Abstract

This paper proposes an optical transmission system with automatic dispersion equalization for exploitation of the fiber capacity without additional installation cost. The system has two operational modes: "measurement-mode" wherein dispersion is measured by phase- to amplitude-modulation conversion, and "data-transmission-mode" for providing telecommunication services. Dispersion equalization is realized by the accompanying use of dispersion compensating devices and wavelength tuning to the zero-dispersion of the optical fibers. Supervisory-channel communication enables remote operation. We demonstrate a simplified system; the dispersion of a 10 Gb/s-1000 km transmission line is successfully equalized in a fully automatic manner. Equalization with the preciseness of {\pm}0.1 nm from the zero-dispersion wavelength provides penalty free transmission or better performance with optical input power under the Brillouin threshold.

© 1998 IEEE

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  1. S. Kawanishi, H. Takara, T. Morioka, O. Kamatani, K. Takiguchi, T. Kitoh, and M. Saruwatari, "400 Gbit/s TDM transmission of 0.98 ps pulses over 40 km employing dispersion slope compensation," in Proc. OFC'96, PD-24, 1996.
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  4. Y. Yamabayashi, M. Tomizawa, and Y. Sato, "Single-wavelength dispersion measurement for multiple-fiber section connected with narrow-band optical amplifiers," IEEE Trans. Instrum. Meas., vol. 45, pp. 218-224, 1996.
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  6. A. Sano, T. Kataoka, M. Tomizawa, K. Hagimoto, K. Sato, K. Wakita, and K. Kato, "Automatic dispersion equalization by monitoring extrcted-clock power level in a 40 Gbit/s, 200 km transmission line," in Proc. ECOC'96 TuD.3.5, 1996.
  7. M. Tomizawa, A. Sano, N. Hirayama, T. Kataoka, and K. Hagimoto, "Automatic dispersion equalization by tunable laser for installation of high-speed optical transmission system," in Proc. OFC'97 Tu-T2, 1997.
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  10. Y. Miyamoto, T. Kataoka, A. Sano, K. Hagimoto, K. Aida, and Y. Kobayashi, "10 Gbit/s, 280 km nonrepeatered transmission with suppression of modulation instability," Electron. Lett., vol. 30, no. 10, pp. 797-798, 1994.
  11. M. Tomizawa and Y. Yamabayashi, "Effect of modulation instability on phase modulation-amplitude modulation conversion in optical fibers," Opt. Lett., vol. 20, no. 10, pp. 1128-1130, 1995.
  12. M. Tomizawa, "Measurement of local zero-dispersion wavelength at the input side of dispersion managed optical fibers," J. Lightwave Technol., vol. 15, pp. 1565-1572, Aug. 1997.
  13. W. Hatton and M. Nishimura, "Temperature dependence of chromatic dispersion in single mode fibers," J. Lightwave Technol., vol. LT-4, pp. 1552-1555, Oct. 1986.

J. Lightwave Technol. (3)

K. Hagimoto and K. Aida, "Multigigabit-per-second optical baseband transmission system," J. Lightwave Technol., vol. 6, pp. 1678-1685, Nov. 1988.

S. Yoshida and K. Iwashita, "Influence of intensity modulation produced by LD direct modulation on transmission characteristics of CPFSK differential detection system," J. Lightwave Technol., vol. 10, pp. 255-264, Feb. 1992.

M. Tomizawa, "Measurement of local zero-dispersion wavelength at the input side of dispersion managed optical fibers," J. Lightwave Technol., vol. 15, pp. 1565-1572, Aug. 1997.

Other (10)

W. Hatton and M. Nishimura, "Temperature dependence of chromatic dispersion in single mode fibers," J. Lightwave Technol., vol. LT-4, pp. 1552-1555, Oct. 1986.

S. Kawanishi, H. Takara, T. Morioka, O. Kamatani, K. Takiguchi, T. Kitoh, and M. Saruwatari, "400 Gbit/s TDM transmission of 0.98 ps pulses over 40 km employing dispersion slope compensation," in Proc. OFC'96, PD-24, 1996.

N. Bergano, F. Kerfoot, and C. Davidson, "Margin measurements in optical amplifier systems," IEEE Photon. Technol. Lett., vol. 5, pp. 304-306, Mar. 1993.

Y. Miyamoto, T. Kataoka, A. Sano, K. Hagimoto, K. Aida, and Y. Kobayashi, "10 Gbit/s, 280 km nonrepeatered transmission with suppression of modulation instability," Electron. Lett., vol. 30, no. 10, pp. 797-798, 1994.

M. Tomizawa and Y. Yamabayashi, "Effect of modulation instability on phase modulation-amplitude modulation conversion in optical fibers," Opt. Lett., vol. 20, no. 10, pp. 1128-1130, 1995.

S. Matsuoka, K. Matsumura, Y. Sato, Y. Kobayashi, and K. Hagimoto, "Fault localization and supervisory channel implementation for optical linear-repeaters in SDH/SONET based networks," IEICE Trans. Commun., vol. E79-B, no. 10, 1996.

Y. Yamabayashi, M. Tomizawa, and Y. Sato, "Single-wavelength dispersion measurement for multiple-fiber section connected with narrow-band optical amplifiers," IEEE Trans. Instrum. Meas., vol. 45, pp. 218-224, 1996.

M. Tomizawa, Y. Yamabayashi, Y. Sato, and T. Kataoka, "Nonlinear influence on PM-AM conversion measurement of group velocity dispersion in optical fibers," Electron. Lett., vol. 30, no. 17, pp. 1434-1435, 1994.

A. Sano, T. Kataoka, M. Tomizawa, K. Hagimoto, K. Sato, K. Wakita, and K. Kato, "Automatic dispersion equalization by monitoring extrcted-clock power level in a 40 Gbit/s, 200 km transmission line," in Proc. ECOC'96 TuD.3.5, 1996.

M. Tomizawa, A. Sano, N. Hirayama, T. Kataoka, and K. Hagimoto, "Automatic dispersion equalization by tunable laser for installation of high-speed optical transmission system," in Proc. OFC'97 Tu-T2, 1997.

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