Research Letters in Optics
Volume 2009 (2009), Article ID 981620, 4 pages
doi:10.1155/2009/981620
Research Letter

Demonstration of an All-Optical 2-to-4 Level Encoder Based on an Optical Parametric Amplifier

Yu Liang, P. C. Chui, and Kenneth Kin-Yip Wong

Department of Electrical and Electronic Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong

Received 4 December 2008; Accepted 22 January 2009

Academic Editor: Sulaiman Wadi Harun

Copyright © 2009 Yu Liang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Linked References

  1. K. Yonenaga, S. Kuwano, S. Norimatsu, and N. Shibata, “Optical duobinary transmission system with no receiver sensitivity degradation,” Electronics Letters, vol. 31, no. 4, pp. 302–304, 1995. View at Publisher · View at Google Scholar
  2. S. Walklin and J. Conradi, “Multilevel signaling for increasing the reach of 10 Gb/s lightwave systems,” Journal of Lightwave Technology, vol. 17, no. 11, pp. 2235–2248, 1999. View at Publisher · View at Google Scholar
  3. C. H. Kwok and K. K.-Y. Wong, “Phase shifted multilevel amplitude-shift keying for 100 Gb/s ethernet application,” in Proceedings of the Conference on Lasers and Electro-Optics (CLEO '08), San Jose, Calif, USA, May 2008, paper CThH5.
  4. K. Mishina, S. Kitagawa, and A. Maruta, “All-optical modulation format conversion from on-off-keying to multiple-level phase-shift-keying based on nonlinearity in optical fiber,” Optics Express, vol. 15, no. 13, pp. 8444–8453, 2007. View at Publisher · View at Google Scholar
  5. N. Kikuchi, K. Sekine, S. Sasaki, and T. Sugawara, “Study on cross-phase modulation (XPM) effect on amplitude and differentially phase-modulated multilevel signals in DWDM transmission,” IEEE Photonics Technology Letters, vol. 17, no. 7, pp. 1549–1551, 2005. View at Publisher · View at Google Scholar
  6. H. Soto and A. Gutiérrez, “All-optical 2-to-4 level encoder based on cross polarization modulation in a semiconductor optical amplifier utilized to develop an all-optical 2 input digital multiplexer,” Optics Express, vol. 14, no. 20, pp. 9000–9005, 2006. View at Publisher · View at Google Scholar
  7. G. P. Agrawal, Nonlinear Fiber Optics, Academic Press, New York, NY, USA, 3rd edition, 2001.
  8. L. Huo, J. Zhao, C. Lin, C.-K. Chan, and Z. Wang, “Experimental demonstration of a novel all-optical multilevel 4-amplitude-shifted-keying coding/decoding scheme,” in Proceedings of the Optical Fiber Communication Conference (OFC '06), Anaheim, Calif, USA, March 2006, paper JThB41.
  9. H. K. Y. Cheung, R. W. L. Fung, D. M. F. Lai, and K. K.-Y. Wong, “Optical pulse generation using two-stage compression based on optical parametric amplifier,” in Proceedings of the Conference on Lasers and Electro-Optics (CLEO '07), pp. 1–2, Baltimore, Md, USA, May 2007, paper CWB06. View at Publisher · View at Google Scholar
  10. S. Oda and A. Maruta, “All-optical digital-to-analog conversion using nonlinear optical loop mirrors,” IEEE Photonics Technology Letters, vol. 18, no. 5, pp. 703–705, 2006. View at Publisher · View at Google Scholar
  11. M. L. Dennis, W. I. Kaechele, W. K. Burns, T. F. Carruthers, and I. N. Duling, III, “Photonic serial-parallel conversion of high-speed OTDM data,” IEEE Photonics Technology Letters, vol. 12, no. 11, pp. 1561–1563, 2000. View at Publisher · View at Google Scholar