonic filter is implemented employing a phase-shifted fiber Bragg grating, a polarization modulator, and a phase modulator. The frequency tuning is realized by changing the wavelength of the light wave to the OEO loop. The frequency-doubling and frequency-quadrupling operations with large frequency tunability are experimentally demonstrated. The phase noise performance of the generated microwave signals is also investigated.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2012.2188712