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랜덤하게 분포하는 RDPS의 분산 제어 광전송 링크에서의 시스템 성능 특성

Characteristics of System Performance in Optical Transmission Links with the Randomly Distributed RDPS

  • Lee, Seong-Real (Department of Marine Information and Communication Engineering, Mokpo National Maritime University)
  • 투고 : 2013.02.08
  • 심사 : 2013.09.04
  • 발행 : 2013.09.30

초록

광 위상 공액과 분산 제어 (DM; dispersion management)를 결합한 기술은 그룹 속도 분산과 비선형 Kerr 효과에 의한 광 신호 왜곡을 보상하는 대표적인 기술이다. 하지만 일반적으로 사용되는 고정된 중계 구간 당 잉여 분산(RDPS; residual dispersion per span)은 광전송 링크의 유연한 구성을 방해한다. 본 논문에서는 유연한 광 네트워크 구축을 위해 랜덤하게 분포하는 RDPS의 DM과 결합된 새로운 OPC 링크를 제안하였다. 본 논문을 통해 WDM 채널의 입사 전력을 비교적 적게 제한하면 랜덤한 분포의 RDPS크기에 관계없이 보상 특성을 우수하게 할 수 있으며, 평균값을 0 ps/nm가 아닌 50 ps/nm부터 100 ps/nm가 되도록 중계 구간의 RDPS를 랜덤하게 분포시키면 비교적 큰 입사 전력의 WDM 채널들도 우수한 성능으로 전송시킬 수 있는 것을 확인하였다.

Optical phase conjugation combining with dispersion management (DM) is promising technique to compensate for signal distortion due to group velocity dispersion (GVD) and nonlinear Kerr effects in optical communication systems. However the fixed residual dispersion per span (RDPS) usually used in the optical links with OPC and DM restricts the flexible link configuration. In this paper, OPC links combining DM of the randomly distributed RDPS is proposed for implementing the flexible optical transmission network. It is confirmed that the excellent compensation in the optical links with the randomly distributed RDPS is obtained, limiting the launch power of WDM channels to the relatively low. It is also confirmed that the relatively high launch power WDM channels are effectively transmitted through the optical links with the randomly distributed RDPS of averaged 50 - 100 ps/nm.

키워드

참고문헌

  1. M. Suzuki, and N. Edagawa, "Dispersion-managed high-capacity ultra-long-haul transmission," Journal of Lightwave Technology, vol. 21, no. 4, pp. 916-929, 2003. https://doi.org/10.1109/JLT.2003.810098
  2. L. Gruner-Nielsen, M. Wandel, P. Kristensen, C. Jorgensen, L. V. Jorgensen, B. Edvold, B. Palsdottir, and D. Jakobsen, "Dispersion-compensating fibers," Journal of Lightwave Technology, vol.23, no.11,pp.3566-3579, 2005. https://doi.org/10.1109/JLT.2005.855873
  3. X. Xiao, S. Gao, Y. Tian, and C. Yang, "Analytical optimization of the net residual dispersion in SPM-limited dispersion-managed systems," Journal of Lightwave Technology, vol.24, no.5, pp.2038-2044, 2006. https://doi.org/10.1109/JLT.2006.872278
  4. H. Wei, and D. V. Plant, "Simultaneous nonlinearity suppression and wide-band dispersion compensation using optical phase conjugation," Optics Express, vol. 12, no. 9, pp. 1938-1958, 2004. https://doi.org/10.1364/OPEX.12.001938
  5. S. L. Jansen, D. van den Borne, M. Krummrich, , S. Spalter, and G. D. Khoe, "Long-haul DWDM transmission systems employing optical phase conjugation," IEEE Journal Selected Topics In Quantum Electronics, vol.12, no.4, pp.505-520, 2006. https://doi.org/10.1109/JSTQE.2006.876621
  6. S. Watanabe, and M. Shirasaki, "Exact compensation for both chromatic dispersion and Kerr effect in a transmission fiber using optical phase conjugation," Journal of Lightwave Technology, vol. 14, no. 3, pp. 243-248, 1996. https://doi.org/10.1109/50.485581
  7. X. Xiao, C. Yang, S. Gao, and Y. Tian, "Partial compensation of Kerr nonlinearities by optical phase conjugation in optical fiber transmission systems without power symmetry," Optics Communications, vol. 265, no. 1, pp. 326-330, 2006. https://doi.org/10.1016/j.optcom.2006.03.007
  8. P. Minzioni, F. Alberti, and A. Schiffini, "Optimized link design for nonlinearity cancellation by optical phase conjugation," IEEE Photonics Technology Letters, vol. 16, no. 3, pp. 813-815, 2004. https://doi.org/10.1109/LPT.2004.823754
  9. A. Chowdhury, and R. J. Essiambre, "Optical phase conjugation and pseudolinear transmission," Optics Letters, vol. 29, no. 10, pp. 1105-1107, 2004. https://doi.org/10.1364/OL.29.001105
  10. P. Minzioni, and A. Schiffini, "Unifying theory of compensation techniques for intrachannel nonlinear effects," Optics. Express, vol. 13, no. 21, pp. 8460-8468, 2005. https://doi.org/10.1364/OPEX.13.008460
  11. S. R. Lee, "Dispersion managed optical transmission links with optimized optical phase conjugator," International Journal of Maritime Information and Communication Sciences, vol.7, no.3, pp. 372-376, 2009.
  12. G. P. Agrawal, Fiber-Optic Communication Systems, 3rd ed., New York, NY:Wiley, 2002.
  13. G. P. Agrawal, Nonlinear Fiber Optics 3rd ed.. San Francisco, SF:Academic Press, 2001.