Abstract

The subcarrier transmission of quadrature-amplitude modulation radio frequency (RF) signals over a dispersive fiber link is analytically and numerically studied. It is well known that the double-sideband transmission of an RF subcarrier will suffer from frequency-dependent fading caused by fiber dispersion. The present analyses show that the fading of the RF amplitude depends on the modulation index in the optical signal, which causes distortion in the constellation map. We will show that this is attributed to higher order harmonics of modulation sidebands excited through the nonlinear response of the intensity modulators. Optical single-sideband transmission, which is believed to be free from dispersion-induced fading, is also analyzed and predicts a cyclic deviation of the symbols both in amplitude and phase.

© 2012 IEEE

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References

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  1. H. Al-Raweshidy, S. Komaki, Radio Over Fiber Technologies for Mobile Communications Networks (Artech House, 2002).
  2. C. Lim, A. Nirmalathas, M. Bakaul, K. Lee, D. Novak, R. Waterhouse, "Mitigation strategy for transmission impairments in millimeterwave radio-over-fiber networks," J. Opt. Netw. 8, 201-214 (2009).
  3. K. Kitayama, "Highly spectrum efficient OFDM/PDM wireless networks by using optical SSB modulation," J. Lightw. Technol. 16, 969-976 (1998).
  4. G. H. Smith, D. Novak, "Broad-band millimeter-wave fiber-wireless trsnamission system using electrical and optical SSB modulation," IEEE Photon. Technol. Lett. 10, 141-143 (1998).
  5. C. Lim, M. Attygalle, A. Nirmalathas, D. Novak, R. Waterhouse, "Analysis of optical carrier-to-sideband ratio for improving transmission performance in fiber-radio links," IEEE Trans. Microw. Theory Technol. 54, 2181-2187 (2006).
  6. E. E. Funk, V. J. Urick, F. Bucholtz, Microwave Photonics (CRC Press, 2007) pp. 185-212.
  7. C. Lim, A. Nirmalathas, K.-L. Lee, D. Novak, R. Waterhouse, "Intermodulation distortion improvement for fiber-radio applications incorporating OSSB + C modulation in an optical integrated-access environment," J. Lightw. Technol. 25, 1602-1612 (2007).
  8. J. L. Corral, J. Marti, 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 Technol. MTT-49, 1968-1976 (2001).
  9. G. P. Agrawal, Nonlinear Fiber Optics (Academic, 2007).

2009 (1)

2007 (1)

C. Lim, A. Nirmalathas, K.-L. Lee, D. Novak, R. Waterhouse, "Intermodulation distortion improvement for fiber-radio applications incorporating OSSB + C modulation in an optical integrated-access environment," J. Lightw. Technol. 25, 1602-1612 (2007).

2006 (1)

C. Lim, M. Attygalle, A. Nirmalathas, D. Novak, R. Waterhouse, "Analysis of optical carrier-to-sideband ratio for improving transmission performance in fiber-radio links," IEEE Trans. Microw. Theory Technol. 54, 2181-2187 (2006).

2001 (1)

J. L. Corral, J. Marti, 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 Technol. MTT-49, 1968-1976 (2001).

1998 (2)

K. Kitayama, "Highly spectrum efficient OFDM/PDM wireless networks by using optical SSB modulation," J. Lightw. Technol. 16, 969-976 (1998).

G. H. Smith, D. Novak, "Broad-band millimeter-wave fiber-wireless trsnamission system using electrical and optical SSB modulation," IEEE Photon. Technol. Lett. 10, 141-143 (1998).

IEEE Trans. Microw. Theory Technol. (1)

J. L. Corral, J. Marti, 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 Technol. MTT-49, 1968-1976 (2001).

IEEE Photon. Technol. Lett. (1)

G. H. Smith, D. Novak, "Broad-band millimeter-wave fiber-wireless trsnamission system using electrical and optical SSB modulation," IEEE Photon. Technol. Lett. 10, 141-143 (1998).

IEEE Trans. Microw. Theory Technol. (1)

C. Lim, M. Attygalle, A. Nirmalathas, D. Novak, R. Waterhouse, "Analysis of optical carrier-to-sideband ratio for improving transmission performance in fiber-radio links," IEEE Trans. Microw. Theory Technol. 54, 2181-2187 (2006).

J. Lightw. Technol. (1)

K. Kitayama, "Highly spectrum efficient OFDM/PDM wireless networks by using optical SSB modulation," J. Lightw. Technol. 16, 969-976 (1998).

J. Lightw. Technol. (1)

C. Lim, A. Nirmalathas, K.-L. Lee, D. Novak, R. Waterhouse, "Intermodulation distortion improvement for fiber-radio applications incorporating OSSB + C modulation in an optical integrated-access environment," J. Lightw. Technol. 25, 1602-1612 (2007).

J. Opt. Netw. (1)

Other (3)

H. Al-Raweshidy, S. Komaki, Radio Over Fiber Technologies for Mobile Communications Networks (Artech House, 2002).

E. E. Funk, V. J. Urick, F. Bucholtz, Microwave Photonics (CRC Press, 2007) pp. 185-212.

G. P. Agrawal, Nonlinear Fiber Optics (Academic, 2007).

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