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Kovacs, Istvan Bence; Faruk, Md. Saifuddin; Savory, Seb J.
IEEE photonics technology letters, 2023-Sept.15,-15, 2023-9-15, Volume: 35, Issue: 18Journal Article
We experimentally demonstrate 200 Gb/s/<inline-formula> <tex-math notation="LaTeX">\lambda </tex-math></inline-formula> 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).
