PDM-QPSK vector signal generation by MZM-based optical carrier suppression and direct detection

Xinying Li; Jianjun Yu; Jiangnan Xiao; Nan Chi; Yuming Xu; Long Chen

doi:10.1016/j.optcom.2015.07.027

PDM-QPSK vector signal generation by MZM-based optical carrier suppression and direct detection

Xinying Li^*, Jianjun Yu, Jiangnan Xiao, Nan Chi, Yuming Xu, Long Chen

^*Corresponding author for this work

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

11 Citations (Scopus)

Abstract

Abstract We experimentally demonstrate the generation of polarization-division-multiplexing quadrature-phase-shift-keying (PDM-QPSK) modulated vector signal adopting Mach-Zehnder-modulator-based (MZM-based) optical-carrier-suppression (OCS) intensity modulation and direct detection. The MZM is driven by a 6-GHz precoded vector signal carrying 2-Gbaud QPSK transmitter data, and biased at its minimum transmission point to realize OCS modulation. The phase of the 6-GHz precoded vector signal is 1/2 of that of the regular QPSK symbol. Only one polarization beam splitter (PBS) is needed to implement optical polarization diversity. The bit-error rate (BER) for the 2-Gbaud PDM-QPSK modulated vector signal can reach the hard-decision forward-error-correction (HD-FEC) threshold of 3.8×10^-3 after 80-km single-mode fiber-28 (SMF-28) transmission in the presence of optical dispersion compensation, and 80-km SMF-28 transmission causes no power penalty.

Original language	English
Article number	20319
Pages (from-to)	538-542
Number of pages	5
Journal	Optics Communications
Volume	355
DOIs	https://doi.org/10.1016/j.optcom.2015.07.027
Publication status	Published - 21 Jul 2015
Externally published	Yes

Keywords

Intensity modulation and direct detection
Optical carrier suppression (OCS)
Phase precoding
Photonic vector signal generation
Polarization multiplexing

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@article{e44357e30c5145c09a6111386421ba7a,

title = "PDM-QPSK vector signal generation by MZM-based optical carrier suppression and direct detection",

abstract = "Abstract We experimentally demonstrate the generation of polarization-division-multiplexing quadrature-phase-shift-keying (PDM-QPSK) modulated vector signal adopting Mach-Zehnder-modulator-based (MZM-based) optical-carrier-suppression (OCS) intensity modulation and direct detection. The MZM is driven by a 6-GHz precoded vector signal carrying 2-Gbaud QPSK transmitter data, and biased at its minimum transmission point to realize OCS modulation. The phase of the 6-GHz precoded vector signal is 1/2 of that of the regular QPSK symbol. Only one polarization beam splitter (PBS) is needed to implement optical polarization diversity. The bit-error rate (BER) for the 2-Gbaud PDM-QPSK modulated vector signal can reach the hard-decision forward-error-correction (HD-FEC) threshold of 3.8×10-3 after 80-km single-mode fiber-28 (SMF-28) transmission in the presence of optical dispersion compensation, and 80-km SMF-28 transmission causes no power penalty.",

keywords = "Intensity modulation and direct detection, Optical carrier suppression (OCS), Phase precoding, Photonic vector signal generation, Polarization multiplexing",

author = "Xinying Li and Jianjun Yu and Jiangnan Xiao and Nan Chi and Yuming Xu and Long Chen",

note = "Publisher Copyright: {\textcopyright} 2015 Elsevier B.V.",

year = "2015",

month = jul,

day = "21",

doi = "10.1016/j.optcom.2015.07.027",

language = "English",

volume = "355",

pages = "538--542",

journal = "Optics Communications",

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TY - JOUR

T1 - PDM-QPSK vector signal generation by MZM-based optical carrier suppression and direct detection

AU - Li, Xinying

AU - Yu, Jianjun

AU - Xiao, Jiangnan

AU - Chi, Nan

AU - Xu, Yuming

AU - Chen, Long

PY - 2015/7/21

Y1 - 2015/7/21

N2 - Abstract We experimentally demonstrate the generation of polarization-division-multiplexing quadrature-phase-shift-keying (PDM-QPSK) modulated vector signal adopting Mach-Zehnder-modulator-based (MZM-based) optical-carrier-suppression (OCS) intensity modulation and direct detection. The MZM is driven by a 6-GHz precoded vector signal carrying 2-Gbaud QPSK transmitter data, and biased at its minimum transmission point to realize OCS modulation. The phase of the 6-GHz precoded vector signal is 1/2 of that of the regular QPSK symbol. Only one polarization beam splitter (PBS) is needed to implement optical polarization diversity. The bit-error rate (BER) for the 2-Gbaud PDM-QPSK modulated vector signal can reach the hard-decision forward-error-correction (HD-FEC) threshold of 3.8×10-3 after 80-km single-mode fiber-28 (SMF-28) transmission in the presence of optical dispersion compensation, and 80-km SMF-28 transmission causes no power penalty.

AB - Abstract We experimentally demonstrate the generation of polarization-division-multiplexing quadrature-phase-shift-keying (PDM-QPSK) modulated vector signal adopting Mach-Zehnder-modulator-based (MZM-based) optical-carrier-suppression (OCS) intensity modulation and direct detection. The MZM is driven by a 6-GHz precoded vector signal carrying 2-Gbaud QPSK transmitter data, and biased at its minimum transmission point to realize OCS modulation. The phase of the 6-GHz precoded vector signal is 1/2 of that of the regular QPSK symbol. Only one polarization beam splitter (PBS) is needed to implement optical polarization diversity. The bit-error rate (BER) for the 2-Gbaud PDM-QPSK modulated vector signal can reach the hard-decision forward-error-correction (HD-FEC) threshold of 3.8×10-3 after 80-km single-mode fiber-28 (SMF-28) transmission in the presence of optical dispersion compensation, and 80-km SMF-28 transmission causes no power penalty.

KW - Intensity modulation and direct detection

KW - Optical carrier suppression (OCS)

KW - Phase precoding

KW - Photonic vector signal generation

KW - Polarization multiplexing

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DO - 10.1016/j.optcom.2015.07.027

M3 - Article

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SN - 0030-4018

VL - 355

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EP - 542

JO - Optics Communications

JF - Optics Communications

M1 - 20319

ER -

PDM-QPSK vector signal generation by MZM-based optical carrier suppression and direct detection

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Keywords

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