Next-generation TDM-PON based on multilevel differential modulation

N. Sotiropoulos, A.M.J. Koonen, H. Waardt, de

Research output: Contribution to journalArticleAcademicpeer-review

18 Citations (Scopus)


In this letter, a next-generation time-division multiplexed passive optical network (TDM-PON) based on multilevel differential modulation formats is proposed. Multilevel modulation enables the efficient scaling of bit rates without resorting to very high-speed electronics and photonics, while differential detection simplifies the detection process. The 40 Gb/s downstream signal is implemented with Star 16 quadrature amplitude modulation, while two upstream channels are evaluated, a simple, asymmetrical 10 Gb/s on-off keying signal and a 30-Gb/s differential eight phase-shift keying signal. Experimental results show very good receiver sensitivities, indicating the proposed modulation format's suitability for future very high-speed TDM-PONs.
Original languageEnglish
Pages (from-to)418-421
JournalIEEE Photonics Technology Letters
Issue number5
Publication statusPublished - 2013


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