Journal
IEEE PHOTONICS TECHNOLOGY LETTERS
Volume 32, Issue 2, Pages 125-128Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LPT.2019.2960238
Keywords
Datacenter interconnects; silicon photonics; micro-ring modulator; short-reach communication
Funding
- Hong Kong Research Grants Council General Research Fund [14212816]
- Advanced Research Projects Agency-Energy (ARPA-E) under the ENLITENED Program [DE-AR0000843]
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Silicon photonics has been regarded as a promising technology for future small-footprint, low-cost and low-power 400-Gbit/s datacenter interconnects (DCIs). In this work, for the first time, we report an experimental demonstration of a single-wavelength, single-polarization 160-Gbit/s four-level pulse-amplitude modulation (PAM-4) employing a single integrated silicon carrier-depletion micro-ring modulator (MRM). The measured bit-error rates (BERs) for the back-to-back (BTB) and after 1-km standard single-mode fiber (SSMF) transmission are 1.36E-3 and 2.12E-3, respectively, all below the hard-decision forward error correction (HD-FEC) coding limit with 7% overhead. A data rate of up to 170 Gbit/s with a BER lower than the HD-FEC limit is demonstrated for the BTB transmission.
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