Abstract

Simulation studies on the effects of the modulation line codes and WDM wavelengths of the dual-drive Mach-Zehnder modulator are presented. The two coding formats considered are non-return-to-zero (NRZ) and return-to-zero (RZ) operating at 10 and 40 Gbit/s within a wavelength range of 1548-1553 nm. The transmission performance of the compensated system has been evaluated. The results of Q-factor and bit-error-rate (BER) diagrams have shown that NRZ codes are much less affected by the detuning of the WDM wavelengths than the RZ format.

© 2003 Optical Society of America

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References

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  1. M. Kolesik, M. Matus, and J. V. Moloney, "All-optical Mach-Zehnder-interferometer-based demultiplexer, a computer simulation study," IEEE Photon. Technol. Lett. 15, 78-80 (2003).
  2. H. Kim and A. H. Gnauck, "Chirp characteristics of dual-drive Mach-Zehnder modulator with a finite dc extinction ratio," IEEE Photon. Technol. Lett. 14, 298-300 (2002).
  3. S. Evangelides, "Tutorial on NRZ, RZ, or soliton: modulation format, your choice of the fiber," in Conference on Integrated Optics and Optical Fiber Communication (OFC/IOOC'99) (Optical Society of America, Washington, D.C., 1999), Vol. 2, pp. 194-194.
  4. R. Khosravani and A. E. Willer, "Comparison of different modulation formats in terrestrial systems with high polarization mode dispersion," in Optical Fiber Communication (OFC 2000), Vol. 37 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 2000), pp. 201-203.
  5. C. Caspar, H.-M. Foisal, A. Gladish, N. Hanik, F. Küppers, R. Ludwig, A. Mattheus, W. Pieper, B. Strebel, and H. G. Weber, "RZ versus NRZ modulation format for dispersion compensated SMF-based 10-Gb/s transmission with more than 100-km amplifier spacing," IEEE Photon. Technol. Lett. 11, 481-483 (1999).
  6. G. L. Li and P. K. L. Yu, "Optical intensity modulators for digital and analog applications," J. Lightwave Technol. 21, 210-230 (2003).
  7. S. Dubovitsky, S. Yegnanarayanan, and B. Jalali, "Analysis and improvement of Mach-Zehnder modulator linearity performance for chirped and tunable optical carriers," J. Lightwave Technol. 20, 886-891 (2002).
  8. S. K. Kim, J. Lee, and J. Jeong, "Transmission performance of 10-Gb/s optical duobinary transmission systems considering adjustable chirp of nonideal LiNbO3 Mach-Zehnder modulators due to applied voltage ratio and filter bandwidth," J. Lightwave Technol. 19, 465-470 (2001).

IEEE Photon. Technol. Lett. (3)

C. Caspar, H.-M. Foisal, A. Gladish, N. Hanik, F. Küppers, R. Ludwig, A. Mattheus, W. Pieper, B. Strebel, and H. G. Weber, "RZ versus NRZ modulation format for dispersion compensated SMF-based 10-Gb/s transmission with more than 100-km amplifier spacing," IEEE Photon. Technol. Lett. 11, 481-483 (1999).

M. Kolesik, M. Matus, and J. V. Moloney, "All-optical Mach-Zehnder-interferometer-based demultiplexer, a computer simulation study," IEEE Photon. Technol. Lett. 15, 78-80 (2003).

H. Kim and A. H. Gnauck, "Chirp characteristics of dual-drive Mach-Zehnder modulator with a finite dc extinction ratio," IEEE Photon. Technol. Lett. 14, 298-300 (2002).

J. Lightwave Technol. (3)

G. L. Li and P. K. L. Yu, "Optical intensity modulators for digital and analog applications," J. Lightwave Technol. 21, 210-230 (2003).

S. Dubovitsky, S. Yegnanarayanan, and B. Jalali, "Analysis and improvement of Mach-Zehnder modulator linearity performance for chirped and tunable optical carriers," J. Lightwave Technol. 20, 886-891 (2002).

S. K. Kim, J. Lee, and J. Jeong, "Transmission performance of 10-Gb/s optical duobinary transmission systems considering adjustable chirp of nonideal LiNbO3 Mach-Zehnder modulators due to applied voltage ratio and filter bandwidth," J. Lightwave Technol. 19, 465-470 (2001).

OFC 2000 (1)

R. Khosravani and A. E. Willer, "Comparison of different modulation formats in terrestrial systems with high polarization mode dispersion," in Optical Fiber Communication (OFC 2000), Vol. 37 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 2000), pp. 201-203.

OFC/IOOC'99 (1)

S. Evangelides, "Tutorial on NRZ, RZ, or soliton: modulation format, your choice of the fiber," in Conference on Integrated Optics and Optical Fiber Communication (OFC/IOOC'99) (Optical Society of America, Washington, D.C., 1999), Vol. 2, pp. 194-194.

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