200 Gb/s/λ Upstream PON Using Polarization Multiplexed PAM4 With Coherent Detection

作者：Istvan Bence Kovacs, Md. Saifuddin Faruk, Seb J. Savory · 发表于：IEEE Photonics Technology Letters · 年份：2023 · DOI：10.1109/lpt.2023.3300070 · 被引用次数：21 · 研究领域：Optical Network Technologies、Advanced Photonic Communication Systems、Photonic and Optical Devices

We experimentally demonstrate 200 Gb/s/$\lambda $upstream coherent passive optical network (PON) using polarization division multiplexed (PDM) pulse amplitude modulation 4-level (PAM4) signal with coherent detection. The 50 GBaud PDM-PAM4 is generated using a low cost C-band electro-absorption modulated laser (EML), polarization-division multiplexing (PDM) emulator and semiconductor optical amplifier (SOA). A power budget of 29.4 dB is achieved for 25 km single mode fiber (SMF) transmission using a class-40 integrated coherent receiver (ICR) at the optical line terminal (OLT).