Dispersion-monitoring in WDM systems by injecting modulated ASE

Graeme J. Pendock; Xingwen Yi; Changyuan Yu; William Shieh

doi:10.1109/LPT.2008.921827

Dispersion-monitoring in WDM systems by injecting modulated ASE

Graeme J. Pendock, Xingwen Yi, Changyuan Yu, William Shieh

Research output: Journal article publication › Journal article › Academic research › peer-review

7 Citations (Scopus)

Abstract

We demonstrate a technique for measuring the residual dispersion in wavelength-division-multiplexing links by injecting a low level of broadband amplified spontaneous emission that has been modulated with a radio-frequency (RF) tone into the start of the link to be monitored. The residual dispersion at the end of the link is then determined by measuring the RF phase shifts in this tone across different wavelengths. A benefit of this technique is that it does not require integration into the channel transponder and is not constrained to monitoring a fixed wavelength, but instead can be implemented as an independent unit capable of monitoring the link across the band irrespective of channel presence.

Original language	English
Pages (from-to)	821-823
Number of pages	3
Journal	IEEE Photonics Technology Letters
Volume	20
Issue number	10
DOIs	https://doi.org/10.1109/LPT.2008.921827
Publication status	Published - 15 May 2008
Externally published	Yes

Keywords

Monitoring
Optical fiber communication
Optical fiber dispersion
Optical fiber measurements
Optical noise

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering

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10.1109/LPT.2008.921827

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abstract = "We demonstrate a technique for measuring the residual dispersion in wavelength-division-multiplexing links by injecting a low level of broadband amplified spontaneous emission that has been modulated with a radio-frequency (RF) tone into the start of the link to be monitored. The residual dispersion at the end of the link is then determined by measuring the RF phase shifts in this tone across different wavelengths. A benefit of this technique is that it does not require integration into the channel transponder and is not constrained to monitoring a fixed wavelength, but instead can be implemented as an independent unit capable of monitoring the link across the band irrespective of channel presence.",

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AU - Pendock, Graeme J.

AU - Yi, Xingwen

AU - Yu, Changyuan

AU - Shieh, William

PY - 2008/5/15

Y1 - 2008/5/15

N2 - We demonstrate a technique for measuring the residual dispersion in wavelength-division-multiplexing links by injecting a low level of broadband amplified spontaneous emission that has been modulated with a radio-frequency (RF) tone into the start of the link to be monitored. The residual dispersion at the end of the link is then determined by measuring the RF phase shifts in this tone across different wavelengths. A benefit of this technique is that it does not require integration into the channel transponder and is not constrained to monitoring a fixed wavelength, but instead can be implemented as an independent unit capable of monitoring the link across the band irrespective of channel presence.

AB - We demonstrate a technique for measuring the residual dispersion in wavelength-division-multiplexing links by injecting a low level of broadband amplified spontaneous emission that has been modulated with a radio-frequency (RF) tone into the start of the link to be monitored. The residual dispersion at the end of the link is then determined by measuring the RF phase shifts in this tone across different wavelengths. A benefit of this technique is that it does not require integration into the channel transponder and is not constrained to monitoring a fixed wavelength, but instead can be implemented as an independent unit capable of monitoring the link across the band irrespective of channel presence.

KW - Monitoring

KW - Optical fiber communication

KW - Optical fiber dispersion

KW - Optical fiber measurements

KW - Optical noise

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DO - 10.1109/LPT.2008.921827

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JO - IEEE Photonics Technology Letters

JF - IEEE Photonics Technology Letters

IS - 10

ER -

Dispersion-monitoring in WDM systems by injecting modulated ASE

Abstract

Keywords

ASJC Scopus subject areas

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