Abstract

A ten-user truly asynchronous gigabit coherent-optical-code-division-multiple-access (OCDMA) transmission was experimentally demonstrated without using any timing coordination. The enabling technologies are a record-length 511-chip superstructured-fiber-Bragg-grating (SSFBG) en/decoder and a supercontinuum (SC)-based optical-thresholding technique to significantly suppress the signal interference beat noise as well as the multiple-access-interference (MAI) noise.

© 2006 IEEE

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  1. K. Kitayama, X. Wang and H. Sotobayashi, "Gigabit-symmetric FTTH-OCDMA over WDM PON", in Proc. 9th Conf. Optical Network Design & Modelling (ONDM), Milan, Italy,Feb. 2005, pp. 273-281.
  2. M. Nakamura, H. Ueda, S. Makino, T. Yokotani and K. Oshima, "Proposal of networking by PON technologies for full and Ethernet services in FTTx", J. Lightw. Technol., vol. 22, no. 11, pp. 2631-2640, Nov. 2004.
  3. S.-J. Park, C.-H. Lee, K.-T. Jeong, H.-J. Park, J.-G. Ahn and K.-H. Song, "Fiber-to-the-home services based on wavelength-division-multiplexing passive optical network", J. Lightw. Technol., vol. 22, no. 11, pp. 2582-2591, Nov. 2004.
  4. K. Kitayama, X. Wang and H. Sotobayashi, "State of the art of OCDMA, OCDM and OC-label switchings", in Proc. 30th Eur. Conf. Optical Communication (ECOC), Stockholm, Sweden,Sep. 2004, pp. 266-269.
  5. A. Stock and E. H. Sargent, "The role of optical CDMA in access networks", IEEE Commun. Mag., vol. 40, no. 9, pp. 83-87, Sep. 2002.
  6. J. A. Salehi, "Code division multiple-access techniques in optical fiber networks-Part I: Fundamental principles", IEEE Trans. Commun., vol. 37, no. 8, pp. 824-833, Aug. 1989.
  7. K. Kitayama, H. Sotobayashi and N. Wada, "Optical code division multiplexing (OCDM) and its applications to photonic networks", IEICE Trans. Fundam., vol. E82-A, no. 12, pp. 2616-2626, Dec. 1999.
  8. M. E. Marhic, "Coherent optical CDMA networks", J. Lightw. Technol., vol. 11, no. 5/6, pp. 854-863, May/Jun. 1993.
  9. X. Wang, K. Matsushima, A. Nishiki, N. Wada and K. Kitayama, "High reflectivity superstructured FBG for coherent optical code generation and recognition", Opt. Express, vol. 12, no. 22, pp. 5457-5468, Nov. 2004.
  10. P. R. Prucnal, M. A. Santoro and T. R. Fan, "Spread spectrum fiber-optic local area network using optical processing", J. Lightw. Technol., vol. LT-4, no. 5, pp. 547-554, May 1986.
  11. Z. Jiang, D. S. Seo, S. D. Yang, D. E. Leaird, R. V. Roussev, C. Langrock, M. M. Fejer and A. M. Weiner, "Four user 10 Gb/s spectrally phase-coded O-CDMA system operating at \sim 30 fj/bit", IEEE Photon. Technol. Lett., vol. 17, no. 3, pp. 705-707, Mar. 2005.
  12. J. H. Lee, P. C. Teh, P. Petropoulos, M. Ibsen and D. J. Richardson, "A grating-based OCDMA coding-decoding system incorporating a nonlinear optical loop mirror for improved code recognition and noise reduction", J. Lightw. Technol., vol. 20, no. 1, pp. 36-46, Jan. 2002.
  13. K. Li, W. Cong, V. J. Hernandez, R. P. Scott, J. Cao, Y. Du, J. P. Heritage, B. H. Kolner and S. J. B. Yoo, "10 Gb/s optical CDMA encoder-decoder BER performance using HNLF thresholder", presented at the Optical Fiber Communication Conf. (OFC), Los Angeles, CA, Paper MF87, 2004.
  14. J. H. Lee, P. C. Teh, Z. Yusoff, M. Ibsen, W. Belardi, T. M. Monro and D. J. Richardson, "A holey fiber-based nonlinear thresholding device for optical CDMA receiver performance enhancement", IEEE Photon. Technol. Lett., vol. 14, no. 6, pp. 876-878, Jun. 2002.
  15. R. P. Scott, W. Cong, K. Li, V. J. Hernandez, B. H. Kolner, J. P. Heritage and S. J. B. Yoo, "Demonstration of an error-free 4 × 10 Gb/s multiuser SPECTS O-CDMA network testbed", IEEE Photon. Technol. Lett., vol. 16, no. 9, pp. 2186-2188, Sep. 2004.
  16. K. Kitayama and N. Wada, "Photonic IP routing", IEEE Photon. Technol. Lett., vol. 11, no. 12, pp. 1689-1691, Dec. 1999.
  17. P. C. Teh, P. Petropoulos, M. Ibsen and D. J. Richardson, "A comparative study of the performance of seven-and 63-chip optical code-division multiple-access encoders and decoders based on superstructured fiber Bragg gratings", J. Lightw. Technol., vol. 19, no. 9, pp. 1352-1365, Sep. 2001.
  18. X. Wang, K. Matsushima, K. Kitayama, A. Nishiki, N. Wada and F. Kubota, "High-performance optical code generation and recognition by use of a 511-chip, 640-Gchip/s phase-shifted superstructured fiber Bragg grating", Opt. Lett., vol. 30, no. 4, pp. 355-357, Feb. 2005.
  19. H. P. Sardesai and A. M. Weiner, "Nonlinear fibre-optic receiver for ultrashort pulse code division multiple access communications", Electron. Lett., vol. 33, no. 7, pp. 610-611, Mar. 1997.
  20. S. Shen, A. M. Weiner, G. D. Sucha and M. L. Stock, "Bit error rate performance optical CDMA detection under multi-access interference", Electron. Lett., vol. 36, no. 21, pp. 1795-1797, Oct. 2000.
  21. X. Wang and K. Kitayama, "Analysis of beat noise in coherent and incoherent time-spreading OCDMA", J. Lightw. Technol., vol. 22, no. 10, pp. 2226-2235, Oct. 2004.
  22. N. Wada, H. Sotobayashi and K. Kitayama, "Error-free 100 km transmission of 10 Gb/s optical code division multiplexing using BPSK picoseconds-pulse code sequence with novel time-gating detection", IEE Electron. Lett., vol. 35, no. 7, pp. 833-834, Apr. 1999.
  23. H. Sotobayashi, W. Chujo and K. Kitayama, "1.6-b/s/Hz 6.4-Tb/s QPSK-OCDM/WDM (4 OCDM × 40 WDM × 40 Gb/s) transmission experiment using optical hard thresholding", IEEE Photon. Technol. Lett., vol. 14, no. 4, pp. 555-557, Apr. 2002.
  24. T. Okuno, M. Onishi and M. Nishimura, "Ultra-broad-band supercontinuum by dispersion-flattened and decreasing fiber", IEEE Photon. Technol. Lett., vol. 10, no. 1, pp. 72-74, Jan. 1998.
  25. X. Wang, T. Hamanaka, N. Wada and K. Kiayama, "Dispersion-flattened-fiber based optical thresholder for multiple-access-interference suppression in OCDMA system", Opt. Express, vol. 13, no. 14, pp. 5499-5505, Jul. 2005.

Other (25)

K. Kitayama, X. Wang and H. Sotobayashi, "Gigabit-symmetric FTTH-OCDMA over WDM PON", in Proc. 9th Conf. Optical Network Design & Modelling (ONDM), Milan, Italy,Feb. 2005, pp. 273-281.

M. Nakamura, H. Ueda, S. Makino, T. Yokotani and K. Oshima, "Proposal of networking by PON technologies for full and Ethernet services in FTTx", J. Lightw. Technol., vol. 22, no. 11, pp. 2631-2640, Nov. 2004.

S.-J. Park, C.-H. Lee, K.-T. Jeong, H.-J. Park, J.-G. Ahn and K.-H. Song, "Fiber-to-the-home services based on wavelength-division-multiplexing passive optical network", J. Lightw. Technol., vol. 22, no. 11, pp. 2582-2591, Nov. 2004.

K. Kitayama, X. Wang and H. Sotobayashi, "State of the art of OCDMA, OCDM and OC-label switchings", in Proc. 30th Eur. Conf. Optical Communication (ECOC), Stockholm, Sweden,Sep. 2004, pp. 266-269.

A. Stock and E. H. Sargent, "The role of optical CDMA in access networks", IEEE Commun. Mag., vol. 40, no. 9, pp. 83-87, Sep. 2002.

J. A. Salehi, "Code division multiple-access techniques in optical fiber networks-Part I: Fundamental principles", IEEE Trans. Commun., vol. 37, no. 8, pp. 824-833, Aug. 1989.

K. Kitayama, H. Sotobayashi and N. Wada, "Optical code division multiplexing (OCDM) and its applications to photonic networks", IEICE Trans. Fundam., vol. E82-A, no. 12, pp. 2616-2626, Dec. 1999.

M. E. Marhic, "Coherent optical CDMA networks", J. Lightw. Technol., vol. 11, no. 5/6, pp. 854-863, May/Jun. 1993.

X. Wang, K. Matsushima, A. Nishiki, N. Wada and K. Kitayama, "High reflectivity superstructured FBG for coherent optical code generation and recognition", Opt. Express, vol. 12, no. 22, pp. 5457-5468, Nov. 2004.

P. R. Prucnal, M. A. Santoro and T. R. Fan, "Spread spectrum fiber-optic local area network using optical processing", J. Lightw. Technol., vol. LT-4, no. 5, pp. 547-554, May 1986.

Z. Jiang, D. S. Seo, S. D. Yang, D. E. Leaird, R. V. Roussev, C. Langrock, M. M. Fejer and A. M. Weiner, "Four user 10 Gb/s spectrally phase-coded O-CDMA system operating at \sim 30 fj/bit", IEEE Photon. Technol. Lett., vol. 17, no. 3, pp. 705-707, Mar. 2005.

J. H. Lee, P. C. Teh, P. Petropoulos, M. Ibsen and D. J. Richardson, "A grating-based OCDMA coding-decoding system incorporating a nonlinear optical loop mirror for improved code recognition and noise reduction", J. Lightw. Technol., vol. 20, no. 1, pp. 36-46, Jan. 2002.

K. Li, W. Cong, V. J. Hernandez, R. P. Scott, J. Cao, Y. Du, J. P. Heritage, B. H. Kolner and S. J. B. Yoo, "10 Gb/s optical CDMA encoder-decoder BER performance using HNLF thresholder", presented at the Optical Fiber Communication Conf. (OFC), Los Angeles, CA, Paper MF87, 2004.

J. H. Lee, P. C. Teh, Z. Yusoff, M. Ibsen, W. Belardi, T. M. Monro and D. J. Richardson, "A holey fiber-based nonlinear thresholding device for optical CDMA receiver performance enhancement", IEEE Photon. Technol. Lett., vol. 14, no. 6, pp. 876-878, Jun. 2002.

R. P. Scott, W. Cong, K. Li, V. J. Hernandez, B. H. Kolner, J. P. Heritage and S. J. B. Yoo, "Demonstration of an error-free 4 × 10 Gb/s multiuser SPECTS O-CDMA network testbed", IEEE Photon. Technol. Lett., vol. 16, no. 9, pp. 2186-2188, Sep. 2004.

K. Kitayama and N. Wada, "Photonic IP routing", IEEE Photon. Technol. Lett., vol. 11, no. 12, pp. 1689-1691, Dec. 1999.

P. C. Teh, P. Petropoulos, M. Ibsen and D. J. Richardson, "A comparative study of the performance of seven-and 63-chip optical code-division multiple-access encoders and decoders based on superstructured fiber Bragg gratings", J. Lightw. Technol., vol. 19, no. 9, pp. 1352-1365, Sep. 2001.

X. Wang, K. Matsushima, K. Kitayama, A. Nishiki, N. Wada and F. Kubota, "High-performance optical code generation and recognition by use of a 511-chip, 640-Gchip/s phase-shifted superstructured fiber Bragg grating", Opt. Lett., vol. 30, no. 4, pp. 355-357, Feb. 2005.

H. P. Sardesai and A. M. Weiner, "Nonlinear fibre-optic receiver for ultrashort pulse code division multiple access communications", Electron. Lett., vol. 33, no. 7, pp. 610-611, Mar. 1997.

S. Shen, A. M. Weiner, G. D. Sucha and M. L. Stock, "Bit error rate performance optical CDMA detection under multi-access interference", Electron. Lett., vol. 36, no. 21, pp. 1795-1797, Oct. 2000.

X. Wang and K. Kitayama, "Analysis of beat noise in coherent and incoherent time-spreading OCDMA", J. Lightw. Technol., vol. 22, no. 10, pp. 2226-2235, Oct. 2004.

N. Wada, H. Sotobayashi and K. Kitayama, "Error-free 100 km transmission of 10 Gb/s optical code division multiplexing using BPSK picoseconds-pulse code sequence with novel time-gating detection", IEE Electron. Lett., vol. 35, no. 7, pp. 833-834, Apr. 1999.

H. Sotobayashi, W. Chujo and K. Kitayama, "1.6-b/s/Hz 6.4-Tb/s QPSK-OCDM/WDM (4 OCDM × 40 WDM × 40 Gb/s) transmission experiment using optical hard thresholding", IEEE Photon. Technol. Lett., vol. 14, no. 4, pp. 555-557, Apr. 2002.

T. Okuno, M. Onishi and M. Nishimura, "Ultra-broad-band supercontinuum by dispersion-flattened and decreasing fiber", IEEE Photon. Technol. Lett., vol. 10, no. 1, pp. 72-74, Jan. 1998.

X. Wang, T. Hamanaka, N. Wada and K. Kiayama, "Dispersion-flattened-fiber based optical thresholder for multiple-access-interference suppression in OCDMA system", Opt. Express, vol. 13, no. 14, pp. 5499-5505, Jul. 2005.

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