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10-Gb/s Access Network Architecture Based on Micro-Ring Modulators With Colorless ONU and Mitigated Rayleigh Backscattering

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5 Author(s)
Lin Xu ; Dept. of Electr. Eng., Columbia Univ., New York, NY, USA ; Padmaraju, K. ; Long Chen ; Lipson, M.
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We demonstrate an optical access network architecture utilizing the wavelength-selective behavior of micro-ring modulators to achieve single-sideband (SSB) modulation, which generates a downstream signal and simultaneously provides a centrally distributed carrier for upstream phase-remodulation. Cascaded silicon micro-rings are capable for complementary metal-oxide-semiconductor (CMOS) integration and multichannel SSB modulations which can help to significantly reduce the cost of the wavelength-division-multiplexed (WDM) passive optical networks (PONs). We further study the power penalty induced by Rayleigh backscattering from the centrally distributed carrier and show a power penalty of less than 0.6 dB when propagating 43 km of a single feeder fiber.

Published in:

Photonics Technology Letters, IEEE  (Volume:23 ,  Issue: 13 )

Date of Publication:

July1, 2011

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