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Tunable wideband microwave photonic phase shifter using on-chip stimulated Brillouin scattering

Pagani, Mattia; Marpaung, David; Choi, Duk-Yong; Madden, Steve J; Luther-Davies, Barry; Eggleton, Benjamin J


We present the first microwave photonic phase shifter using stimulated Brillouin scattering (SBS) on-chip. The unique ability of SBS to generate both narrowband gain and loss resonances allows us to achieve low ±1.5 dB amplitude fluctuations, which is a record for integrated devices, along with 240° continuously tunable phase shift. Contrary to previous SBS-based approaches, the phase shift tuning mechanism relies on tuning the power, not the frequency, of two SBS pumps, making it more suited...[Show more]

CollectionsANU Research Publications
Date published: 2014-11-17
Type: Journal article
Source: Optics express
DOI: 10.1364/OE.22.028810


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