Single DPLL Joint Carrier Phase Compensation for Few-Mode Fiber Transmission

R.G.H. Uden, van, C.M. Okonkwo, V.A.J.M. Sleiffer, M. Kuschnerov, H. Waardt, de, A.M.J. Koonen

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25 Citations (Scopus)
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A carrier phase estimation and compensation algorithm using a digital phase locked loop is proposed which exploits the common-mode impairment from the shared local oscillator at the receiver side in a few-mode fiber transmission system. We verify that the proposed algorithm is more tolerant to phase-mismatches than earlier work. The carrier phase estimation (CPE) scheme is evaluated for a 3$,times,$ 112 Gbit/s dual polarization quadrature phase shift keying mode division multiplexed transmission over 80 km including an in-line multimode erbium doped fiber amplifier. The digital signal processing computational complexity is reduced in comparison to a traditional CPE stage. In addition, the proposed scheme is shown to perform similarly with respect to the $3.8times 10^{-3}$ forward error correcting limit optical signal to noise ratio tolerance of the traditional CPE scheme.
Original languageEnglish
Pages (from-to)1381-1384
Number of pages3
JournalIEEE Photonics Technology Letters
Issue number14
Publication statusPublished - 2013


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