Abstract

We study the effects of different mechanisms inducing chirp in single-drive Mach-Zehnder modulators (MZM). In particular, we compare the effect of optical power splitting ratio unbalance with radio frequency modulation unbalance on the two interferometer arms. The better transmission performances of optically unbalanced modulators are ascribed to the different shape of time resolved chirp factor. Finally, we demonstrate error-free uncompensated transmission over 130-km fiber span.

© 2004 IEEE

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  1. A. H. Gnauck, S. K. Korotky, J. J. Veselka, J. Nagel, C. T. Kemmerer, W. J. Minford and D. T. Moser, "Dispersion penalty reduction using an optical modulator with adjustable chirp", IEEE Photon. Technol. Lett., vol. 3, pp. 916-918, Oct. 1991.
  2. N. Henmi, T. Saito and T. Ishida, "Prechirp technique as a linear dispersion compensation for ultrahigh-speed long-span intensity modulation direct detection optical communication systems", J. Lightwave Technol., vol. 12, pp. 1706-1719, Oct. 1994.
  3. J. Yu, M. Fischer, N. Chand, K. Kojima and V. Swaminathan, "10-Gb/s transmission over 200-km conventional fiber without dispersion compensation using the bias control technique", IEEE Photon. Technol. Lett., vol. 14, pp. 1746-1748, Dec. 2002 .
  4. S. Balsamo, P. Bravetti and G. Ghislotti, "Single-drive LiNbO3 Mach-Zehnder modulator with widely DC tunable chirp", in ECOC2003,.
  5. G. Ghislotti, S. Balsamo and P. Bravetti, "Single-drive LiNbO3 Mach-Zehnder modulator with widely DC tunable chirp", IEEE Photon. Technol. Lett., vol. 15, pp. 1534 -1536, Nov. 2003.
  6. Optsim,: RSoft Design Group Inc.,
  7. F. Devaux, Y. Sorel and J. F. Kerdiles, "Simple measurement of fiber dispersion and of chirp parameter of intensity modulated light emitter", J. Lightwave Technol., vol. 11, pp. 1937-1940, Dec. 1993.
  8. P. S. André and J. L. Pinto, "Optimising the operation characteristics of a LiNbO3 based Mach-Zehnder modulator for 10 Gb/s lightwave systems", J. Opt. Commun., vol. 23, pp. 234-238, 2002.
  9. "Making time-resolved chirp measurements using the optical spectrum analyzer and digital communications analyzer", Agilent Tech. Inc., Application note 1550-7,

J. Lightwave Technol. (2)

N. Henmi, T. Saito and T. Ishida, "Prechirp technique as a linear dispersion compensation for ultrahigh-speed long-span intensity modulation direct detection optical communication systems", J. Lightwave Technol., vol. 12, pp. 1706-1719, Oct. 1994.

F. Devaux, Y. Sorel and J. F. Kerdiles, "Simple measurement of fiber dispersion and of chirp parameter of intensity modulated light emitter", J. Lightwave Technol., vol. 11, pp. 1937-1940, Dec. 1993.

Other (7)

P. S. André and J. L. Pinto, "Optimising the operation characteristics of a LiNbO3 based Mach-Zehnder modulator for 10 Gb/s lightwave systems", J. Opt. Commun., vol. 23, pp. 234-238, 2002.

"Making time-resolved chirp measurements using the optical spectrum analyzer and digital communications analyzer", Agilent Tech. Inc., Application note 1550-7,

A. H. Gnauck, S. K. Korotky, J. J. Veselka, J. Nagel, C. T. Kemmerer, W. J. Minford and D. T. Moser, "Dispersion penalty reduction using an optical modulator with adjustable chirp", IEEE Photon. Technol. Lett., vol. 3, pp. 916-918, Oct. 1991.

J. Yu, M. Fischer, N. Chand, K. Kojima and V. Swaminathan, "10-Gb/s transmission over 200-km conventional fiber without dispersion compensation using the bias control technique", IEEE Photon. Technol. Lett., vol. 14, pp. 1746-1748, Dec. 2002 .

S. Balsamo, P. Bravetti and G. Ghislotti, "Single-drive LiNbO3 Mach-Zehnder modulator with widely DC tunable chirp", in ECOC2003,.

G. Ghislotti, S. Balsamo and P. Bravetti, "Single-drive LiNbO3 Mach-Zehnder modulator with widely DC tunable chirp", IEEE Photon. Technol. Lett., vol. 15, pp. 1534 -1536, Nov. 2003.

Optsim,: RSoft Design Group Inc.,

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