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Wavelength reused upstream transmission scheme for WDM passive optical networks

Wavelength reused upstream transmission scheme for WDM passive optical networks

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A novel technique facilitating wavelength reused upstream transmission in a WDM passive optical network, eliminating wavelength source at ONUs, is proposed and experimentally demonstrated. A subcarrier frequency is used for downstream transmission and the pure optical carrier is filtered and reused for upstream transmission. The scheme requires only simple baseband receivers at both ONU and OLT terminals.

Inspec keywords: optical fibre networks; wavelength division multiplexing; optical communication

Other keywords: subcarrier frequency; optical line terminal; wavelength division multiplexing; wavelength reused upstream transmission; WDM passive optical network; wavelength source; downstream transmission; optical network units; optical carrier; baseband receiver

Subjects: Multiplexing and switching in optical communication; Optical fibre networks

References

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      • W. Hung , C.K. Chan , L.K. Chen , F. Tong . An optical network unit for WDM access networks with downstream DPSK and upstream remodulated OOK data using injection-locked FP laser. IEEE Photonics Technol. Lett. , 10 , 1476 - 1478
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