Nonlinear polarization rotation in a dispersionflattened photonic-crystal fiber for ultrawideband (> 100 nm) all-optical wavelength conversion of 10 Gbit/s nonreturn-to-zero signals

C. Kwok, Chi Wai Chow, H. Tsang, Chinlon Lin, A. Bjarklev

Research output: Contribution to journalArticle

9 Scopus citations

Abstract

We study the conversion bandwidth of the cross-polarization-modulation (XPoIM)-based wavelength conversion scheme with a dispersion-flattened highly nonlinear photonic-crystal fiber for signals with a nonreturnto-zero (NRZ) modulation format. Both theoretical and experimental results show that the conversion bandwidth can be extended to cover a very wide band, including S-, C-, and L-bands for 10 Gbit/s NRZ signals (a total bandwidth of 120 nm is experimentally demonstrated). We also study the theoretical bandwidth limit for 40 Gbit/s NRZ signals. A significant extension of the conversion bandwidth using the XPoIM approach compared with the four-wave mixing approach previously reported is demonstrated.

Original languageEnglish
Pages (from-to)1782-1784
Number of pages3
JournalOptics Letters
Volume31
Issue number12
DOIs
StatePublished - 15 Jun 2006

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