Abstract

We demonstrate a single-channel 2.56 Tbit/s polarization-multiplexed DQPSK transmission using 640 Gbaud non-coherent optical Nyquist pulses. By virtue of a large tolerance to polarization-mode dispersion, the detrimental depolarization-induced crosstalk was reduced by 3.8 dB compared with RZ pulses. As a result, the transmission distance was substantially extended to 525 km compared with the distance of 300 km obtained with a Gaussian pulse.

© 2015 Optical Society of America

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References

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  1. M. Nakazawa, T. Yamamoto, and K. R. Tamura, “1.28 Tbit/s-70 km OTDM transmission using third- and fourth-order simultaneous dispersion compensation with a phase modulator,” Electron. Lett. 36(24), 2027–2029 (2000).
    [Crossref]
  2. H. C. Hansen Mulvad, M. Galili, L. K. Oxenløwe, H. Hu, A. T. Clausen, J. B. Jensen, C. Peucheret, and P. Jeppesen, “Demonstration of 5.1 Tbit/s data capacity on a single-wavelength channel,” Opt. Express 18(2), 1438–1443 (2010).
    [Crossref] [PubMed]
  3. T. Richter, E. Palushani, C. Schmidt-Langhorst, M. Nölle, R. Ludwig, and C. Schubert, “Single wavelength channel 10.2 Tb/s TDM-data capacity using 16-QAM and coherent detection,” in Proc. OFC, PDPA9, Los Angeles (2011).
  4. T. Hirooka, K. Harako, P. Guan, and M. Nakazawa, “Second-order PMD-induced crosstalk between polarization-multiplexed signals and its impact on ultrashort optical pulse transmission,” J. Lightwave Technol. 31(5), 809–814 (2013).
    [Crossref]
  5. P. Guan, T. Hirano, K. Harako, Y. Tomiyama, T. Hirooka, and M. Nakazawa, “2.56 Tbit/s/ch polarization-multiplexed DQPSK transmission over 300 km using time-domain optical Fourier transformation,” Opt. Express 19(26), B567–B573 (2011).
    [Crossref] [PubMed]
  6. M. Nakazawa, T. Hirooka, P. Ruan, and P. Guan, “Ultrahigh-speed “orthogonal” TDM transmission with an optical Nyquist pulse train,” Opt. Express 20(2), 1129–1140 (2012).
    [Crossref] [PubMed]
  7. D. O. Otuya, K. Kasai, M. Yoshida, T. Hirooka, and M. Nakazawa, “Single-channel 1.92 Tbit/s, 64 QAM coherent orthogonal TDM transmission of 160 Gbaud optical Nyquist pulses with 10.6 bit/s/Hz spectral efficiency,” in Proc. OFC, M3G.2, Los Angeles (2015).
    [Crossref]
  8. T. Hirooka, P. Ruan, P. Guan, and M. Nakazawa, “Highly dispersion-tolerant 160 Gbaud optical Nyquist pulse TDM transmission over 525 km,” Opt. Express 20(14), 15001–15007 (2012).
    [Crossref] [PubMed]
  9. H. Hu, D. Kong, E. Palushani, J. D. Andersen, A. Rasmussen, B. M. Sørensen, M. Galili, H. C. M. Mulvad, K. J. Larsen, S. Forchhammer, P. Jeppesen, and L. K. Oxenløwe, “1.28 Tbaud Nyquist signal transmission using time-domain optical Fourier transformation based receiver,” in Proc. CLEO, CTh5D.5, San Jose (2013).
    [Crossref]
  10. T. Hirooka, D. Seya, K. Harako, D. Suzuki, and M. Nakazawa, “Ultrafast Nyquist OTDM demultiplexing using optical Nyquist pulse sampling in an all-optical nonlinear switch,” Opt. Express 23(16), 20858–20866 (2015).
    [Crossref] [PubMed]
  11. C. Boerner, V. Marembert, S. Ferber, C. Schubert, C. Schmidt-Langhorst, R. Ludwig, and H. G. Weber, “320 Gbit/s clock recovery with electrooptical PLL using a bidirectionally operated electroabsorption modulator as phase comparator,” in Proc. OFC, OTuO3, Anaheim (2005).

2015 (1)

2013 (1)

2012 (2)

2011 (1)

2010 (1)

2000 (1)

M. Nakazawa, T. Yamamoto, and K. R. Tamura, “1.28 Tbit/s-70 km OTDM transmission using third- and fourth-order simultaneous dispersion compensation with a phase modulator,” Electron. Lett. 36(24), 2027–2029 (2000).
[Crossref]

Clausen, A. T.

Galili, M.

Guan, P.

Hansen Mulvad, H. C.

Harako, K.

Hirano, T.

Hirooka, T.

Hu, H.

Jensen, J. B.

Jeppesen, P.

Nakazawa, M.

Oxenløwe, L. K.

Peucheret, C.

Ruan, P.

Seya, D.

Suzuki, D.

Tamura, K. R.

M. Nakazawa, T. Yamamoto, and K. R. Tamura, “1.28 Tbit/s-70 km OTDM transmission using third- and fourth-order simultaneous dispersion compensation with a phase modulator,” Electron. Lett. 36(24), 2027–2029 (2000).
[Crossref]

Tomiyama, Y.

Yamamoto, T.

M. Nakazawa, T. Yamamoto, and K. R. Tamura, “1.28 Tbit/s-70 km OTDM transmission using third- and fourth-order simultaneous dispersion compensation with a phase modulator,” Electron. Lett. 36(24), 2027–2029 (2000).
[Crossref]

Electron. Lett. (1)

M. Nakazawa, T. Yamamoto, and K. R. Tamura, “1.28 Tbit/s-70 km OTDM transmission using third- and fourth-order simultaneous dispersion compensation with a phase modulator,” Electron. Lett. 36(24), 2027–2029 (2000).
[Crossref]

J. Lightwave Technol. (1)

Opt. Express (5)

Other (4)

C. Boerner, V. Marembert, S. Ferber, C. Schubert, C. Schmidt-Langhorst, R. Ludwig, and H. G. Weber, “320 Gbit/s clock recovery with electrooptical PLL using a bidirectionally operated electroabsorption modulator as phase comparator,” in Proc. OFC, OTuO3, Anaheim (2005).

H. Hu, D. Kong, E. Palushani, J. D. Andersen, A. Rasmussen, B. M. Sørensen, M. Galili, H. C. M. Mulvad, K. J. Larsen, S. Forchhammer, P. Jeppesen, and L. K. Oxenløwe, “1.28 Tbaud Nyquist signal transmission using time-domain optical Fourier transformation based receiver,” in Proc. CLEO, CTh5D.5, San Jose (2013).
[Crossref]

T. Richter, E. Palushani, C. Schmidt-Langhorst, M. Nölle, R. Ludwig, and C. Schubert, “Single wavelength channel 10.2 Tb/s TDM-data capacity using 16-QAM and coherent detection,” in Proc. OFC, PDPA9, Los Angeles (2011).

D. O. Otuya, K. Kasai, M. Yoshida, T. Hirooka, and M. Nakazawa, “Single-channel 1.92 Tbit/s, 64 QAM coherent orthogonal TDM transmission of 160 Gbaud optical Nyquist pulses with 10.6 bit/s/Hz spectral efficiency,” in Proc. OFC, M3G.2, Los Angeles (2015).
[Crossref]

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Figures (6)

Fig. 1
Fig. 1 Experimental setup for 2.56 Tbit/s/ch polarization-multiplexed DQPSK Nyquist pulse transmission. Abbreviations are defined in the inset or in the text.
Fig. 2
Fig. 2 Optical spectra of the data signal before transmission (green) and after 300 km (blue) and 525 km (red) transmissions, measured with a 0.1 nm resolution.
Fig. 3
Fig. 3 Nyquist pulse waveform (a) and spectrum (b) after propagation over 525 km and post-processing with a pulse shaper.
Fig. 4
Fig. 4 Optical spectrum of signal and crosstalk propagated over 525 km.
Fig. 5
Fig. 5 BER characteristics of a demultiplexed 40 Gbaud DQPSK signal in 2.56 Tbit/s/ch polarization-multiplexed DQPSK transmissions with (a) Gaussian and (b) Nyquist pulses.
Fig. 6
Fig. 6 Demultiplexed waveform of 2.56 Tbit/s OTDM signals after 300 km transmissions with a Gaussian pulse (a) and a Nyquist pulse (b). The arrows show each fluctuation amplitude.

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