Wavelength shift tolerance of a heterodyne detection scheme for cost-efficient DWDM-PON / 60 GHz wireless integration

M. C. R. Medeiros; M. P. Thakur; S. Mikroulis; J. E. Mitchell

doi:10.1117/12.2080844

7 February 2015 Wavelength shift tolerance of a heterodyne detection scheme for cost-efficient DWDM-PON / 60 GHz wireless integration

M. C. R. Medeiros, M. P. Thakur, S. Mikroulis, J. E. Mitchell

Author Affiliations +

Proceedings Volume 9387, Broadband Access Communication Technologies IX; 93870E (2015) https://doi.org/10.1117/12.2080844
Event: SPIE OPTO, 2015, San Francisco, California, United States

Abstract

Radio-over-fiber systems employing remote antenna units (RAUs) based on coherent optical heterodyne detection of two phase uncorrelated lasers and envelope detection have been recently demonstrated. By using two uncorrelated lasers, this system concept allows simple implementation that can additionally be improved, if thermally uncooled lasers are used. Although such asynchronous receiver design is mildly affected by the laser phase noise, it suffers from the wavelength drift that occurs between the uncooled laser sources. Also, there are performance penalties due to high laser line-width when complex modulation formats are used for transmission. In this work, we analyze the performance of heterodyne based optical receivers, using OOK and multilevel modulation.

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M. C. R. Medeiros, M. P. Thakur, S. Mikroulis, and J. E. Mitchell "Wavelength shift tolerance of a heterodyne detection scheme for cost-efficient DWDM-PON / 60 GHz wireless integration", Proc. SPIE 9387, Broadband Access Communication Technologies IX, 93870E (7 February 2015); https://doi.org/10.1117/12.2080844

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