Intensity-noise suppression in microwave-photonic links using polarization modulation

TitleIntensity-noise suppression in microwave-photonic links using polarization modulation
Publication TypeJournal Article
Year of Publication2005
AuthorsDarcie, T. E., R. Paiam, A. Moye, J. D. Bull, H. Kato, and N. A. F. F. Jaeger
JournalPhotonics Technology Letters, IEEE
Pagination1941 -1943
Date Publishedsep.
KeywordsAlGaAs-GaAs, AlGaAs-GaAs modulator, aluminium compounds, balanced optical receiver, balanced output configuration, beat noise, common-mode intensity noise, electro-optical modulation, electrooptic modulator, gallium arsenide, III-V semiconductors, intensity-noise suppression, microwave photonics, microwave-photonic links, mode-converter-based modulator, optical amplifier, optical fibre polarisation, optical noise, optical receivers, orthogonal polarizations, polarization modulation, polarization modulator, polarization-selective receiver, transmission fiber

A novel microwave-photonic link is demonstrated using a unique AlGaAs-GaAs electrooptic mode-converter-based polarization modulator in a balanced output configuration. This enables suppression of common-mode intensity noise and optical-amplifier-induced beat noise using a polarization-selective balanced optical receiver. Unlike the conventional approach using a dual-output Mach-Zehnder modulator, the complementary output signals are combined naturally as orthogonal polarizations into one transmission fiber.


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