Heterodyne coherent detection of WDM PDMQPSK signals with spectral efficiency of 4b/s/Hz

Xinying Li; Ze Dong; Jianjun Yu; Jianguo Yu; Nan Chi

doi:10.1364/OE.21.008808

Heterodyne coherent detection of WDM PDMQPSK signals with spectral efficiency of 4b/s/Hz

Xinying Li^*
, Ze Dong
, Jianjun Yu
, Jianguo Yu
, Nan Chi

^*Corresponding author for this work

Fudan University
ZTE Corporation
Beijing University of Posts and Telecommunications

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

20 Citations (Scopus)

Abstract

We experimentally demonstrate heterodyne coherent detection of 8 × 112-Gb/s ultra-density wavelength-division-multiplexing (WDM) polarization-division-multiplexing quadrature-phase-shift-keying (PDMQPSK) signal after 1120-km single-mode fiber-28 (SMF-28) transmission. The spectral efficiency (SE) is 4b/s/Hz. It is the first time to realize WDM signal transmission with high SE by adopting heterodyne coherent detection. At the heterodyne coherent receiver, intermediate frequency (IF) down conversion is realized in digital frequency domain after analog-todigital conversion. A digital post filter and 1-bit maximum likelihood sequence estimation (MLSE) adopted after carrier phase estimation (CPE) in the conventional digital-signal-processing (DSP) process is used to suppress the enhanced noise and crosstalk as well as overcome the filtering effects. The bit-error ratio (BER) for all channels is under the forwarderror-correction (FEC) limit of 3.8 × 10-3 after 1120-km SMF-28 transmission.

Original language	English
Pages (from-to)	8808-8814
Number of pages	7
Journal	Optics Express
Volume	21
Issue number	7
DOIs	https://doi.org/10.1364/OE.21.008808
Publication status	Published - 8 Apr 2013
Externally published	Yes

Access to Document

10.1364/OE.21.008808

Cite this

@article{facf6eb47d9f48a29017ccf445d63f35,

title = "Heterodyne coherent detection of WDM PDMQPSK signals with spectral efficiency of 4b/s/Hz",

abstract = "We experimentally demonstrate heterodyne coherent detection of 8 × 112-Gb/s ultra-density wavelength-division-multiplexing (WDM) polarization-division-multiplexing quadrature-phase-shift-keying (PDMQPSK) signal after 1120-km single-mode fiber-28 (SMF-28) transmission. The spectral efficiency (SE) is 4b/s/Hz. It is the first time to realize WDM signal transmission with high SE by adopting heterodyne coherent detection. At the heterodyne coherent receiver, intermediate frequency (IF) down conversion is realized in digital frequency domain after analog-todigital conversion. A digital post filter and 1-bit maximum likelihood sequence estimation (MLSE) adopted after carrier phase estimation (CPE) in the conventional digital-signal-processing (DSP) process is used to suppress the enhanced noise and crosstalk as well as overcome the filtering effects. The bit-error ratio (BER) for all channels is under the forwarderror-correction (FEC) limit of 3.8 × 10-3 after 1120-km SMF-28 transmission.",

author = "Xinying Li and Ze Dong and Jianjun Yu and Jianguo Yu and Nan Chi",

year = "2013",

month = apr,

day = "8",

doi = "10.1364/OE.21.008808",

language = "English",

volume = "21",

pages = "8808--8814",

journal = "Optics Express",

issn = "1094-4087",

publisher = "Optica Publishing Group (formerly OSA)",

number = "7",

}

TY - JOUR

T1 - Heterodyne coherent detection of WDM PDMQPSK signals with spectral efficiency of 4b/s/Hz

AU - Li, Xinying

AU - Dong, Ze

AU - Yu, Jianjun

AU - Yu, Jianguo

AU - Chi, Nan

PY - 2013/4/8

Y1 - 2013/4/8

N2 - We experimentally demonstrate heterodyne coherent detection of 8 × 112-Gb/s ultra-density wavelength-division-multiplexing (WDM) polarization-division-multiplexing quadrature-phase-shift-keying (PDMQPSK) signal after 1120-km single-mode fiber-28 (SMF-28) transmission. The spectral efficiency (SE) is 4b/s/Hz. It is the first time to realize WDM signal transmission with high SE by adopting heterodyne coherent detection. At the heterodyne coherent receiver, intermediate frequency (IF) down conversion is realized in digital frequency domain after analog-todigital conversion. A digital post filter and 1-bit maximum likelihood sequence estimation (MLSE) adopted after carrier phase estimation (CPE) in the conventional digital-signal-processing (DSP) process is used to suppress the enhanced noise and crosstalk as well as overcome the filtering effects. The bit-error ratio (BER) for all channels is under the forwarderror-correction (FEC) limit of 3.8 × 10-3 after 1120-km SMF-28 transmission.

AB - We experimentally demonstrate heterodyne coherent detection of 8 × 112-Gb/s ultra-density wavelength-division-multiplexing (WDM) polarization-division-multiplexing quadrature-phase-shift-keying (PDMQPSK) signal after 1120-km single-mode fiber-28 (SMF-28) transmission. The spectral efficiency (SE) is 4b/s/Hz. It is the first time to realize WDM signal transmission with high SE by adopting heterodyne coherent detection. At the heterodyne coherent receiver, intermediate frequency (IF) down conversion is realized in digital frequency domain after analog-todigital conversion. A digital post filter and 1-bit maximum likelihood sequence estimation (MLSE) adopted after carrier phase estimation (CPE) in the conventional digital-signal-processing (DSP) process is used to suppress the enhanced noise and crosstalk as well as overcome the filtering effects. The bit-error ratio (BER) for all channels is under the forwarderror-correction (FEC) limit of 3.8 × 10-3 after 1120-km SMF-28 transmission.

UR - https://www.scopus.com/pages/publications/84875989044

U2 - 10.1364/OE.21.008808

DO - 10.1364/OE.21.008808

M3 - Article

C2 - 23571970

AN - SCOPUS:84875989044

SN - 1094-4087

VL - 21

SP - 8808

EP - 8814

JO - Optics Express

JF - Optics Express

IS - 7

ER -

Heterodyne coherent detection of WDM PDMQPSK signals with spectral efficiency of 4b/s/Hz

Abstract

Access to Document

Other files and links

Fingerprint

Cite this