Abstract

Third-order intermodulation (IM3) is a very important issue as a degradation factor of system performance in the range of high input signal power. In this paper, the effect of IM3 from a dual-electrode Mach-Zehnder modulator (DEMZM) and a photodetector (PD) is analyzed for optical single-sideband (OSSB) and optical double-sideband (ODSB) signals incorporating fiber dispersion. In addition, the optimum input signal power and the signal-to-noise-and-distortion ratio (SNDR) for the two cases are also investigated to optimize the performance of the entire system. In the case of OSSB signals, the fundamental components are robust against fiber dispersion, whereas their IM3 components are still sensitive to fiber dispersion. Subsequently, the SNDR for OSSB signals fluctuated to within 6 dB in the relatively high input power range due to fiber dispersion. In the case of ODSB signals, both powers of the fundamental and IM3 components are attenuated. However, the power attenuation of IM3 due to fiber dispersion is significantly faster than that of the fundamental. Thus, the SNDR for ODSB signals is improved as fiber dispersion increases until the power of IM3 is greater than that of the additive noise level.

© 2006 IEEE

PDF Article

References

  • View by:
  • |

  1. H. Ogawa, D. Polifko and S. Banda, "Millimeter-wave fiber optics systems for personal radio communication", IEEE Trans. Microw. Theory Tech., vol. 40, no. 12, pp. 2285-2292, Dec. 1992.
  2. J. Leibrich, "CF-RZ-DPSK for suppression of XPM on dispersion-managed long-haul optical WDM transmission on standard single-mode fiber", in Proc. IEEE MTT-S IMS, vol. 1, Jun. 2004, pp. 417-420.
  3. Y. J. Wen, "Power level optimization of 40 Gb/s DWDM systems with hybrid Raman/EDFA amplification", in Proc. COIN/ACOFT, Jul. 2003, pp. 309-312.
  4. K. P. Ho, J. D. Walker and J. M. Kahn, "External optical feedback effects on intensity noise of vertical-cavity surface-emitting laser", IEEE Photon. Technol. Lett., vol. 5, no. 8, pp. 892-895, Aug. 1993.
  5. F. Assadourian, "Intermodulation distortion and efficiency analysis of multicarrier repeaters", IEEE Trans. Commun., vol. COM-8, no. 1, pp. 68-71, Mar. 1960.
  6. L. Besser and R. Gilmore, Practical RF Circuit Design for Modern Wireless Systems, Boston, MA: Artech House,
  7. T. Akiyama, K. Inagaki and Y. Mizuguchi, "Intermodulation distortion by PD in heterodyne detection fibre-optic millimetre-wave links", Electron. Lett., vol. 35, no. 17, pp. 1478-1480, Aug. 1999.
  8. J. L. Corral, J. Marti and J. M. Fuster, "General expressions for IM/DD dispersive analog optical links with external modulation or optical up-conversion in a Mach-Zehnder electrooptical modulator", IEEE Trans. Microw. Theory Tech., vol. 49, no. 10, pp. 1968-1976, Oct. 2001.
  9. W. H. Chen and W. I. Way, "Multichannel signal-sideband SCM/DWDM transmission systems", J. Lightw. Technol., vol. 22, no. 7, pp. 1679-1693, Jul. 2004.
  10. G. H. Smith and D. Novak, "Overcoming chromatic-dispersion effects in fiber-wireless systems incorporating external modulators", IEEE Trans. Microw. Theory Tech., vol. 45, no. 8, pp. 1410-1415, Aug. 1997.
  11. G. P. Agrawal, Nonlinear Fiber Optics, San Diego, CA: Academic, 1989.
  12. T.-S. Cho, C. Yun, K. Kim and K. Kim, "Effect of laser and RF oscillator phase noises", in Proc. IEEE MTT-S Int. Microw. Symp. Dig., vol. 1, Jun. 6-11 2004, pp. 417-420.
  13. Y. Palaskas and Y. Tsividis, "Power-area-DR-frequency-selectivity tradeoffs in weakly nonlinear active filters", in Proc. ISCAS, vol. 1, May. 2003, pp. I-453-I-456.

Other (13)

H. Ogawa, D. Polifko and S. Banda, "Millimeter-wave fiber optics systems for personal radio communication", IEEE Trans. Microw. Theory Tech., vol. 40, no. 12, pp. 2285-2292, Dec. 1992.

J. Leibrich, "CF-RZ-DPSK for suppression of XPM on dispersion-managed long-haul optical WDM transmission on standard single-mode fiber", in Proc. IEEE MTT-S IMS, vol. 1, Jun. 2004, pp. 417-420.

Y. J. Wen, "Power level optimization of 40 Gb/s DWDM systems with hybrid Raman/EDFA amplification", in Proc. COIN/ACOFT, Jul. 2003, pp. 309-312.

K. P. Ho, J. D. Walker and J. M. Kahn, "External optical feedback effects on intensity noise of vertical-cavity surface-emitting laser", IEEE Photon. Technol. Lett., vol. 5, no. 8, pp. 892-895, Aug. 1993.

F. Assadourian, "Intermodulation distortion and efficiency analysis of multicarrier repeaters", IEEE Trans. Commun., vol. COM-8, no. 1, pp. 68-71, Mar. 1960.

L. Besser and R. Gilmore, Practical RF Circuit Design for Modern Wireless Systems, Boston, MA: Artech House,

T. Akiyama, K. Inagaki and Y. Mizuguchi, "Intermodulation distortion by PD in heterodyne detection fibre-optic millimetre-wave links", Electron. Lett., vol. 35, no. 17, pp. 1478-1480, Aug. 1999.

J. L. Corral, J. Marti and J. M. Fuster, "General expressions for IM/DD dispersive analog optical links with external modulation or optical up-conversion in a Mach-Zehnder electrooptical modulator", IEEE Trans. Microw. Theory Tech., vol. 49, no. 10, pp. 1968-1976, Oct. 2001.

W. H. Chen and W. I. Way, "Multichannel signal-sideband SCM/DWDM transmission systems", J. Lightw. Technol., vol. 22, no. 7, pp. 1679-1693, Jul. 2004.

G. H. Smith and D. Novak, "Overcoming chromatic-dispersion effects in fiber-wireless systems incorporating external modulators", IEEE Trans. Microw. Theory Tech., vol. 45, no. 8, pp. 1410-1415, Aug. 1997.

G. P. Agrawal, Nonlinear Fiber Optics, San Diego, CA: Academic, 1989.

T.-S. Cho, C. Yun, K. Kim and K. Kim, "Effect of laser and RF oscillator phase noises", in Proc. IEEE MTT-S Int. Microw. Symp. Dig., vol. 1, Jun. 6-11 2004, pp. 417-420.

Y. Palaskas and Y. Tsividis, "Power-area-DR-frequency-selectivity tradeoffs in weakly nonlinear active filters", in Proc. ISCAS, vol. 1, May. 2003, pp. I-453-I-456.

Cited By

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