Polarization-insensitive wavelength conversion of 40 Gb/s NRZ-DPSK signals in a silicon polarization diversity circuit

Dragana Vukovic, Yunhong Ding, Hao Hu, Haiyan Ou, Leif Katsuo Oxenløwe, Christophe Peucheret

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    Abstract

    Polarization insensitive wavelength conversion of a 40 Gb/s non-return-to-zero (NRZ) differential phase-shift keying (DPSK) data signal is demonstrated using four-wave mixing (FWM) in a silicon nanowire circuit. Polarization independence is achieved using a diversity circuit based on polarization rotators and splitters, which is fabricated by a simple process on the silicon-on-insulator (SOI) platform. Error-free performance is achieved with only 0.5 dB of power penalty compared to the wavelength conversion of a signal with well optimized input polarization. Additionally, data transmission over 161 km standard single-mode fiber (SSMF) is demonstrated at 40 Gb/s using optical phase conjugation (OPC) in the proposed circuit.

    Original languageEnglish
    JournalOptics Express
    Volume22
    Issue number10
    Pages (from-to)12467-12474
    ISSN1094-4087
    DOIs
    Publication statusPublished - 2014

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