Abstract

The effects of chromatic dispersion (CD), polarization-mode dispersion (PMD), and polarization-dependent loss (PDL) on the intensity noise suppression of spectrum-sliced incoherent light sources achieved by using gain-saturated (GS) semiconductor optical amplifiers (SOAs) are investigated. Passing the spectrum-sliced incoherent light through SOAs, the excess intensity noise (EIN) originating from beating of spontaneous emission against itself can be greatly reduced. However, since the noise suppression is achieved by an elaborate balancing between numerous frequency/polarization components of light, thus, forming a high correlation between them, it is vulnerable to frequency/polarization-dependent optical phenomena. Through Q-factor and bit error rate (BER) measurements, this paper shows that CD, PMD, or PDL deteriorates the SOA-based noise suppression technique by breaking the correlation. Spectral analysis is also performed to investigate the frequency dependency of these effects. It is shown that CD and PMD negate the noise suppression giving rise to intensity noise from high frequencies, whereas there is no frequency dependence for PDL effects. Therefore, CD-, PMD-, or PDL-induced penalties for incoherent light sources using the SOA-based noise suppression technique are considerably greater than those produced by pulse broadening or distortion alone.

© 2006 IEEE

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  4. P. Healey, P. Townsend, C. Ford, L. Johnston, P. Townley, I. Lealman, L. Rivers, S. Perrin and R. Moore, "Spectral slicing WDM-PON using wavelength-seeded reflective SOAs", Electron. Lett., vol. 37, no. 19, pp. 1181-1182, Sep. 2001.
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  10. M. Zhao, G. Morthier and R. Baets, "Analysis and optimization of intensity noise reduction in spectrum-sliced WDM systems using a saturated semiconductor optical amplifier", IEEE Photon. Technol. Lett., vol. 14, no. 3, pp. 390-392, Mar. 2002.
  11. J. L. Gimlett and N. K. Cheung, "Dispersion penalty analysis for LED/single-mode fiber transmission systems", J. Lightw. Technol., vol. LT-4, no. 9, pp. 1381-1392, Sep. 1986.
  12. G. J. Pendock and D. D. Sampson, "Signal-to-noise ratio of modulated sources of ASE transmitted over dispersive fiber", IEEE Photon. Technol. Lett., vol. 9, no. 7, pp. 1002-1004, Jul. 1997.
  13. P. J. Winzer, H. Kogelnik, C. H. Kim, H. Kim, R. M. Jopson, L. E. Nelson and K. Ramanan, "Receiver impact on first-order PMD outage", IEEE Photon. Technol. Lett., vol. 15, no. 10, pp. 1482-1484, Oct. 2003.
  14. C. J. Youn, K. J. Park, J. H. Lee and Y. C. Chung, "OSNR monitoring technique based on orthogonal delayed-homodyne method", IEEE Photon. Technol. Lett., vol. 14, no. 10, pp. 1469-1471, Oct. 2002.

Other (14)

J. Lee, Y. Chung and D. DiGiovanni, "Spectrum-sliced fiber amplifier light source for multi-channel WDM applications", IEEE Photon. Technol. Lett., vol. 5, no. 12, pp. 1458-1461, Dec. 1993.

J. S. Lee, Y. C. Chung, T. H. Wood, J. P. Meester, C. H. Joyner, C. A. Burrus, J. Stone, H. M. Presby and D. J. DiGiovanni, "Spectrum-sliced fiber amplifier light source with a polarization-insensitive electroabsorption modulator", IEEE Photon. Technol. Lett., vol. 6, no. 8, pp. 1035-1037, Aug. 1994.

D. Jung, S. K. Shin, C. Lee and Y. C. Chung, "Wavelength-division-multiplexed passive optical network based on spectrum-slicing technique", IEEE Photon. Technol. Lett., vol. 10, no. 9, pp. 1334-1336, Sep. 1998.

P. Healey, P. Townsend, C. Ford, L. Johnston, P. Townley, I. Lealman, L. Rivers, S. Perrin and R. Moore, "Spectral slicing WDM-PON using wavelength-seeded reflective SOAs", Electron. Lett., vol. 37, no. 19, pp. 1181-1182, Sep. 2001.

A. Keating and D. Sampson, "Reduction of excess intensity noise in spectrum-sliced incoherent light for WDM applications", J. Lightw. Technol., vol. 15, no. 1, pp. 53-61, Jan. 1997.

S. Kim, J. Han, J. Lee and C. Park, "Intensity noise suppression in spectrum-sliced incoherent light communications systems using a gain-saturated semiconductor optical amplifier", IEEE Photon. Technol. Lett., vol. 11, no. 8, pp. 1042-1044, Aug. 1999.

A. D. McCoy, P. Horak, B. C. Thomsen, M. Ibsen and D. J. Richardson, "Noise suppression of incoherent light using a gain-saturated SOA: Implications for spectrum sliced WDM systems", J. Lightw. Technol., vol. 23, no. 8, pp. 2399-2409, Aug. 2005.

A. D. McCoy, B. C. Thomsen, M. Ibsen and D. J. Richardson, "Filtering effects in a spectrum-sliced WDM system using SOA-based noise reduction", IEEE Photon. Technol. Lett., vol. 16, no. 2, pp. 680-682, Feb. 2004.

M. Shtaif and G. Eisenstein, "Experimental study of the statistical properties of nonlinearly amplified signals in semiconductor optical amplifiers", IEEE Photon. Technol. Lett., vol. 9, no. 7, pp. 904-906, Jul. 1997.

M. Zhao, G. Morthier and R. Baets, "Analysis and optimization of intensity noise reduction in spectrum-sliced WDM systems using a saturated semiconductor optical amplifier", IEEE Photon. Technol. Lett., vol. 14, no. 3, pp. 390-392, Mar. 2002.

J. L. Gimlett and N. K. Cheung, "Dispersion penalty analysis for LED/single-mode fiber transmission systems", J. Lightw. Technol., vol. LT-4, no. 9, pp. 1381-1392, Sep. 1986.

G. J. Pendock and D. D. Sampson, "Signal-to-noise ratio of modulated sources of ASE transmitted over dispersive fiber", IEEE Photon. Technol. Lett., vol. 9, no. 7, pp. 1002-1004, Jul. 1997.

P. J. Winzer, H. Kogelnik, C. H. Kim, H. Kim, R. M. Jopson, L. E. Nelson and K. Ramanan, "Receiver impact on first-order PMD outage", IEEE Photon. Technol. Lett., vol. 15, no. 10, pp. 1482-1484, Oct. 2003.

C. J. Youn, K. J. Park, J. H. Lee and Y. C. Chung, "OSNR monitoring technique based on orthogonal delayed-homodyne method", IEEE Photon. Technol. Lett., vol. 14, no. 10, pp. 1469-1471, Oct. 2002.

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