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YAN XU1, SHUAI WANG1,*
Considering the rapid demands for bandwidth and the rare spectrum resources, there is an urgent need for upgrading the current NG-PON2 systems. In this paper, three upgradation methods are proposed including the bit rate increment from 10 Gb/s to 25 Gb/s per channel, the channel spacing decrement from 100 GHz to 50 GHz, and the increment in number of channels from 8 to 16. Moreover, the cross-phase modulation (XPM) effect on the upgradation methods is investigated. In the first case of increasing the bit rate to 25 Gb/s per channel, owing to the more-severe XPM effect induced by the bit rate increment, the XPM-induced sensitivity penalty is 2.3 dB. In the second case of decreasing the channel spacing to 50 GHz, the XPM effect causes a 0.4-dB sensitivity penalty. In the last case of increasing the number of channels to 16, an ignorable sensitivity penalty is induced to the system. The given results shall provide a reference in the formulation of future NG-PON2 standards.
Upgraded NG-PON2, Cross-phase modulation (XPM), Sensitivity penalty.
YAN XU, SHUAI WANG, Investigation of cross-phase modulation effect on upgraded NG-PON2 systems, Optoelectronics and Advanced Materials - Rapid Communications, 16, 7-8, July-August 2022, pp.319-324 (2022).
Submitted at: Feb. 24, 2022
Accepted at: Aug. 10, 2022
Optoelectronics and Advanced Materials - Rapid Communications
(2024): Impact Factor = 0.4 - Journal Citation Reports (Clarivate Analytics, 2025)
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