Abstract

We propose a possible improvement for optical hybrid transmission systems, based on 40G differential quadrature shift Keying (DQPSK) and 10G differential phase shift keying (DPSK) received by means of a Gaussian narrow filter. We report a reduced cross phase modulation (XPM), at the cost of a slightly more complex setup. This technique is especially effective for systems with low inline dispersion and offers similar performances on different types of fiber.

© 2009 Optical Society of America

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References

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  1. P. J. Winzer and R.-J. Essiambre, "Advanced modulation formats for high-capacity optical transport networks," J. Lightwave Technol. 24, 4711-4728 (2006)
    [CrossRef]
  2. M. Lefrancois, F. Houndonougbo, T. Fauconnier, G. Charlet, and S. Bigo, "Cross comparison of the nonlinear impairments caused by 10Gbit/s neighboring channels on a 40Gbit/s channel modulated with various formats, and over various fiber types," in Tech. Dig. Optical Fiber Communications Conf. (OFC2007), Paper JThA44, (2007)
  3. S. Chandrasekhar and X. Liu, "Impact of channel plan and dispersion map on hybrid DWDM transmission of 42.7-Gb/s DQPSK and 10.7-Gb/s OOK on 50-GHz grid," IEEE Photon. Technol. Lett. 19, 1801-1803, (2007)
    [CrossRef]
  4. D. Penninckx, H. Bissessur, P. Brindel, E. Gohin, and F. Bakhti, "Optical differential phase shift keying (DPSK) direct detection considered as a duobinary signal," in Proceedings 27th European Conf. on Opt. Commun. (ECOC2001), paper We.P.40, (2001)
  5. I. Lyubomirsky and C.-C. Chien, "DPSK demodulator based on optical discriminator filter," IEEE Photon. Technol. Lett. 17, 492-494 (2005)
    [CrossRef]
  6. E. Forestieri and G. Prati, "Narrow filtered DPSK implements order-1 CAPS optical line coding," IEEE Photon. Technol. Lett. 16, 662-664 (2004)
    [CrossRef]
  7. K.-P. Ho, "Probability density of nonlinear phase noise," J. Opt. Soc. Am. B 20,1875-1879 (2003)
    [CrossRef]
  8. M. Bertolini, P. Serena, N. Rossi, and A. Bononi, "Narrow Filtered DPSK: an Attractive Solution for Hybrid Systems," in Proceedings 34th European Conf. on Opt. Commun. (ECOC2008), paper P.4.15, (2008)
  9. A. H. Gnauck and P. J. Winzer, "Optical phase-shift-keyed transmission," J. Lightwave Technol. 23, 115-130 (2005)
    [CrossRef]
  10. Y. Frignac, J.-C. Antona, and S. Bigo, "Enhanced analytical engineering rule for fast optimization dispersion maps in 40 Gbit/s-based transmission," in Tech. Dig. Optical Fiber Communications Conference (OFC2004), paper OTuN3, (2004)
  11. P. Serena, A. Orlandini, and A. Bononi, "Parametric-gain approach to the analysis of single-channel DPSK/DQPSK systems with nonlinear phase noise," J. Lightwave Technol. 24, 2026-2037 (2006)
    [CrossRef]

2007 (1)

S. Chandrasekhar and X. Liu, "Impact of channel plan and dispersion map on hybrid DWDM transmission of 42.7-Gb/s DQPSK and 10.7-Gb/s OOK on 50-GHz grid," IEEE Photon. Technol. Lett. 19, 1801-1803, (2007)
[CrossRef]

2006 (2)

2005 (2)

A. H. Gnauck and P. J. Winzer, "Optical phase-shift-keyed transmission," J. Lightwave Technol. 23, 115-130 (2005)
[CrossRef]

I. Lyubomirsky and C.-C. Chien, "DPSK demodulator based on optical discriminator filter," IEEE Photon. Technol. Lett. 17, 492-494 (2005)
[CrossRef]

2004 (1)

E. Forestieri and G. Prati, "Narrow filtered DPSK implements order-1 CAPS optical line coding," IEEE Photon. Technol. Lett. 16, 662-664 (2004)
[CrossRef]

2003 (1)

Bononi, A.

Chandrasekhar, S.

S. Chandrasekhar and X. Liu, "Impact of channel plan and dispersion map on hybrid DWDM transmission of 42.7-Gb/s DQPSK and 10.7-Gb/s OOK on 50-GHz grid," IEEE Photon. Technol. Lett. 19, 1801-1803, (2007)
[CrossRef]

Chien, C.-C.

I. Lyubomirsky and C.-C. Chien, "DPSK demodulator based on optical discriminator filter," IEEE Photon. Technol. Lett. 17, 492-494 (2005)
[CrossRef]

Essiambre, R.-J.

Forestieri, E.

E. Forestieri and G. Prati, "Narrow filtered DPSK implements order-1 CAPS optical line coding," IEEE Photon. Technol. Lett. 16, 662-664 (2004)
[CrossRef]

Gnauck, A. H.

Ho, K.-P.

Liu, X.

S. Chandrasekhar and X. Liu, "Impact of channel plan and dispersion map on hybrid DWDM transmission of 42.7-Gb/s DQPSK and 10.7-Gb/s OOK on 50-GHz grid," IEEE Photon. Technol. Lett. 19, 1801-1803, (2007)
[CrossRef]

Lyubomirsky, I.

I. Lyubomirsky and C.-C. Chien, "DPSK demodulator based on optical discriminator filter," IEEE Photon. Technol. Lett. 17, 492-494 (2005)
[CrossRef]

Orlandini, A.

Prati, G.

E. Forestieri and G. Prati, "Narrow filtered DPSK implements order-1 CAPS optical line coding," IEEE Photon. Technol. Lett. 16, 662-664 (2004)
[CrossRef]

Serena, P.

Winzer, P. J.

IEEE Photon. Technol. Lett. (3)

I. Lyubomirsky and C.-C. Chien, "DPSK demodulator based on optical discriminator filter," IEEE Photon. Technol. Lett. 17, 492-494 (2005)
[CrossRef]

E. Forestieri and G. Prati, "Narrow filtered DPSK implements order-1 CAPS optical line coding," IEEE Photon. Technol. Lett. 16, 662-664 (2004)
[CrossRef]

S. Chandrasekhar and X. Liu, "Impact of channel plan and dispersion map on hybrid DWDM transmission of 42.7-Gb/s DQPSK and 10.7-Gb/s OOK on 50-GHz grid," IEEE Photon. Technol. Lett. 19, 1801-1803, (2007)
[CrossRef]

J. Lightwave Technol. (3)

J. Opt. Soc. Am. B (1)

Other (4)

M. Lefrancois, F. Houndonougbo, T. Fauconnier, G. Charlet, and S. Bigo, "Cross comparison of the nonlinear impairments caused by 10Gbit/s neighboring channels on a 40Gbit/s channel modulated with various formats, and over various fiber types," in Tech. Dig. Optical Fiber Communications Conf. (OFC2007), Paper JThA44, (2007)

D. Penninckx, H. Bissessur, P. Brindel, E. Gohin, and F. Bakhti, "Optical differential phase shift keying (DPSK) direct detection considered as a duobinary signal," in Proceedings 27th European Conf. on Opt. Commun. (ECOC2001), paper We.P.40, (2001)

M. Bertolini, P. Serena, N. Rossi, and A. Bononi, "Narrow Filtered DPSK: an Attractive Solution for Hybrid Systems," in Proceedings 34th European Conf. on Opt. Commun. (ECOC2008), paper P.4.15, (2008)

Y. Frignac, J.-C. Antona, and S. Bigo, "Enhanced analytical engineering rule for fast optimization dispersion maps in 40 Gbit/s-based transmission," in Tech. Dig. Optical Fiber Communications Conference (OFC2004), paper OTuN3, (2004)

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Figures (4)

Fig. 1.
Fig. 1.

Schematic of the simulated system.

Fig. 2.
Fig. 2.

Sensitivity penalty [dB] vs. P in and D in for the central (3rd, DQPSK) channel over a Leaf (left) or a Teralight (right) fiber. Channels 1, 3, 5 are DQPSK. Channels 2, 4 are OOK (top) or NF-DPSK (bottom).

Fig. 3.
Fig. 3.

DQPSK Q-factor vs. P in for four values of D in on LeafTM (top) or TeralightTM (bottom) fiber. Even channels OOK (solid lines) or NF-DPSK (dashed lines).

Fig. 4.
Fig. 4.

DQPSK Q-factor vs. D in @ P in=-2 dBm on a TeralightTM fiber. Even channels OOK (squares) or NF-DPSK (circles). Solid lines with NLPN, dashed lines with white noise.

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