Simultaneous 10 Gbps data and polarization-based pulse-per-second clock transmission using a single VCSEL for high-speed optical fibre access networks

G. M. Isoe; S. Wassin; R. R. G. Gamatham; A. W. R. Leitch; T. B. Gibbon

doi:10.1117/12.2252230

28 January 2017 Simultaneous 10 Gbps data and polarization-based pulse-per-second clock transmission using a single VCSEL for high-speed optical fibre access networks

G. M. Isoe, S. Wassin, R. R. G. Gamatham, A. W. R. Leitch, T. B. Gibbon

Author Affiliations +

Proceedings Volume 10129, Optical Metro Networks and Short-Haul Systems IX; 101290F (2017) https://doi.org/10.1117/12.2252230
Event: SPIE OPTO, 2017, San Francisco, California, United States

Abstract

Access networks based on vertical cavity surface emitting laser (VCSEL) transmitters offer alternative solution in delivering different high bandwidth, cost effective services to the customer premises. Clock and reference frequency distribution is critical for applications such as Coordinated Universal Time (UTC), GPS, banking and big data science projects. Simultaneous distribution of both data and timing signals over shared infrastructure is thus desirable. In this paper, we propose and experimentally demonstrate a novel, cost-effective technique for multi-signal modulation on a single VCSEL transmitter. Two signal types, an intensity modulated 10 Gbps data signal and a polarization-based pulse per second (PPS) clock signal are directly modulated onto a single VCSEL carrier at 1310 nm. Spectral efficiency is maximized by exploiting inherent orthogonal polarization switching of the VCSEL with changing bias in transmission of the PPS signal. A 10 Gbps VCSEL transmission with PPS over 11 km of G.652 fibre introduced a transmission penalty of 0.52 dB. The contribution of PPS to this penalty was found to be 0.08 dB.

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G. M. Isoe, S. Wassin, R. R. G. Gamatham, A. W. R. Leitch, and T. B. Gibbon "Simultaneous 10 Gbps data and polarization-based pulse-per-second clock transmission using a single VCSEL for high-speed optical fibre access networks", Proc. SPIE 10129, Optical Metro Networks and Short-Haul Systems IX, 101290F (28 January 2017); https://doi.org/10.1117/12.2252230

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