Dual-wavelength photonic beamformer for OFDM and single-carrier broadband wireless operating over 1-km 7-core fiber fronthaul

Maria Morant, Ailee M. Trinidad, Eduward Tangdiongga, Ton Koonen, Roberto Llorente

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

Samenvatting

This paper reports a dual-wavelength photonic beamformer implementing optical true time delay (OTTD) to realize microwave beam steering. The beamformer is capable of providing independent delay tuning to two separate beams modulated on different optical carriers. The integrated TTD chip includes a multiplexer that combines the two input wavelengths, an optical sideband filter (OSBF) and optical ring resonators (ORRs) that induce different optical delays. The ORRs are thermo-optically tuned to change the coupling ratio and obtain an incremental delay in each optical path. The experimental demonstration includes a full-compliant WiFi channel (at 5 GHz or 18 GHz RF bands) transmitted in one optical carrier and a WiMAX channel (at 5.4 GHz or 19 GHz RF) in another optical carrier operating in the resonance slope of the ORRs. The different antenna elements are connected with 1-km of 7-core fiber, achieving EVM-compliant levels at the antennas with beam-steering angles ranging from -40° to +80°. The performance comparison considering single-carrier broadband RF signals at the same frequency bands is also reported in this work.

Originele taal-2Engels
TitelBroadband Access Communication Technologies XIV
RedacteurenBenjamin B. Dingel, Katsutoshi Tsukamoto, Spiros Mikroulis
UitgeverijSPIE
Aantal pagina's6
ISBN van elektronische versie9781510633773
DOI's
StatusGepubliceerd - 31 jan 2020
EvenementBroadband Access Communication Technologies XIV 2020 - San Francisco, Verenigde Staten van Amerika
Duur: 4 feb 20205 feb 2020

Publicatie series

NaamProceedings of SPIE - The International Society for Optical Engineering
Volume11307
ISSN van geprinte versie0277-786X
ISSN van elektronische versie1996-756X

Congres

CongresBroadband Access Communication Technologies XIV 2020
LandVerenigde Staten van Amerika
StadSan Francisco
Periode4/02/205/02/20

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  • Citeer dit

    Morant, M., Trinidad, A. M., Tangdiongga, E., Koonen, T., & Llorente, R. (2020). Dual-wavelength photonic beamformer for OFDM and single-carrier broadband wireless operating over 1-km 7-core fiber fronthaul. In B. B. Dingel, K. Tsukamoto, & S. Mikroulis (editors), Broadband Access Communication Technologies XIV [113070D] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 11307). SPIE. https://doi.org/10.1117/12.2545749