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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 11 — May. 23, 2011
  • pp: 10973–10978

Analysis of the carrier-suppressed single-sideband modulators used to mitigate Rayleigh backscattering in carrier-distributed PON

C. W. Chow, C. H. Wang, C. H. Yeh, and S. Chi  »View Author Affiliations

Optics Express, Vol. 19, Issue 11, pp. 10973-10978 (2011)

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By using the carrier-suppressed single-sideband (CS-SSB) modulation, the Rayleigh backscattering (RB) experienced by the uplink signal can be effectively mitigated due to the reduction of the spectral overlap between the uplink signal and the distributed optical carrier. In this work, we first introduce the theoretical analysis of the CS-SSB generation using the dual-drive MZM (DD-MZM)-based and a dual-parallel MZM (DP-MZM)-based optical networking units (ONUs). Due to the different modulation mechanisms of the two CS-SSB modulations, the frequency components of the generated CS-SSB signals are also different. The transmission performance and the dispersion tolerance of the uplink signals generated by the two CS-SSB modulators are also analyzed and discussed.

© 2011 OSA

OCIS Codes
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.2360) Fiber optics and optical communications : Fiber optics links and subsystems

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: February 25, 2011
Revised Manuscript: April 4, 2011
Manuscript Accepted: April 8, 2011
Published: May 20, 2011

C. W. Chow, C. H. Wang, C. H. Yeh, and S. Chi, "Analysis of the carrier-suppressed single-sideband modulators used to mitigate Rayleigh backscattering in carrier-distributed PON," Opt. Express 19, 10973-10978 (2011)

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  1. L. Y. Chan, C. K. Chan, D. T. K. Tong, F. Tong, and L. K. Chen, “Upstream traffic transmitter using injection-locked Fabry-Perot laser diode as modulator for WDM access networks,” Electron. Lett. 38(1), 43–45 (2002). [CrossRef]
  2. W. Hung, C. K. Chan, L. K. Chen, and F. Tong, “An optical network unit for WDM access networks with downstream DPSK and upstream remodulated OOK data using injection-locked FP laser,” IEEE Photon. Technol. Lett. 15(10), 1476–1478 (2003). [CrossRef]
  3. C. W. Chow, “Wavelength remodulation using DPSK down-and-upstream with high extinction ratio for 10-Gb/s DWDM-passive optical networks,” IEEE Photon. Technol. Lett. 20(1), 12–14 (2008). [CrossRef]
  4. G. Talli, C. W. Chow, E. K. MacHale, and P. D. Townsend, “Rayleigh noise mitigation in long-reach hybrid DWDM-TDM PONs,” J. Opt. Netw. 6, 765–776 (2007). [CrossRef]
  5. S.-K. Liaw, S.-L. Tzeng, and Y.-J. Hung, “Power penalty induced by Rayleigh backscattering in a bidirectional wavelength-reuse lightwave system,” Proc. CLEO (2001) CThL54.
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  7. C. W. Chow, G. Talli, and P. D. Townsend, “Rayleigh noise reduction in 10-Gb/s DWDM-PONs by wavelength detuning and phase-modulation-induced spectral broadening,” IEEE Photon. Technol. Lett. 19(6), 423–425 (2007). [CrossRef]
  8. C. W. Chow, G. Talli, A. D. Ellis, and P. D. Townsend, “Rayleigh noise mitigation in DWDM LR-PONs using carrier suppressed subcarrier-amplitude modulated phase shift keying,” Opt. Express 16(3), 1860–1866 (2008). [CrossRef] [PubMed]
  9. J. Prat, M. Omella, and V. Polo, “Wavelength shifting for colorless ONUs in single-fiber WDM-PONs,” Proc. OFC (2007), Anaheim, CA, OFE1.
  10. C. H. Wang, C. W. Chow, C. H. Yeh, C. L. Wu, S. Chi, and C. Lin, “Rayleigh noise mitigation using single sideband modulation generated by a dual-parallel MZM for carrier distributed PON,” IEEE Photon. Technol. Lett. 22(11), 820–822 (2010). [CrossRef]
  11. C. W. Chow and C. H. Yeh, “Mitigation of Rayleigh backscattering in 10-Gb/s downstream and 2.5-Gb/s upstream DWDM 100-km long-reach PONs,” Opt. Express 19(6), 4970–4976 (2011). [CrossRef] [PubMed]
  12. C. W. Chow, C. H. Yeh, L. Xu, and H. K. Tsang, “Rayleigh backscattering mitigation using wavelength splitting for heterogeneous optical wired and wireless access,” IEEE Photon. Technol. Lett. 22(17), 1294–1296 (2010). [CrossRef]

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