All-optical modulation format conversion from OOK to DP-QPSK based on fiber nonlinearity

被引：0
作者：
Duarte, Vanessa C. [1 ]
Drummond, Miguel V. [1 ]
Nogueira, Rogerio N. [1 ]
机构：
[1] Campus Univ Santiago, Inst Telecommun, P-3810193 Aveiro, Portugal
来源：
SECOND INTERNATIONAL CONFERENCE ON APPLICATIONS OF OPTICS AND PHOTONICS | 2014年 / 9286卷
关键词：
Dual polarization-quadrature phase shift keying; polarization maintaining-highly nonlinear fiber; cross phase modulation;
D O I：
10.1117/12.2063737
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper we propose and demonstrate by simulation an all-optical modulation format conversion from non-return-tozero on-off keying (NRZ-OOK) at 10 Gb/s to dual-polarization quadrature-phase-shift keying(DP-QPSK) at 20 Gb/s for each channel, by cross phase modulation (XPM) in a polarization-maintaining highly nonlinear fiber (PM-HNLF). The obtained results show a constellation diagram with an error vector magnitude (EVM), 17.26% and 18.79%, for each channel. The input powers of the two NRZ-OOK channels were 16.9dBm and 13.9dBm for a 3km fiber length. We also studied the impact of the nonlinear fiber length in the conversion of the signal and analyzed the system performance based on error vector magnitude (EVM) for different fiber lengths.
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页数：5
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