Abstract

We report a range of elementary optical coding and decoding experiments employing superstructured fiber Bragg grating (SSFBG) components. First, we perform a comparative study of the relative merits of bipolar and unipolar coding: decoding schemes and show that the SSFBG approach allows high-quality unipolar and bipolar coding. A performance close to that theoretically predicted for seven-chip, 160-Gchip/s M-sequence codes is obtained. Second, we report the fabrication and performance of 63-chip,160-Gchip/s, bipolar Gold sequence grating pairs. These codes are at least eight times longer than those generated by any other scheme based on fiber grating technology so far reported. Last, we describe a range of transmission system experiments for both the seven-and 63-bit bipolar grating pairs. Error-free performance is obtained over transmission distances of 25 km of standard fiber. In addition, we have demonstrated error-free performance under multiuser operation (two simultaneous users). Our results highlight the precision and flexibility of our particular grating writing process and show that SSFBG technology represents a promising technology not just for optical code division multiple access (OCDMA) but also for an extended range of other pulse-shaping optical processing applications.

[IEEE ]

PDF Article

References

  • View by:
  • |

  1. M. E. Marhic, "Coherent optical CDMA networks", J. Lightwave Technol., vol. 11, pp. 854-863, June 1993.
  2. N. Wada and K. Kitayama, "A 10Gb/s optical code division multiplexing using 8-chip optical bipolar code and coherent detection", J. Lightwave Technol., vol. 17, pp. 1758-1765, Oct. 1999.
  3. J. A. Salehi, A. M. Weiner and J. P. Heritage, "Coherent ultrashort light pulse CDMA communication systems", J. Lightwave Technol., vol. 8, pp. 478-491, Apr. 1990.
  4. H. P. Sardesai, C. C. Chang and A. M. Weiner, "A femtosecond code division multiple-access communication system test bed", J. Lightwave Technol., vol. 16, pp. 1953-1964, Nov. 1998.
  5. H. Fathallah, L. A. Rusch and S. LaRochelle, "Passive optical fast frequency-hop CDMA communications system", J. Lightwave Technol., vol. 17, pp. 397-405, Mar. 1999.
  6. A. J. Mendez, R. M. Gagliardi, H. X. C. Feng, J. P. Heritage and J. M. Morookian, "Strategies for realising optical CDMA for dense, high speed, long span, optical network applications", J. Lightwave Technol., vol. 18, pp. 1685-1696, Dec. 2000 .
  7. H. X. C. Feng, A. J. Mendez, J. P. Heritage and W. J. Lennon, "Effects of optical layer impairments on 2.5 Gbit/s optical CDMA transmission", Opt. Express, vol. 7, pp. 2-9, 2000 .
  8. P. Petropoulos, M. Ibsen, A. D. Ellis and D. J. Richardson, "Rectangular pulse generation based on pulse reshaping using a superstructured fiber Bragg grating", J. Lightwave Technol., vol. 19, pp. 746-752, May 2001.

Cited By

OSA participates in CrossRef's Cited-By Linking service. Citing articles from OSA journals and other participating publishers are listed here.