Abstract

We study the intrinsic relations and conversions among different binary modulation formats such as non-return-to-zero (NRZ), return-to-zero (RZ), carrier-suppressed return-to-zero (CSRZ), differential-phase-shift-keying (DPSK), duobinary, and alternate-mark-inversion (AMI). In particular, we experimentally demonstrate the new conversion from CSRZ to duobinary using a Mach-Zehnder delay interferometer (MZDI).

© 2008 Optical Society of America

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  1. P. J. Winzer and R. -J. Essiambre, “Advanced optical modulation formats,” in Proceedings of the IEEE 94, 952–985 (2006).
    [Crossref]
  2. G. Charlet, J.-C. Antona, S. Lannel, P. Tran, W. Idler, M. Gorlier, S. Borne, A. Klekamp, C. Simonneau, L. Pierre, Y. Frignac, M. Molina, F. Beaumont, J.-P. Hamaide, and S. Bigo, “6.4Tb/s (159 × 42.7Gb/s) capacity over 21 × 100 km using bandwidth-limited phase-shaped binary transmission” in Proceedings of the European Conference on Optical Communication (ECOC 2002), paper PD 4.1.
  3. H. Lee, J. Lee, H. Kim, S. K. Kim, G. Lee, S. Hwang, Y. Oh, and J. Jeong, “300 km transmission of 10 Gbit/s chirped duobinary signals using two Mach-Zehnder modulators,” Electron. Lett. 41, 202–203 (2005).
    [Crossref]
  4. A. Agarwal, S. Banerjee, D. F. Grosz, A. P. Küng, D. N. Maywar, A. Gurevich, and T. H. Wood, “Ultra-high-capacity long-haul 40-Gb/s WDM transmission with 0.8-b/s/Hz spectral efficiency by means of strong optical filtering,” IEEE Photon. Technol. Lett. 15, 470–472 (2003).
    [Crossref]
  5. A. H. Gnauck, X. Liu, X. Wei, D. M. Gill, and E. C. Burrows, “Comparison of modulation formats for 42.7-Gb/s single-channel transmission through 1980 km of SSMF,” IEEE Photon. Technol. Lett. 16, 909–911 (2004).
    [Crossref]
  6. P. J. Winzer, A. H. Gnauck, G. Raybon, S. Chandrasekhar, Y. Su, and J. Leuthold, “40-Gb/s return-to-zero alternate-mark-inversion (RZ-AMI) transmission over 2000 km,” IEEE Photon. Technol. Lett. 15, 766–768 (2003).
    [Crossref]
  7. A. H. Gnauck, G. Raybon, S. Chandrasekhar, J. Leuthold, C. Doerr, L. Stulz, and E. Burrows, “25 × 40-Gb/s copolarized DPSK transmission over 12 × 100-km NZDF with 50-GHz channel spacing,” IEEE Photon. Technol. Lett. 15, 467–469 (2003).
    [Crossref]
  8. T. Mizuochi, K. Ishida, T. Kobayashi, J. Abe, K. Kinjo, K. Motoshima, and K. Kasahara, “A comparative study of DPSK and OOK WDM transmission over transoceanic distances and their performance degradations due to nonlinear phase noise,” J. Lightw. Technol. 21, 1933–1943 (2003).
    [Crossref]
  9. B. Zhu, L. E. Nelson, S. Stulz, A. H. Gnauck, C. Doerr, J. Leuthold, G. Nielsen, M. O. Pedersen, J. Kim, and R. L. Lingle Jr., “High spectral density long-haul 40-Gb/s transmission using CSRZ-DPSK format,” J. Lightwave Technol. 22, 208–214 (2004).
    [Crossref]
  10. B. Zhu, L. E. Nelson, S. Stulz, A. H. Gnauck, C. Doerr, J. Leuthold, L. Gruner-Nielsen, M. O. Pedersen, J. Kim, R. Lingle, Y. Emori, Y. Ohki, N. Tsukiji, A. Oguri, and S. Namiki, “6.4-Tb/s (160 × 42.7 Gb/s) transmission with 0.8 bit/s/Hz spectral efficiency over 32 × 100 km of fiber using CSRZ-DPSK format,” in Optical Fiber Communication Conference, Technical Digest (Optical Society of America, 2003), paper PD19.
    [Crossref]
  11. W. D. Li, M. H. Chen, Y. Dong, and S. Z. Xie, “All-optical format conversion from NRZ to CSRZ and between RZ and CSRZ using SOA-based fiber loop mirror,” IEEE Photon. Technol. Lett. 16, 203–205 (2004).
    [Crossref]
  12. Y. Yu, X. Zhang, and D. Huang, “All-optical format conversion from CS-RZ to NRZ at 40Gbit/s,” Opt. Express 15, 5693–5698 (2007).
    [Crossref] [PubMed]
  13. J. Yu, G. K. Chang, J. Barry, and Y. Su, “40 Gbit/s signal format conversion from NRZ to RZ using a Mach-Zehnder delay interferometer,” Opt. Commun. 248, 419–422 (2005).
    [Crossref]
  14. 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 of the European Conference on Optical Communication (ECOC 2001), paper We.P40.
  15. C. Xie, L. Moller, and R. Ryf, “Improvement of optical NRZ- and RZ-duobinary transmission systems with narrow bandwidth optical filters,” IEEE Photon. Technol. Lett. 16, 2162–2164 (2004).
    [Crossref]
  16. I. Lyubomirsky and C. -C. Chien, “Experimental demonstration of an optimized optical RZ-duobinary transmission system,” IEEE Photon. Technol. Lett. 17, 2757–2759 (2005).
    [Crossref]
  17. Y. K. Lizé, L. Christen, X. Wu, J. -Y. Yang, S. Nuccio, T. Wu, A. E. Willner, and R. Kashyap, “Free spectral range optimization of return-to-zero differential phase shift keyed demodulation in the presence of chromatic dispersion,” Opt. Express 15, 6817–6822 (2007).
    [Crossref] [PubMed]

2007 (2)

2006 (1)

P. J. Winzer and R. -J. Essiambre, “Advanced optical modulation formats,” in Proceedings of the IEEE 94, 952–985 (2006).
[Crossref]

2005 (3)

H. Lee, J. Lee, H. Kim, S. K. Kim, G. Lee, S. Hwang, Y. Oh, and J. Jeong, “300 km transmission of 10 Gbit/s chirped duobinary signals using two Mach-Zehnder modulators,” Electron. Lett. 41, 202–203 (2005).
[Crossref]

I. Lyubomirsky and C. -C. Chien, “Experimental demonstration of an optimized optical RZ-duobinary transmission system,” IEEE Photon. Technol. Lett. 17, 2757–2759 (2005).
[Crossref]

J. Yu, G. K. Chang, J. Barry, and Y. Su, “40 Gbit/s signal format conversion from NRZ to RZ using a Mach-Zehnder delay interferometer,” Opt. Commun. 248, 419–422 (2005).
[Crossref]

2004 (4)

C. Xie, L. Moller, and R. Ryf, “Improvement of optical NRZ- and RZ-duobinary transmission systems with narrow bandwidth optical filters,” IEEE Photon. Technol. Lett. 16, 2162–2164 (2004).
[Crossref]

B. Zhu, L. E. Nelson, S. Stulz, A. H. Gnauck, C. Doerr, J. Leuthold, G. Nielsen, M. O. Pedersen, J. Kim, and R. L. Lingle Jr., “High spectral density long-haul 40-Gb/s transmission using CSRZ-DPSK format,” J. Lightwave Technol. 22, 208–214 (2004).
[Crossref]

W. D. Li, M. H. Chen, Y. Dong, and S. Z. Xie, “All-optical format conversion from NRZ to CSRZ and between RZ and CSRZ using SOA-based fiber loop mirror,” IEEE Photon. Technol. Lett. 16, 203–205 (2004).
[Crossref]

A. H. Gnauck, X. Liu, X. Wei, D. M. Gill, and E. C. Burrows, “Comparison of modulation formats for 42.7-Gb/s single-channel transmission through 1980 km of SSMF,” IEEE Photon. Technol. Lett. 16, 909–911 (2004).
[Crossref]

2003 (4)

P. J. Winzer, A. H. Gnauck, G. Raybon, S. Chandrasekhar, Y. Su, and J. Leuthold, “40-Gb/s return-to-zero alternate-mark-inversion (RZ-AMI) transmission over 2000 km,” IEEE Photon. Technol. Lett. 15, 766–768 (2003).
[Crossref]

A. H. Gnauck, G. Raybon, S. Chandrasekhar, J. Leuthold, C. Doerr, L. Stulz, and E. Burrows, “25 × 40-Gb/s copolarized DPSK transmission over 12 × 100-km NZDF with 50-GHz channel spacing,” IEEE Photon. Technol. Lett. 15, 467–469 (2003).
[Crossref]

T. Mizuochi, K. Ishida, T. Kobayashi, J. Abe, K. Kinjo, K. Motoshima, and K. Kasahara, “A comparative study of DPSK and OOK WDM transmission over transoceanic distances and their performance degradations due to nonlinear phase noise,” J. Lightw. Technol. 21, 1933–1943 (2003).
[Crossref]

A. Agarwal, S. Banerjee, D. F. Grosz, A. P. Küng, D. N. Maywar, A. Gurevich, and T. H. Wood, “Ultra-high-capacity long-haul 40-Gb/s WDM transmission with 0.8-b/s/Hz spectral efficiency by means of strong optical filtering,” IEEE Photon. Technol. Lett. 15, 470–472 (2003).
[Crossref]

Abe, J.

T. Mizuochi, K. Ishida, T. Kobayashi, J. Abe, K. Kinjo, K. Motoshima, and K. Kasahara, “A comparative study of DPSK and OOK WDM transmission over transoceanic distances and their performance degradations due to nonlinear phase noise,” J. Lightw. Technol. 21, 1933–1943 (2003).
[Crossref]

Agarwal, A.

A. Agarwal, S. Banerjee, D. F. Grosz, A. P. Küng, D. N. Maywar, A. Gurevich, and T. H. Wood, “Ultra-high-capacity long-haul 40-Gb/s WDM transmission with 0.8-b/s/Hz spectral efficiency by means of strong optical filtering,” IEEE Photon. Technol. Lett. 15, 470–472 (2003).
[Crossref]

Antona, J.-C.

G. Charlet, J.-C. Antona, S. Lannel, P. Tran, W. Idler, M. Gorlier, S. Borne, A. Klekamp, C. Simonneau, L. Pierre, Y. Frignac, M. Molina, F. Beaumont, J.-P. Hamaide, and S. Bigo, “6.4Tb/s (159 × 42.7Gb/s) capacity over 21 × 100 km using bandwidth-limited phase-shaped binary transmission” in Proceedings of the European Conference on Optical Communication (ECOC 2002), paper PD 4.1.

Bakhti, F.

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 of the European Conference on Optical Communication (ECOC 2001), paper We.P40.

Banerjee, S.

A. Agarwal, S. Banerjee, D. F. Grosz, A. P. Küng, D. N. Maywar, A. Gurevich, and T. H. Wood, “Ultra-high-capacity long-haul 40-Gb/s WDM transmission with 0.8-b/s/Hz spectral efficiency by means of strong optical filtering,” IEEE Photon. Technol. Lett. 15, 470–472 (2003).
[Crossref]

Barry, J.

J. Yu, G. K. Chang, J. Barry, and Y. Su, “40 Gbit/s signal format conversion from NRZ to RZ using a Mach-Zehnder delay interferometer,” Opt. Commun. 248, 419–422 (2005).
[Crossref]

Beaumont, F.

G. Charlet, J.-C. Antona, S. Lannel, P. Tran, W. Idler, M. Gorlier, S. Borne, A. Klekamp, C. Simonneau, L. Pierre, Y. Frignac, M. Molina, F. Beaumont, J.-P. Hamaide, and S. Bigo, “6.4Tb/s (159 × 42.7Gb/s) capacity over 21 × 100 km using bandwidth-limited phase-shaped binary transmission” in Proceedings of the European Conference on Optical Communication (ECOC 2002), paper PD 4.1.

Bigo, S.

G. Charlet, J.-C. Antona, S. Lannel, P. Tran, W. Idler, M. Gorlier, S. Borne, A. Klekamp, C. Simonneau, L. Pierre, Y. Frignac, M. Molina, F. Beaumont, J.-P. Hamaide, and S. Bigo, “6.4Tb/s (159 × 42.7Gb/s) capacity over 21 × 100 km using bandwidth-limited phase-shaped binary transmission” in Proceedings of the European Conference on Optical Communication (ECOC 2002), paper PD 4.1.

Bissessur, H.

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 of the European Conference on Optical Communication (ECOC 2001), paper We.P40.

Borne, S.

G. Charlet, J.-C. Antona, S. Lannel, P. Tran, W. Idler, M. Gorlier, S. Borne, A. Klekamp, C. Simonneau, L. Pierre, Y. Frignac, M. Molina, F. Beaumont, J.-P. Hamaide, and S. Bigo, “6.4Tb/s (159 × 42.7Gb/s) capacity over 21 × 100 km using bandwidth-limited phase-shaped binary transmission” in Proceedings of the European Conference on Optical Communication (ECOC 2002), paper PD 4.1.

Brindel, P.

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 of the European Conference on Optical Communication (ECOC 2001), paper We.P40.

Burrows, E.

A. H. Gnauck, G. Raybon, S. Chandrasekhar, J. Leuthold, C. Doerr, L. Stulz, and E. Burrows, “25 × 40-Gb/s copolarized DPSK transmission over 12 × 100-km NZDF with 50-GHz channel spacing,” IEEE Photon. Technol. Lett. 15, 467–469 (2003).
[Crossref]

Burrows, E. C.

A. H. Gnauck, X. Liu, X. Wei, D. M. Gill, and E. C. Burrows, “Comparison of modulation formats for 42.7-Gb/s single-channel transmission through 1980 km of SSMF,” IEEE Photon. Technol. Lett. 16, 909–911 (2004).
[Crossref]

Chandrasekhar, S.

P. J. Winzer, A. H. Gnauck, G. Raybon, S. Chandrasekhar, Y. Su, and J. Leuthold, “40-Gb/s return-to-zero alternate-mark-inversion (RZ-AMI) transmission over 2000 km,” IEEE Photon. Technol. Lett. 15, 766–768 (2003).
[Crossref]

A. H. Gnauck, G. Raybon, S. Chandrasekhar, J. Leuthold, C. Doerr, L. Stulz, and E. Burrows, “25 × 40-Gb/s copolarized DPSK transmission over 12 × 100-km NZDF with 50-GHz channel spacing,” IEEE Photon. Technol. Lett. 15, 467–469 (2003).
[Crossref]

Chang, G. K.

J. Yu, G. K. Chang, J. Barry, and Y. Su, “40 Gbit/s signal format conversion from NRZ to RZ using a Mach-Zehnder delay interferometer,” Opt. Commun. 248, 419–422 (2005).
[Crossref]

Charlet, G.

G. Charlet, J.-C. Antona, S. Lannel, P. Tran, W. Idler, M. Gorlier, S. Borne, A. Klekamp, C. Simonneau, L. Pierre, Y. Frignac, M. Molina, F. Beaumont, J.-P. Hamaide, and S. Bigo, “6.4Tb/s (159 × 42.7Gb/s) capacity over 21 × 100 km using bandwidth-limited phase-shaped binary transmission” in Proceedings of the European Conference on Optical Communication (ECOC 2002), paper PD 4.1.

Chen, M. H.

W. D. Li, M. H. Chen, Y. Dong, and S. Z. Xie, “All-optical format conversion from NRZ to CSRZ and between RZ and CSRZ using SOA-based fiber loop mirror,” IEEE Photon. Technol. Lett. 16, 203–205 (2004).
[Crossref]

Chien, C. -C.

I. Lyubomirsky and C. -C. Chien, “Experimental demonstration of an optimized optical RZ-duobinary transmission system,” IEEE Photon. Technol. Lett. 17, 2757–2759 (2005).
[Crossref]

Christen, L.

Doerr, C.

B. Zhu, L. E. Nelson, S. Stulz, A. H. Gnauck, C. Doerr, J. Leuthold, G. Nielsen, M. O. Pedersen, J. Kim, and R. L. Lingle Jr., “High spectral density long-haul 40-Gb/s transmission using CSRZ-DPSK format,” J. Lightwave Technol. 22, 208–214 (2004).
[Crossref]

A. H. Gnauck, G. Raybon, S. Chandrasekhar, J. Leuthold, C. Doerr, L. Stulz, and E. Burrows, “25 × 40-Gb/s copolarized DPSK transmission over 12 × 100-km NZDF with 50-GHz channel spacing,” IEEE Photon. Technol. Lett. 15, 467–469 (2003).
[Crossref]

B. Zhu, L. E. Nelson, S. Stulz, A. H. Gnauck, C. Doerr, J. Leuthold, L. Gruner-Nielsen, M. O. Pedersen, J. Kim, R. Lingle, Y. Emori, Y. Ohki, N. Tsukiji, A. Oguri, and S. Namiki, “6.4-Tb/s (160 × 42.7 Gb/s) transmission with 0.8 bit/s/Hz spectral efficiency over 32 × 100 km of fiber using CSRZ-DPSK format,” in Optical Fiber Communication Conference, Technical Digest (Optical Society of America, 2003), paper PD19.
[Crossref]

Dong, Y.

W. D. Li, M. H. Chen, Y. Dong, and S. Z. Xie, “All-optical format conversion from NRZ to CSRZ and between RZ and CSRZ using SOA-based fiber loop mirror,” IEEE Photon. Technol. Lett. 16, 203–205 (2004).
[Crossref]

Emori, Y.

B. Zhu, L. E. Nelson, S. Stulz, A. H. Gnauck, C. Doerr, J. Leuthold, L. Gruner-Nielsen, M. O. Pedersen, J. Kim, R. Lingle, Y. Emori, Y. Ohki, N. Tsukiji, A. Oguri, and S. Namiki, “6.4-Tb/s (160 × 42.7 Gb/s) transmission with 0.8 bit/s/Hz spectral efficiency over 32 × 100 km of fiber using CSRZ-DPSK format,” in Optical Fiber Communication Conference, Technical Digest (Optical Society of America, 2003), paper PD19.
[Crossref]

Essiambre, R. -J.

P. J. Winzer and R. -J. Essiambre, “Advanced optical modulation formats,” in Proceedings of the IEEE 94, 952–985 (2006).
[Crossref]

Frignac, Y.

G. Charlet, J.-C. Antona, S. Lannel, P. Tran, W. Idler, M. Gorlier, S. Borne, A. Klekamp, C. Simonneau, L. Pierre, Y. Frignac, M. Molina, F. Beaumont, J.-P. Hamaide, and S. Bigo, “6.4Tb/s (159 × 42.7Gb/s) capacity over 21 × 100 km using bandwidth-limited phase-shaped binary transmission” in Proceedings of the European Conference on Optical Communication (ECOC 2002), paper PD 4.1.

Gill, D. M.

A. H. Gnauck, X. Liu, X. Wei, D. M. Gill, and E. C. Burrows, “Comparison of modulation formats for 42.7-Gb/s single-channel transmission through 1980 km of SSMF,” IEEE Photon. Technol. Lett. 16, 909–911 (2004).
[Crossref]

Gnauck, A. H.

A. H. Gnauck, X. Liu, X. Wei, D. M. Gill, and E. C. Burrows, “Comparison of modulation formats for 42.7-Gb/s single-channel transmission through 1980 km of SSMF,” IEEE Photon. Technol. Lett. 16, 909–911 (2004).
[Crossref]

B. Zhu, L. E. Nelson, S. Stulz, A. H. Gnauck, C. Doerr, J. Leuthold, G. Nielsen, M. O. Pedersen, J. Kim, and R. L. Lingle Jr., “High spectral density long-haul 40-Gb/s transmission using CSRZ-DPSK format,” J. Lightwave Technol. 22, 208–214 (2004).
[Crossref]

A. H. Gnauck, G. Raybon, S. Chandrasekhar, J. Leuthold, C. Doerr, L. Stulz, and E. Burrows, “25 × 40-Gb/s copolarized DPSK transmission over 12 × 100-km NZDF with 50-GHz channel spacing,” IEEE Photon. Technol. Lett. 15, 467–469 (2003).
[Crossref]

P. J. Winzer, A. H. Gnauck, G. Raybon, S. Chandrasekhar, Y. Su, and J. Leuthold, “40-Gb/s return-to-zero alternate-mark-inversion (RZ-AMI) transmission over 2000 km,” IEEE Photon. Technol. Lett. 15, 766–768 (2003).
[Crossref]

B. Zhu, L. E. Nelson, S. Stulz, A. H. Gnauck, C. Doerr, J. Leuthold, L. Gruner-Nielsen, M. O. Pedersen, J. Kim, R. Lingle, Y. Emori, Y. Ohki, N. Tsukiji, A. Oguri, and S. Namiki, “6.4-Tb/s (160 × 42.7 Gb/s) transmission with 0.8 bit/s/Hz spectral efficiency over 32 × 100 km of fiber using CSRZ-DPSK format,” in Optical Fiber Communication Conference, Technical Digest (Optical Society of America, 2003), paper PD19.
[Crossref]

Gohin, E.

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 of the European Conference on Optical Communication (ECOC 2001), paper We.P40.

Gorlier, M.

G. Charlet, J.-C. Antona, S. Lannel, P. Tran, W. Idler, M. Gorlier, S. Borne, A. Klekamp, C. Simonneau, L. Pierre, Y. Frignac, M. Molina, F. Beaumont, J.-P. Hamaide, and S. Bigo, “6.4Tb/s (159 × 42.7Gb/s) capacity over 21 × 100 km using bandwidth-limited phase-shaped binary transmission” in Proceedings of the European Conference on Optical Communication (ECOC 2002), paper PD 4.1.

Grosz, D. F.

A. Agarwal, S. Banerjee, D. F. Grosz, A. P. Küng, D. N. Maywar, A. Gurevich, and T. H. Wood, “Ultra-high-capacity long-haul 40-Gb/s WDM transmission with 0.8-b/s/Hz spectral efficiency by means of strong optical filtering,” IEEE Photon. Technol. Lett. 15, 470–472 (2003).
[Crossref]

Gruner-Nielsen, L.

B. Zhu, L. E. Nelson, S. Stulz, A. H. Gnauck, C. Doerr, J. Leuthold, L. Gruner-Nielsen, M. O. Pedersen, J. Kim, R. Lingle, Y. Emori, Y. Ohki, N. Tsukiji, A. Oguri, and S. Namiki, “6.4-Tb/s (160 × 42.7 Gb/s) transmission with 0.8 bit/s/Hz spectral efficiency over 32 × 100 km of fiber using CSRZ-DPSK format,” in Optical Fiber Communication Conference, Technical Digest (Optical Society of America, 2003), paper PD19.
[Crossref]

Gurevich, A.

A. Agarwal, S. Banerjee, D. F. Grosz, A. P. Küng, D. N. Maywar, A. Gurevich, and T. H. Wood, “Ultra-high-capacity long-haul 40-Gb/s WDM transmission with 0.8-b/s/Hz spectral efficiency by means of strong optical filtering,” IEEE Photon. Technol. Lett. 15, 470–472 (2003).
[Crossref]

Hamaide, J.-P.

G. Charlet, J.-C. Antona, S. Lannel, P. Tran, W. Idler, M. Gorlier, S. Borne, A. Klekamp, C. Simonneau, L. Pierre, Y. Frignac, M. Molina, F. Beaumont, J.-P. Hamaide, and S. Bigo, “6.4Tb/s (159 × 42.7Gb/s) capacity over 21 × 100 km using bandwidth-limited phase-shaped binary transmission” in Proceedings of the European Conference on Optical Communication (ECOC 2002), paper PD 4.1.

Huang, D.

Hwang, S.

H. Lee, J. Lee, H. Kim, S. K. Kim, G. Lee, S. Hwang, Y. Oh, and J. Jeong, “300 km transmission of 10 Gbit/s chirped duobinary signals using two Mach-Zehnder modulators,” Electron. Lett. 41, 202–203 (2005).
[Crossref]

Idler, W.

G. Charlet, J.-C. Antona, S. Lannel, P. Tran, W. Idler, M. Gorlier, S. Borne, A. Klekamp, C. Simonneau, L. Pierre, Y. Frignac, M. Molina, F. Beaumont, J.-P. Hamaide, and S. Bigo, “6.4Tb/s (159 × 42.7Gb/s) capacity over 21 × 100 km using bandwidth-limited phase-shaped binary transmission” in Proceedings of the European Conference on Optical Communication (ECOC 2002), paper PD 4.1.

Ishida, K.

T. Mizuochi, K. Ishida, T. Kobayashi, J. Abe, K. Kinjo, K. Motoshima, and K. Kasahara, “A comparative study of DPSK and OOK WDM transmission over transoceanic distances and their performance degradations due to nonlinear phase noise,” J. Lightw. Technol. 21, 1933–1943 (2003).
[Crossref]

Jeong, J.

H. Lee, J. Lee, H. Kim, S. K. Kim, G. Lee, S. Hwang, Y. Oh, and J. Jeong, “300 km transmission of 10 Gbit/s chirped duobinary signals using two Mach-Zehnder modulators,” Electron. Lett. 41, 202–203 (2005).
[Crossref]

Kasahara, K.

T. Mizuochi, K. Ishida, T. Kobayashi, J. Abe, K. Kinjo, K. Motoshima, and K. Kasahara, “A comparative study of DPSK and OOK WDM transmission over transoceanic distances and their performance degradations due to nonlinear phase noise,” J. Lightw. Technol. 21, 1933–1943 (2003).
[Crossref]

Kashyap, R.

Kim, H.

H. Lee, J. Lee, H. Kim, S. K. Kim, G. Lee, S. Hwang, Y. Oh, and J. Jeong, “300 km transmission of 10 Gbit/s chirped duobinary signals using two Mach-Zehnder modulators,” Electron. Lett. 41, 202–203 (2005).
[Crossref]

Kim, J.

B. Zhu, L. E. Nelson, S. Stulz, A. H. Gnauck, C. Doerr, J. Leuthold, G. Nielsen, M. O. Pedersen, J. Kim, and R. L. Lingle Jr., “High spectral density long-haul 40-Gb/s transmission using CSRZ-DPSK format,” J. Lightwave Technol. 22, 208–214 (2004).
[Crossref]

B. Zhu, L. E. Nelson, S. Stulz, A. H. Gnauck, C. Doerr, J. Leuthold, L. Gruner-Nielsen, M. O. Pedersen, J. Kim, R. Lingle, Y. Emori, Y. Ohki, N. Tsukiji, A. Oguri, and S. Namiki, “6.4-Tb/s (160 × 42.7 Gb/s) transmission with 0.8 bit/s/Hz spectral efficiency over 32 × 100 km of fiber using CSRZ-DPSK format,” in Optical Fiber Communication Conference, Technical Digest (Optical Society of America, 2003), paper PD19.
[Crossref]

Kim, S. K.

H. Lee, J. Lee, H. Kim, S. K. Kim, G. Lee, S. Hwang, Y. Oh, and J. Jeong, “300 km transmission of 10 Gbit/s chirped duobinary signals using two Mach-Zehnder modulators,” Electron. Lett. 41, 202–203 (2005).
[Crossref]

Kinjo, K.

T. Mizuochi, K. Ishida, T. Kobayashi, J. Abe, K. Kinjo, K. Motoshima, and K. Kasahara, “A comparative study of DPSK and OOK WDM transmission over transoceanic distances and their performance degradations due to nonlinear phase noise,” J. Lightw. Technol. 21, 1933–1943 (2003).
[Crossref]

Klekamp, A.

G. Charlet, J.-C. Antona, S. Lannel, P. Tran, W. Idler, M. Gorlier, S. Borne, A. Klekamp, C. Simonneau, L. Pierre, Y. Frignac, M. Molina, F. Beaumont, J.-P. Hamaide, and S. Bigo, “6.4Tb/s (159 × 42.7Gb/s) capacity over 21 × 100 km using bandwidth-limited phase-shaped binary transmission” in Proceedings of the European Conference on Optical Communication (ECOC 2002), paper PD 4.1.

Kobayashi, T.

T. Mizuochi, K. Ishida, T. Kobayashi, J. Abe, K. Kinjo, K. Motoshima, and K. Kasahara, “A comparative study of DPSK and OOK WDM transmission over transoceanic distances and their performance degradations due to nonlinear phase noise,” J. Lightw. Technol. 21, 1933–1943 (2003).
[Crossref]

Küng, A. P.

A. Agarwal, S. Banerjee, D. F. Grosz, A. P. Küng, D. N. Maywar, A. Gurevich, and T. H. Wood, “Ultra-high-capacity long-haul 40-Gb/s WDM transmission with 0.8-b/s/Hz spectral efficiency by means of strong optical filtering,” IEEE Photon. Technol. Lett. 15, 470–472 (2003).
[Crossref]

Lannel, S.

G. Charlet, J.-C. Antona, S. Lannel, P. Tran, W. Idler, M. Gorlier, S. Borne, A. Klekamp, C. Simonneau, L. Pierre, Y. Frignac, M. Molina, F. Beaumont, J.-P. Hamaide, and S. Bigo, “6.4Tb/s (159 × 42.7Gb/s) capacity over 21 × 100 km using bandwidth-limited phase-shaped binary transmission” in Proceedings of the European Conference on Optical Communication (ECOC 2002), paper PD 4.1.

Lee, G.

H. Lee, J. Lee, H. Kim, S. K. Kim, G. Lee, S. Hwang, Y. Oh, and J. Jeong, “300 km transmission of 10 Gbit/s chirped duobinary signals using two Mach-Zehnder modulators,” Electron. Lett. 41, 202–203 (2005).
[Crossref]

Lee, H.

H. Lee, J. Lee, H. Kim, S. K. Kim, G. Lee, S. Hwang, Y. Oh, and J. Jeong, “300 km transmission of 10 Gbit/s chirped duobinary signals using two Mach-Zehnder modulators,” Electron. Lett. 41, 202–203 (2005).
[Crossref]

Lee, J.

H. Lee, J. Lee, H. Kim, S. K. Kim, G. Lee, S. Hwang, Y. Oh, and J. Jeong, “300 km transmission of 10 Gbit/s chirped duobinary signals using two Mach-Zehnder modulators,” Electron. Lett. 41, 202–203 (2005).
[Crossref]

Leuthold, J.

B. Zhu, L. E. Nelson, S. Stulz, A. H. Gnauck, C. Doerr, J. Leuthold, G. Nielsen, M. O. Pedersen, J. Kim, and R. L. Lingle Jr., “High spectral density long-haul 40-Gb/s transmission using CSRZ-DPSK format,” J. Lightwave Technol. 22, 208–214 (2004).
[Crossref]

A. H. Gnauck, G. Raybon, S. Chandrasekhar, J. Leuthold, C. Doerr, L. Stulz, and E. Burrows, “25 × 40-Gb/s copolarized DPSK transmission over 12 × 100-km NZDF with 50-GHz channel spacing,” IEEE Photon. Technol. Lett. 15, 467–469 (2003).
[Crossref]

P. J. Winzer, A. H. Gnauck, G. Raybon, S. Chandrasekhar, Y. Su, and J. Leuthold, “40-Gb/s return-to-zero alternate-mark-inversion (RZ-AMI) transmission over 2000 km,” IEEE Photon. Technol. Lett. 15, 766–768 (2003).
[Crossref]

B. Zhu, L. E. Nelson, S. Stulz, A. H. Gnauck, C. Doerr, J. Leuthold, L. Gruner-Nielsen, M. O. Pedersen, J. Kim, R. Lingle, Y. Emori, Y. Ohki, N. Tsukiji, A. Oguri, and S. Namiki, “6.4-Tb/s (160 × 42.7 Gb/s) transmission with 0.8 bit/s/Hz spectral efficiency over 32 × 100 km of fiber using CSRZ-DPSK format,” in Optical Fiber Communication Conference, Technical Digest (Optical Society of America, 2003), paper PD19.
[Crossref]

Li, W. D.

W. D. Li, M. H. Chen, Y. Dong, and S. Z. Xie, “All-optical format conversion from NRZ to CSRZ and between RZ and CSRZ using SOA-based fiber loop mirror,” IEEE Photon. Technol. Lett. 16, 203–205 (2004).
[Crossref]

Lingle, R.

B. Zhu, L. E. Nelson, S. Stulz, A. H. Gnauck, C. Doerr, J. Leuthold, L. Gruner-Nielsen, M. O. Pedersen, J. Kim, R. Lingle, Y. Emori, Y. Ohki, N. Tsukiji, A. Oguri, and S. Namiki, “6.4-Tb/s (160 × 42.7 Gb/s) transmission with 0.8 bit/s/Hz spectral efficiency over 32 × 100 km of fiber using CSRZ-DPSK format,” in Optical Fiber Communication Conference, Technical Digest (Optical Society of America, 2003), paper PD19.
[Crossref]

Lingle Jr., R. L.

Liu, X.

A. H. Gnauck, X. Liu, X. Wei, D. M. Gill, and E. C. Burrows, “Comparison of modulation formats for 42.7-Gb/s single-channel transmission through 1980 km of SSMF,” IEEE Photon. Technol. Lett. 16, 909–911 (2004).
[Crossref]

Lizé, Y. K.

Lyubomirsky, I.

I. Lyubomirsky and C. -C. Chien, “Experimental demonstration of an optimized optical RZ-duobinary transmission system,” IEEE Photon. Technol. Lett. 17, 2757–2759 (2005).
[Crossref]

Maywar, D. N.

A. Agarwal, S. Banerjee, D. F. Grosz, A. P. Küng, D. N. Maywar, A. Gurevich, and T. H. Wood, “Ultra-high-capacity long-haul 40-Gb/s WDM transmission with 0.8-b/s/Hz spectral efficiency by means of strong optical filtering,” IEEE Photon. Technol. Lett. 15, 470–472 (2003).
[Crossref]

Mizuochi, T.

T. Mizuochi, K. Ishida, T. Kobayashi, J. Abe, K. Kinjo, K. Motoshima, and K. Kasahara, “A comparative study of DPSK and OOK WDM transmission over transoceanic distances and their performance degradations due to nonlinear phase noise,” J. Lightw. Technol. 21, 1933–1943 (2003).
[Crossref]

Molina, M.

G. Charlet, J.-C. Antona, S. Lannel, P. Tran, W. Idler, M. Gorlier, S. Borne, A. Klekamp, C. Simonneau, L. Pierre, Y. Frignac, M. Molina, F. Beaumont, J.-P. Hamaide, and S. Bigo, “6.4Tb/s (159 × 42.7Gb/s) capacity over 21 × 100 km using bandwidth-limited phase-shaped binary transmission” in Proceedings of the European Conference on Optical Communication (ECOC 2002), paper PD 4.1.

Moller, L.

C. Xie, L. Moller, and R. Ryf, “Improvement of optical NRZ- and RZ-duobinary transmission systems with narrow bandwidth optical filters,” IEEE Photon. Technol. Lett. 16, 2162–2164 (2004).
[Crossref]

Motoshima, K.

T. Mizuochi, K. Ishida, T. Kobayashi, J. Abe, K. Kinjo, K. Motoshima, and K. Kasahara, “A comparative study of DPSK and OOK WDM transmission over transoceanic distances and their performance degradations due to nonlinear phase noise,” J. Lightw. Technol. 21, 1933–1943 (2003).
[Crossref]

Namiki, S.

B. Zhu, L. E. Nelson, S. Stulz, A. H. Gnauck, C. Doerr, J. Leuthold, L. Gruner-Nielsen, M. O. Pedersen, J. Kim, R. Lingle, Y. Emori, Y. Ohki, N. Tsukiji, A. Oguri, and S. Namiki, “6.4-Tb/s (160 × 42.7 Gb/s) transmission with 0.8 bit/s/Hz spectral efficiency over 32 × 100 km of fiber using CSRZ-DPSK format,” in Optical Fiber Communication Conference, Technical Digest (Optical Society of America, 2003), paper PD19.
[Crossref]

Nelson, L. E.

B. Zhu, L. E. Nelson, S. Stulz, A. H. Gnauck, C. Doerr, J. Leuthold, G. Nielsen, M. O. Pedersen, J. Kim, and R. L. Lingle Jr., “High spectral density long-haul 40-Gb/s transmission using CSRZ-DPSK format,” J. Lightwave Technol. 22, 208–214 (2004).
[Crossref]

B. Zhu, L. E. Nelson, S. Stulz, A. H. Gnauck, C. Doerr, J. Leuthold, L. Gruner-Nielsen, M. O. Pedersen, J. Kim, R. Lingle, Y. Emori, Y. Ohki, N. Tsukiji, A. Oguri, and S. Namiki, “6.4-Tb/s (160 × 42.7 Gb/s) transmission with 0.8 bit/s/Hz spectral efficiency over 32 × 100 km of fiber using CSRZ-DPSK format,” in Optical Fiber Communication Conference, Technical Digest (Optical Society of America, 2003), paper PD19.
[Crossref]

Nielsen, G.

Nuccio, S.

Oguri, A.

B. Zhu, L. E. Nelson, S. Stulz, A. H. Gnauck, C. Doerr, J. Leuthold, L. Gruner-Nielsen, M. O. Pedersen, J. Kim, R. Lingle, Y. Emori, Y. Ohki, N. Tsukiji, A. Oguri, and S. Namiki, “6.4-Tb/s (160 × 42.7 Gb/s) transmission with 0.8 bit/s/Hz spectral efficiency over 32 × 100 km of fiber using CSRZ-DPSK format,” in Optical Fiber Communication Conference, Technical Digest (Optical Society of America, 2003), paper PD19.
[Crossref]

Oh, Y.

H. Lee, J. Lee, H. Kim, S. K. Kim, G. Lee, S. Hwang, Y. Oh, and J. Jeong, “300 km transmission of 10 Gbit/s chirped duobinary signals using two Mach-Zehnder modulators,” Electron. Lett. 41, 202–203 (2005).
[Crossref]

Ohki, Y.

B. Zhu, L. E. Nelson, S. Stulz, A. H. Gnauck, C. Doerr, J. Leuthold, L. Gruner-Nielsen, M. O. Pedersen, J. Kim, R. Lingle, Y. Emori, Y. Ohki, N. Tsukiji, A. Oguri, and S. Namiki, “6.4-Tb/s (160 × 42.7 Gb/s) transmission with 0.8 bit/s/Hz spectral efficiency over 32 × 100 km of fiber using CSRZ-DPSK format,” in Optical Fiber Communication Conference, Technical Digest (Optical Society of America, 2003), paper PD19.
[Crossref]

Pedersen, M. O.

B. Zhu, L. E. Nelson, S. Stulz, A. H. Gnauck, C. Doerr, J. Leuthold, G. Nielsen, M. O. Pedersen, J. Kim, and R. L. Lingle Jr., “High spectral density long-haul 40-Gb/s transmission using CSRZ-DPSK format,” J. Lightwave Technol. 22, 208–214 (2004).
[Crossref]

B. Zhu, L. E. Nelson, S. Stulz, A. H. Gnauck, C. Doerr, J. Leuthold, L. Gruner-Nielsen, M. O. Pedersen, J. Kim, R. Lingle, Y. Emori, Y. Ohki, N. Tsukiji, A. Oguri, and S. Namiki, “6.4-Tb/s (160 × 42.7 Gb/s) transmission with 0.8 bit/s/Hz spectral efficiency over 32 × 100 km of fiber using CSRZ-DPSK format,” in Optical Fiber Communication Conference, Technical Digest (Optical Society of America, 2003), paper PD19.
[Crossref]

Penninckx, D.

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 of the European Conference on Optical Communication (ECOC 2001), paper We.P40.

Pierre, L.

G. Charlet, J.-C. Antona, S. Lannel, P. Tran, W. Idler, M. Gorlier, S. Borne, A. Klekamp, C. Simonneau, L. Pierre, Y. Frignac, M. Molina, F. Beaumont, J.-P. Hamaide, and S. Bigo, “6.4Tb/s (159 × 42.7Gb/s) capacity over 21 × 100 km using bandwidth-limited phase-shaped binary transmission” in Proceedings of the European Conference on Optical Communication (ECOC 2002), paper PD 4.1.

Raybon, G.

A. H. Gnauck, G. Raybon, S. Chandrasekhar, J. Leuthold, C. Doerr, L. Stulz, and E. Burrows, “25 × 40-Gb/s copolarized DPSK transmission over 12 × 100-km NZDF with 50-GHz channel spacing,” IEEE Photon. Technol. Lett. 15, 467–469 (2003).
[Crossref]

P. J. Winzer, A. H. Gnauck, G. Raybon, S. Chandrasekhar, Y. Su, and J. Leuthold, “40-Gb/s return-to-zero alternate-mark-inversion (RZ-AMI) transmission over 2000 km,” IEEE Photon. Technol. Lett. 15, 766–768 (2003).
[Crossref]

Ryf, R.

C. Xie, L. Moller, and R. Ryf, “Improvement of optical NRZ- and RZ-duobinary transmission systems with narrow bandwidth optical filters,” IEEE Photon. Technol. Lett. 16, 2162–2164 (2004).
[Crossref]

Simonneau, C.

G. Charlet, J.-C. Antona, S. Lannel, P. Tran, W. Idler, M. Gorlier, S. Borne, A. Klekamp, C. Simonneau, L. Pierre, Y. Frignac, M. Molina, F. Beaumont, J.-P. Hamaide, and S. Bigo, “6.4Tb/s (159 × 42.7Gb/s) capacity over 21 × 100 km using bandwidth-limited phase-shaped binary transmission” in Proceedings of the European Conference on Optical Communication (ECOC 2002), paper PD 4.1.

Stulz, L.

A. H. Gnauck, G. Raybon, S. Chandrasekhar, J. Leuthold, C. Doerr, L. Stulz, and E. Burrows, “25 × 40-Gb/s copolarized DPSK transmission over 12 × 100-km NZDF with 50-GHz channel spacing,” IEEE Photon. Technol. Lett. 15, 467–469 (2003).
[Crossref]

Stulz, S.

B. Zhu, L. E. Nelson, S. Stulz, A. H. Gnauck, C. Doerr, J. Leuthold, G. Nielsen, M. O. Pedersen, J. Kim, and R. L. Lingle Jr., “High spectral density long-haul 40-Gb/s transmission using CSRZ-DPSK format,” J. Lightwave Technol. 22, 208–214 (2004).
[Crossref]

B. Zhu, L. E. Nelson, S. Stulz, A. H. Gnauck, C. Doerr, J. Leuthold, L. Gruner-Nielsen, M. O. Pedersen, J. Kim, R. Lingle, Y. Emori, Y. Ohki, N. Tsukiji, A. Oguri, and S. Namiki, “6.4-Tb/s (160 × 42.7 Gb/s) transmission with 0.8 bit/s/Hz spectral efficiency over 32 × 100 km of fiber using CSRZ-DPSK format,” in Optical Fiber Communication Conference, Technical Digest (Optical Society of America, 2003), paper PD19.
[Crossref]

Su, Y.

J. Yu, G. K. Chang, J. Barry, and Y. Su, “40 Gbit/s signal format conversion from NRZ to RZ using a Mach-Zehnder delay interferometer,” Opt. Commun. 248, 419–422 (2005).
[Crossref]

P. J. Winzer, A. H. Gnauck, G. Raybon, S. Chandrasekhar, Y. Su, and J. Leuthold, “40-Gb/s return-to-zero alternate-mark-inversion (RZ-AMI) transmission over 2000 km,” IEEE Photon. Technol. Lett. 15, 766–768 (2003).
[Crossref]

Tran, P.

G. Charlet, J.-C. Antona, S. Lannel, P. Tran, W. Idler, M. Gorlier, S. Borne, A. Klekamp, C. Simonneau, L. Pierre, Y. Frignac, M. Molina, F. Beaumont, J.-P. Hamaide, and S. Bigo, “6.4Tb/s (159 × 42.7Gb/s) capacity over 21 × 100 km using bandwidth-limited phase-shaped binary transmission” in Proceedings of the European Conference on Optical Communication (ECOC 2002), paper PD 4.1.

Tsukiji, N.

B. Zhu, L. E. Nelson, S. Stulz, A. H. Gnauck, C. Doerr, J. Leuthold, L. Gruner-Nielsen, M. O. Pedersen, J. Kim, R. Lingle, Y. Emori, Y. Ohki, N. Tsukiji, A. Oguri, and S. Namiki, “6.4-Tb/s (160 × 42.7 Gb/s) transmission with 0.8 bit/s/Hz spectral efficiency over 32 × 100 km of fiber using CSRZ-DPSK format,” in Optical Fiber Communication Conference, Technical Digest (Optical Society of America, 2003), paper PD19.
[Crossref]

Wei, X.

A. H. Gnauck, X. Liu, X. Wei, D. M. Gill, and E. C. Burrows, “Comparison of modulation formats for 42.7-Gb/s single-channel transmission through 1980 km of SSMF,” IEEE Photon. Technol. Lett. 16, 909–911 (2004).
[Crossref]

Willner, A. E.

Winzer, P. J.

P. J. Winzer and R. -J. Essiambre, “Advanced optical modulation formats,” in Proceedings of the IEEE 94, 952–985 (2006).
[Crossref]

P. J. Winzer, A. H. Gnauck, G. Raybon, S. Chandrasekhar, Y. Su, and J. Leuthold, “40-Gb/s return-to-zero alternate-mark-inversion (RZ-AMI) transmission over 2000 km,” IEEE Photon. Technol. Lett. 15, 766–768 (2003).
[Crossref]

Wood, T. H.

A. Agarwal, S. Banerjee, D. F. Grosz, A. P. Küng, D. N. Maywar, A. Gurevich, and T. H. Wood, “Ultra-high-capacity long-haul 40-Gb/s WDM transmission with 0.8-b/s/Hz spectral efficiency by means of strong optical filtering,” IEEE Photon. Technol. Lett. 15, 470–472 (2003).
[Crossref]

Wu, T.

Wu, X.

Xie, C.

C. Xie, L. Moller, and R. Ryf, “Improvement of optical NRZ- and RZ-duobinary transmission systems with narrow bandwidth optical filters,” IEEE Photon. Technol. Lett. 16, 2162–2164 (2004).
[Crossref]

Xie, S. Z.

W. D. Li, M. H. Chen, Y. Dong, and S. Z. Xie, “All-optical format conversion from NRZ to CSRZ and between RZ and CSRZ using SOA-based fiber loop mirror,” IEEE Photon. Technol. Lett. 16, 203–205 (2004).
[Crossref]

Yang, J. -Y.

Yu, J.

J. Yu, G. K. Chang, J. Barry, and Y. Su, “40 Gbit/s signal format conversion from NRZ to RZ using a Mach-Zehnder delay interferometer,” Opt. Commun. 248, 419–422 (2005).
[Crossref]

Yu, Y.

Zhang, X.

Zhu, B.

B. Zhu, L. E. Nelson, S. Stulz, A. H. Gnauck, C. Doerr, J. Leuthold, G. Nielsen, M. O. Pedersen, J. Kim, and R. L. Lingle Jr., “High spectral density long-haul 40-Gb/s transmission using CSRZ-DPSK format,” J. Lightwave Technol. 22, 208–214 (2004).
[Crossref]

B. Zhu, L. E. Nelson, S. Stulz, A. H. Gnauck, C. Doerr, J. Leuthold, L. Gruner-Nielsen, M. O. Pedersen, J. Kim, R. Lingle, Y. Emori, Y. Ohki, N. Tsukiji, A. Oguri, and S. Namiki, “6.4-Tb/s (160 × 42.7 Gb/s) transmission with 0.8 bit/s/Hz spectral efficiency over 32 × 100 km of fiber using CSRZ-DPSK format,” in Optical Fiber Communication Conference, Technical Digest (Optical Society of America, 2003), paper PD19.
[Crossref]

Electron. Lett. (1)

H. Lee, J. Lee, H. Kim, S. K. Kim, G. Lee, S. Hwang, Y. Oh, and J. Jeong, “300 km transmission of 10 Gbit/s chirped duobinary signals using two Mach-Zehnder modulators,” Electron. Lett. 41, 202–203 (2005).
[Crossref]

IEEE Photon. Technol. Lett. (7)

A. Agarwal, S. Banerjee, D. F. Grosz, A. P. Küng, D. N. Maywar, A. Gurevich, and T. H. Wood, “Ultra-high-capacity long-haul 40-Gb/s WDM transmission with 0.8-b/s/Hz spectral efficiency by means of strong optical filtering,” IEEE Photon. Technol. Lett. 15, 470–472 (2003).
[Crossref]

A. H. Gnauck, X. Liu, X. Wei, D. M. Gill, and E. C. Burrows, “Comparison of modulation formats for 42.7-Gb/s single-channel transmission through 1980 km of SSMF,” IEEE Photon. Technol. Lett. 16, 909–911 (2004).
[Crossref]

P. J. Winzer, A. H. Gnauck, G. Raybon, S. Chandrasekhar, Y. Su, and J. Leuthold, “40-Gb/s return-to-zero alternate-mark-inversion (RZ-AMI) transmission over 2000 km,” IEEE Photon. Technol. Lett. 15, 766–768 (2003).
[Crossref]

A. H. Gnauck, G. Raybon, S. Chandrasekhar, J. Leuthold, C. Doerr, L. Stulz, and E. Burrows, “25 × 40-Gb/s copolarized DPSK transmission over 12 × 100-km NZDF with 50-GHz channel spacing,” IEEE Photon. Technol. Lett. 15, 467–469 (2003).
[Crossref]

C. Xie, L. Moller, and R. Ryf, “Improvement of optical NRZ- and RZ-duobinary transmission systems with narrow bandwidth optical filters,” IEEE Photon. Technol. Lett. 16, 2162–2164 (2004).
[Crossref]

I. Lyubomirsky and C. -C. Chien, “Experimental demonstration of an optimized optical RZ-duobinary transmission system,” IEEE Photon. Technol. Lett. 17, 2757–2759 (2005).
[Crossref]

W. D. Li, M. H. Chen, Y. Dong, and S. Z. Xie, “All-optical format conversion from NRZ to CSRZ and between RZ and CSRZ using SOA-based fiber loop mirror,” IEEE Photon. Technol. Lett. 16, 203–205 (2004).
[Crossref]

in Proceedings of the IEEE (1)

P. J. Winzer and R. -J. Essiambre, “Advanced optical modulation formats,” in Proceedings of the IEEE 94, 952–985 (2006).
[Crossref]

J. Lightw. Technol. (1)

T. Mizuochi, K. Ishida, T. Kobayashi, J. Abe, K. Kinjo, K. Motoshima, and K. Kasahara, “A comparative study of DPSK and OOK WDM transmission over transoceanic distances and their performance degradations due to nonlinear phase noise,” J. Lightw. Technol. 21, 1933–1943 (2003).
[Crossref]

J. Lightwave Technol. (1)

Opt. Commun. (1)

J. Yu, G. K. Chang, J. Barry, and Y. Su, “40 Gbit/s signal format conversion from NRZ to RZ using a Mach-Zehnder delay interferometer,” Opt. Commun. 248, 419–422 (2005).
[Crossref]

Opt. Express (2)

Other (3)

G. Charlet, J.-C. Antona, S. Lannel, P. Tran, W. Idler, M. Gorlier, S. Borne, A. Klekamp, C. Simonneau, L. Pierre, Y. Frignac, M. Molina, F. Beaumont, J.-P. Hamaide, and S. Bigo, “6.4Tb/s (159 × 42.7Gb/s) capacity over 21 × 100 km using bandwidth-limited phase-shaped binary transmission” in Proceedings of the European Conference on Optical Communication (ECOC 2002), paper PD 4.1.

B. Zhu, L. E. Nelson, S. Stulz, A. H. Gnauck, C. Doerr, J. Leuthold, L. Gruner-Nielsen, M. O. Pedersen, J. Kim, R. Lingle, Y. Emori, Y. Ohki, N. Tsukiji, A. Oguri, and S. Namiki, “6.4-Tb/s (160 × 42.7 Gb/s) transmission with 0.8 bit/s/Hz spectral efficiency over 32 × 100 km of fiber using CSRZ-DPSK format,” in Optical Fiber Communication Conference, Technical Digest (Optical Society of America, 2003), paper PD19.
[Crossref]

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 of the European Conference on Optical Communication (ECOC 2001), paper We.P40.

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Figures (6)

Fig. 1.
Fig. 1.

Relations among (N)RZ, CSRZ, Duobinary, AMI, and DPSK.

Fig. 2.
Fig. 2.

Experimental setup of CSRZ to Duobinary conversion. CW: Continuous wave; PC: Polarization controller.

Fig. 3.
Fig. 3.

Experimental results of CSRZ to Duobinary conversion. (a), (b) Optical eye diagrams of CSRZ and Duobinary, respectively; (c), (d) Electrical eye diagrams of detected CSRZ and Duobinary, respectively; (e), (f) Optical spectra of CSRZ and Duobinary, respectively. Spectrum resolution: 0.07 nm.

Fig. 4.
Fig. 4.

Demonstration of some typical patterns. (a), (b), and (c): Input CSRZ data; (d), (e), and (f): Converted Duobinary signals.

Fig. 5.
Fig. 5.

BER curves of CSRZ and Duobinary.

Fig. 6.
Fig. 6.

Conceptual illustration of <1 bit delay

Equations (1)

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( 1 ) n D ( n ) + ( 1 ) ( n + 1 ) D ( n + 1 ) = ( D ( n ) D ( n + 1 ) ) × ( 1 ) n .

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