In-service chromatic dispersion monitoring based on imperfect phase tuned delay interferometer for NRZ-DPSK systems

Jian Zhao; Zhaohui Li; K. K. Qureshi; Pak Tao Lau; Chao Lu; Hwa Yaw Tam

doi:10.1117/12.850017

In-service chromatic dispersion monitoring based on imperfect phase tuned delay interferometer for NRZ-DPSK systems

Jian Zhao, Zhaohui Li, K. K. Qureshi, Pak Tao Lau, Chao Lu, Hwa Yaw Tam

The Hong Kong Polytechnic University

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

Abstract

Differential phase-shift keying (DPSK) modulation format has been widely employed in high speed long haul transmission systems. The DPSK modulation format is a promising technique to increase the system performance, for example: extending the transmission distance, reducing the OSNR requirement and suppressing the nonlinearity. So the optical signal performance monitoring is quite necessary and indispensible for this modulation format. In this paper, a chromatic dispersion (CD) monitoring method for DPSK signals has been demonstrated using an optical delay interferometer with imperfect phase adjustment. We found the eye diagrams shown inclination with the combination effect of phase error and residual CD. This method can not only be used for CD monitoring but also can discriminate dispersion polarity. The CD monitoring range could cover from -425 to +425ps/nm of 10 GHz NRZ-DPSK system.

Original language	English
Title of host publication	Optical Transmission Systems, Switching, and Subsystems VII
Volume	7632
DOIs	https://doi.org/10.1117/12.850017
Publication status	Published - 1 Dec 2009
Event	Optical Transmission Systems, Switching, and Subsystems VII - Shanghai, China Duration: 2 Nov 2009 → 6 Nov 2009

Conference

Conference	Optical Transmission Systems, Switching, and Subsystems VII
Country/Territory	China
City	Shanghai
Period	2/11/09 → 6/11/09

Keywords

Chromatic dispersion
Differential phase-shift keying
Optical fiber communication
Optical performance monitoring

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

More information

10.1117/12.850017

Cite this

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title = "In-service chromatic dispersion monitoring based on imperfect phase tuned delay interferometer for NRZ-DPSK systems",

abstract = "Differential phase-shift keying (DPSK) modulation format has been widely employed in high speed long haul transmission systems. The DPSK modulation format is a promising technique to increase the system performance, for example: extending the transmission distance, reducing the OSNR requirement and suppressing the nonlinearity. So the optical signal performance monitoring is quite necessary and indispensible for this modulation format. In this paper, a chromatic dispersion (CD) monitoring method for DPSK signals has been demonstrated using an optical delay interferometer with imperfect phase adjustment. We found the eye diagrams shown inclination with the combination effect of phase error and residual CD. This method can not only be used for CD monitoring but also can discriminate dispersion polarity. The CD monitoring range could cover from -425 to +425ps/nm of 10 GHz NRZ-DPSK system.",

keywords = "Chromatic dispersion, Differential phase-shift keying, Optical fiber communication, Optical performance monitoring",

author = "Jian Zhao and Zhaohui Li and Qureshi, {K. K.} and Lau, {Pak Tao} and Chao Lu and Tam, {Hwa Yaw}",

year = "2009",

month = dec,

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doi = "10.1117/12.850017",

language = "English",

isbn = "9780819480347",

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booktitle = "Optical Transmission Systems, Switching, and Subsystems VII",

note = "Optical Transmission Systems, Switching, and Subsystems VII ; Conference date: 02-11-2009 Through 06-11-2009",

}

Zhao, J, Li, Z, Qureshi, KK, Lau, PT , Lu, C & Tam, HY 2009, In-service chromatic dispersion monitoring based on imperfect phase tuned delay interferometer for NRZ-DPSK systems. in Optical Transmission Systems, Switching, and Subsystems VII. vol. 7632, 76322V, Optical Transmission Systems, Switching, and Subsystems VII, Shanghai, China, 2/11/09. https://doi.org/10.1117/12.850017

In-service chromatic dispersion monitoring based on imperfect phase tuned delay interferometer for NRZ-DPSK systems. / Zhao, Jian; Li, Zhaohui; Qureshi, K. K. et al.
Optical Transmission Systems, Switching, and Subsystems VII. Vol. 7632 2009. 76322V.

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

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AU - Zhao, Jian

AU - Li, Zhaohui

AU - Qureshi, K. K.

AU - Lau, Pak Tao

AU - Lu, Chao

AU - Tam, Hwa Yaw

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AB - Differential phase-shift keying (DPSK) modulation format has been widely employed in high speed long haul transmission systems. The DPSK modulation format is a promising technique to increase the system performance, for example: extending the transmission distance, reducing the OSNR requirement and suppressing the nonlinearity. So the optical signal performance monitoring is quite necessary and indispensible for this modulation format. In this paper, a chromatic dispersion (CD) monitoring method for DPSK signals has been demonstrated using an optical delay interferometer with imperfect phase adjustment. We found the eye diagrams shown inclination with the combination effect of phase error and residual CD. This method can not only be used for CD monitoring but also can discriminate dispersion polarity. The CD monitoring range could cover from -425 to +425ps/nm of 10 GHz NRZ-DPSK system.

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In-service chromatic dispersion monitoring based on imperfect phase tuned delay interferometer for NRZ-DPSK systems

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Keywords

ASJC Scopus subject areas

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