Abstract
In this paper, for the first time, we propose a photonic-aided digital-to-analog converter (PADAC) to break through transmitter-side bandwidth limitation in intensity modulation and direct detection (IM-DD) systems. By this method, bandwidth of receiver-side devices can be fully utilized, and nonlinear distortions in high-data-rate electrical signals are avoided. Experimental results indicate that, with only linear equalization, 120 GBaud PAM-4 and PAM-6 signals have been successfully generated and detected below 6.25%-OH HD-FEC and 20%-OH SD-FEC limits, respectively.
Original language | English |
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Journal | Journal of Lightwave Technology |
Volume | 38 |
Issue number | 8 |
Pages (from-to) | 2226 - 2230 |
ISSN | 0733-8724 |
DOIs | |
Publication status | Published - 2020 |
Keywords
- Optical interconnects
- Photonic aided digital-to-analog converter
- Pulse amplitude modulation
- Intensity modulation and direct detection
- Linear equalization