Rayleigh noise reduction in 10-Gb/s DWDM-PONs by wavelength detuning and phase-modulation-induced spectral broadening

C. W. Chow; G. Talli; P. D. Townsend

doi:10.1109/LPT.2007.892899

Rayleigh noise reduction in 10-Gb/s DWDM-PONs by wavelength detuning and phase-modulation-induced spectral broadening

C. W. Chow
, G. Talli
, P. D. Townsend

University College Cork

Research output: Contribution to journal › Article › peer-review

Abstract

A novel scheme for reducing Rayleigh beat noise in centralized light source dense wavelength-division-multiplexed passive optical networks is demonstrated using an optimized channel-detuned optical filtering of 30 GHz and phase-modulation-induced spectral broadening of a 10-Gb/s upstream nonreturn-to-zero (PM-NRZ) signal. The required optical-signal-to-Rayleigh- noise-ratio (OSRNR), characterized experimentally, can be reduced by up to 16 dB while retaining negligible transmission penalty over 20-km single-mode fiber without dispersion compensation. Numerical analysis is performed to study the tradeoff between OSRNR improvement and attenuation of the PM-NRZ signal as a function of different channel detuning and center wavelength suppressions.

Original language	English
Pages (from-to)	423-425
Number of pages	3
Journal	IEEE Photonics Technology Letters
Volume	19
Issue number	6
DOIs	https://doi.org/10.1109/LPT.2007.892899
Publication status	Published - 15 Mar 2007

Keywords

Passive optical network (PON)
Phase modulation
Rayleigh backscattering (RB)

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10.1109/LPT.2007.892899

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title = "Rayleigh noise reduction in 10-Gb/s DWDM-PONs by wavelength detuning and phase-modulation-induced spectral broadening",

abstract = "A novel scheme for reducing Rayleigh beat noise in centralized light source dense wavelength-division-multiplexed passive optical networks is demonstrated using an optimized channel-detuned optical filtering of 30 GHz and phase-modulation-induced spectral broadening of a 10-Gb/s upstream nonreturn-to-zero (PM-NRZ) signal. The required optical-signal-to-Rayleigh- noise-ratio (OSRNR), characterized experimentally, can be reduced by up to 16 dB while retaining negligible transmission penalty over 20-km single-mode fiber without dispersion compensation. Numerical analysis is performed to study the tradeoff between OSRNR improvement and attenuation of the PM-NRZ signal as a function of different channel detuning and center wavelength suppressions.",

keywords = "Passive optical network (PON), Phase modulation, Rayleigh backscattering (RB)",

author = "Chow, \{C. W.\} and G. Talli and Townsend, \{P. D.\}",

year = "2007",

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doi = "10.1109/LPT.2007.892899",

language = "English",

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T1 - Rayleigh noise reduction in 10-Gb/s DWDM-PONs by wavelength detuning and phase-modulation-induced spectral broadening

AU - Chow, C. W.

AU - Talli, G.

AU - Townsend, P. D.

PY - 2007/3/15

Y1 - 2007/3/15

N2 - A novel scheme for reducing Rayleigh beat noise in centralized light source dense wavelength-division-multiplexed passive optical networks is demonstrated using an optimized channel-detuned optical filtering of 30 GHz and phase-modulation-induced spectral broadening of a 10-Gb/s upstream nonreturn-to-zero (PM-NRZ) signal. The required optical-signal-to-Rayleigh- noise-ratio (OSRNR), characterized experimentally, can be reduced by up to 16 dB while retaining negligible transmission penalty over 20-km single-mode fiber without dispersion compensation. Numerical analysis is performed to study the tradeoff between OSRNR improvement and attenuation of the PM-NRZ signal as a function of different channel detuning and center wavelength suppressions.

AB - A novel scheme for reducing Rayleigh beat noise in centralized light source dense wavelength-division-multiplexed passive optical networks is demonstrated using an optimized channel-detuned optical filtering of 30 GHz and phase-modulation-induced spectral broadening of a 10-Gb/s upstream nonreturn-to-zero (PM-NRZ) signal. The required optical-signal-to-Rayleigh- noise-ratio (OSRNR), characterized experimentally, can be reduced by up to 16 dB while retaining negligible transmission penalty over 20-km single-mode fiber without dispersion compensation. Numerical analysis is performed to study the tradeoff between OSRNR improvement and attenuation of the PM-NRZ signal as a function of different channel detuning and center wavelength suppressions.

KW - Passive optical network (PON)

KW - Phase modulation

KW - Rayleigh backscattering (RB)

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DO - 10.1109/LPT.2007.892899

M3 - Article

AN - SCOPUS:58049187833

SN - 1041-1135

VL - 19

SP - 423

EP - 425

JO - IEEE Photonics Technology Letters

JF - IEEE Photonics Technology Letters

IS - 6

ER -

Rayleigh noise reduction in 10-Gb/s DWDM-PONs by wavelength detuning and phase-modulation-induced spectral broadening

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Keywords

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