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Transmission and full-band coherent detection of polarization-multiplexed all-optical Nyquist signals generated by Sinc-shaped Nyquist pulses.

Zhang J, Yu J, Chi N - Sci Rep (2015)

Bottom Line: All optical method is considered as a promising technique for high symbol rate Nyquist signal generation, which has attracted a lot of research interests for high spectral-efficiency and high-capacity optical communication system.In this paper, we extend our previous work and report the fully experimental demonstration of polarization-division multiplexed (PDM) all-optical Nyquist signal generation based on Sinc-shaped Nyquist pulse with advanced modulation formats, fiber-transmission and single-receiver full-band coherent detection.Using this scheme, we have successfully demonstrated the generation, fiber transmission and single-receiver full-band coherent detection of all-optical Nyquist PDM-QPSK and PDM-16QAM signals up to 125-GBaud. 1-Tb/s single-carrier PDM-16QAM signal generation and full-band coherent detection is realized, which shows the advantage and feasibility of the single-carrier all-optical Nyquist signals.

View Article: PubMed Central - PubMed

Affiliation: Department of Communication Science and Engineering, and Key Laboratory for Information Science of Electromagnetic Waves (MoE), Fudan University, 220 Handan Road, Shanghai 200433, China.

ABSTRACT
All optical method is considered as a promising technique for high symbol rate Nyquist signal generation, which has attracted a lot of research interests for high spectral-efficiency and high-capacity optical communication system. In this paper, we extend our previous work and report the fully experimental demonstration of polarization-division multiplexed (PDM) all-optical Nyquist signal generation based on Sinc-shaped Nyquist pulse with advanced modulation formats, fiber-transmission and single-receiver full-band coherent detection. Using this scheme, we have successfully demonstrated the generation, fiber transmission and single-receiver full-band coherent detection of all-optical Nyquist PDM-QPSK and PDM-16QAM signals up to 125-GBaud. 1-Tb/s single-carrier PDM-16QAM signal generation and full-band coherent detection is realized, which shows the advantage and feasibility of the single-carrier all-optical Nyquist signals.

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The BER results.(a) The BTB BER results versus the OSNR for 75 and 125-GBaud all-optical PDM-QPSK signals comparing with theoretical curves; (b) The transmission BER results of 75 and 125-GBaud all-optical PDM-QPSK signals versus the transmission distance.
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f8: The BER results.(a) The BTB BER results versus the OSNR for 75 and 125-GBaud all-optical PDM-QPSK signals comparing with theoretical curves; (b) The transmission BER results of 75 and 125-GBaud all-optical PDM-QPSK signals versus the transmission distance.

Mentions: The BTB BER performance of the generated all-optical Nyquist 75 and 125-GBaud PDM-QPSK signals are measured versus the OSNR as shown in Fig. 8(a). Compared with theoretical BER curve, there is 2-dB OSNR penalty for Nyquist 75-GBaud PDM-QPSK signal, and about 4-dB penalty for the 125-GBaud PDM-QPSK signal. Both results in Figs 5 and 8 are better compared with16. Compared with the equipment used in16, in this paper we measure the time-domain waveforms by using the Agilent 86118A remote sampling module with 86107A precision timebase module. Jitter performance has been reduced by almost an order of magnitude to less than 200 fs RMS. Timebase resolution has also been improved from the 10 ps/division to 2 ps/division. Because the 86107A improves timebase jitter and linearity by more than a factor of five it provides extremely accurate views of high symbol rate signals. And we have confirmed that, this module can help us do more precise time-delay tuning. The amplitude measurement of the pulses is also more stable.


Transmission and full-band coherent detection of polarization-multiplexed all-optical Nyquist signals generated by Sinc-shaped Nyquist pulses.

Zhang J, Yu J, Chi N - Sci Rep (2015)

The BER results.(a) The BTB BER results versus the OSNR for 75 and 125-GBaud all-optical PDM-QPSK signals comparing with theoretical curves; (b) The transmission BER results of 75 and 125-GBaud all-optical PDM-QPSK signals versus the transmission distance.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4555172&req=5

f8: The BER results.(a) The BTB BER results versus the OSNR for 75 and 125-GBaud all-optical PDM-QPSK signals comparing with theoretical curves; (b) The transmission BER results of 75 and 125-GBaud all-optical PDM-QPSK signals versus the transmission distance.
Mentions: The BTB BER performance of the generated all-optical Nyquist 75 and 125-GBaud PDM-QPSK signals are measured versus the OSNR as shown in Fig. 8(a). Compared with theoretical BER curve, there is 2-dB OSNR penalty for Nyquist 75-GBaud PDM-QPSK signal, and about 4-dB penalty for the 125-GBaud PDM-QPSK signal. Both results in Figs 5 and 8 are better compared with16. Compared with the equipment used in16, in this paper we measure the time-domain waveforms by using the Agilent 86118A remote sampling module with 86107A precision timebase module. Jitter performance has been reduced by almost an order of magnitude to less than 200 fs RMS. Timebase resolution has also been improved from the 10 ps/division to 2 ps/division. Because the 86107A improves timebase jitter and linearity by more than a factor of five it provides extremely accurate views of high symbol rate signals. And we have confirmed that, this module can help us do more precise time-delay tuning. The amplitude measurement of the pulses is also more stable.

Bottom Line: All optical method is considered as a promising technique for high symbol rate Nyquist signal generation, which has attracted a lot of research interests for high spectral-efficiency and high-capacity optical communication system.In this paper, we extend our previous work and report the fully experimental demonstration of polarization-division multiplexed (PDM) all-optical Nyquist signal generation based on Sinc-shaped Nyquist pulse with advanced modulation formats, fiber-transmission and single-receiver full-band coherent detection.Using this scheme, we have successfully demonstrated the generation, fiber transmission and single-receiver full-band coherent detection of all-optical Nyquist PDM-QPSK and PDM-16QAM signals up to 125-GBaud. 1-Tb/s single-carrier PDM-16QAM signal generation and full-band coherent detection is realized, which shows the advantage and feasibility of the single-carrier all-optical Nyquist signals.

View Article: PubMed Central - PubMed

Affiliation: Department of Communication Science and Engineering, and Key Laboratory for Information Science of Electromagnetic Waves (MoE), Fudan University, 220 Handan Road, Shanghai 200433, China.

ABSTRACT
All optical method is considered as a promising technique for high symbol rate Nyquist signal generation, which has attracted a lot of research interests for high spectral-efficiency and high-capacity optical communication system. In this paper, we extend our previous work and report the fully experimental demonstration of polarization-division multiplexed (PDM) all-optical Nyquist signal generation based on Sinc-shaped Nyquist pulse with advanced modulation formats, fiber-transmission and single-receiver full-band coherent detection. Using this scheme, we have successfully demonstrated the generation, fiber transmission and single-receiver full-band coherent detection of all-optical Nyquist PDM-QPSK and PDM-16QAM signals up to 125-GBaud. 1-Tb/s single-carrier PDM-16QAM signal generation and full-band coherent detection is realized, which shows the advantage and feasibility of the single-carrier all-optical Nyquist signals.

No MeSH data available.


Related in: MedlinePlus