200 Gb/s/λ Bidirectional Coherent PON Solutions Demonstrated Over Field Installed Fiber

We demonstrate 200 Gb/s bidirectional coherent PON solutions using a simplified optical network unit (ONU) over 19 km of field-installed fiber. The ONU receiver is a single-polarization heterodyne detector with either a balanced or a single-ended photodetector and the transmitter is based on dual-po...

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Bibliographic Details
Published in:IEEE photonics technology letters 2024-09, Vol.36 (17), p.1089-1092
Main Authors: Kovacs, Istvan Bence, Faruk, Md. Saifuddin, Wonfor, Adrian, Savory, Seb J.
Format: Article
Language:English
Subjects:
coherent transceivers
Optical fiber amplifiers
Optical fiber polarization
optical line terminal (OLT)
optical network unit (ONU)
Optical network units
Optical receivers
Optical sensors
Optical transmitters
Passive optical network (PON)
Semiconductor optical amplifiers
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Summary:We demonstrate 200 Gb/s bidirectional coherent PON solutions using a simplified optical network unit (ONU) over 19 km of field-installed fiber. The ONU receiver is a single-polarization heterodyne detector with either a balanced or a single-ended photodetector and the transmitter is based on dual-polarization electro-absorption modulated laser (EML). The optical line terminal (OLT) uses standard dual-polarization coherent transceivers. The downstream solutions achieve 37 dB and 30.5 dB power budget for the receiver with balanced and single-ended photodiodes, respectively. For the upstream, two line rates have been investigated: 200 Gb/s/ \lambda for symmetrical transmission and 100 Gb/s/ \lambda for asymmetric transmission achieving a power budget of 30.1 dB and 40.9 dB respectively.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2024.3434640