Optical I/Q modulation utilizing dual-drive MZM for fiber-wireless integration system at Ka-band

Fan Li; Zibin Li; Dongdong Zou; Xiaohui Feng; Li Ding; Zizheng Cao; Zhaohui Li

doi:10.1364/OL.44.004235

Optical I/Q modulation utilizing dual-drive MZM for fiber-wireless integration system at K_a-band

Fan Li
, Zibin Li
, Dongdong Zou
, Xiaohui Feng
, Li Ding
, Zizheng Cao (Corresponding author)
, Zhaohui Li

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

14 Citations (Scopus)

620 Downloads (Pure)

Abstract

In this Letter, a fiber-wireless integration system at K _a-band adopting heterodyne coherent detection is proposed and experimentally demonstrated. Optical I/Q up-conversion is realized with a low-cost dual-drive Mach–Zehnder modulator (DD-MZM) instead of the traditional I/Q nested MZM. To avoid non-convergence during constant-modulus-algorithm-based equalization, DC elimination is applied to suppress the ultra-high peak in the frequency domain after frequency down-conversion and symbol-phase-average-processing-based coarse phase noise estimation. Using DD-MZM for optical I/Q modulation, transmission, and reception of single polarization, 20-Gbit/s quadrature phase shift keying (QPSK) over 40-km single-mode fiber (SMF) and 5-m free space at K _a-band is demonstrated.

Original language	English
Pages (from-to)	4235-4238
Number of pages	4
Journal	Optics Letters
Volume	44
Issue number	17
DOIs	https://doi.org/10.1364/OL.44.004235
Publication status	Published - 1 Sept 2019

Funding

Funding. National Key R&D Program of China (2018YFB1801300); National Natural Science Foundation of China (NSFC) (61601199); Local Innovation and Research Teams Project of Guangdong Pearl River Talents Program (2017BT01X121); Science and Technology Planning Project of Guangdong Province (2017B010123005, 2018B010114002).

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10.1364/OL.44.004235

published versionFinal published version, 1.9 MBLicence: TAVERNE

Cite this

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title = "Optical I/Q modulation utilizing dual-drive MZM for fiber-wireless integration system at Ka-band",

abstract = "In this Letter, a fiber-wireless integration system at K a-band adopting heterodyne coherent detection is proposed and experimentally demonstrated. Optical I/Q up-conversion is realized with a low-cost dual-drive Mach{\textendash}Zehnder modulator (DD-MZM) instead of the traditional I/Q nested MZM. To avoid non-convergence during constant-modulus-algorithm-based equalization, DC elimination is applied to suppress the ultra-high peak in the frequency domain after frequency down-conversion and symbol-phase-average-processing-based coarse phase noise estimation. Using DD-MZM for optical I/Q modulation, transmission, and reception of single polarization, 20-Gbit/s quadrature phase shift keying (QPSK) over 40-km single-mode fiber (SMF) and 5-m free space at K a-band is demonstrated.",

author = "Fan Li and Zibin Li and Dongdong Zou and Xiaohui Feng and Li Ding and Zizheng Cao and Zhaohui Li",

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AU - Li, Fan

AU - Li, Zibin

AU - Zou, Dongdong

AU - Feng, Xiaohui

AU - Ding, Li

AU - Cao, Zizheng

AU - Li, Zhaohui

PY - 2019/9/1

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AB - In this Letter, a fiber-wireless integration system at K a-band adopting heterodyne coherent detection is proposed and experimentally demonstrated. Optical I/Q up-conversion is realized with a low-cost dual-drive Mach–Zehnder modulator (DD-MZM) instead of the traditional I/Q nested MZM. To avoid non-convergence during constant-modulus-algorithm-based equalization, DC elimination is applied to suppress the ultra-high peak in the frequency domain after frequency down-conversion and symbol-phase-average-processing-based coarse phase noise estimation. Using DD-MZM for optical I/Q modulation, transmission, and reception of single polarization, 20-Gbit/s quadrature phase shift keying (QPSK) over 40-km single-mode fiber (SMF) and 5-m free space at K a-band is demonstrated.

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Optical I/Q modulation utilizing dual-drive MZM for fiber-wireless integration system at K_a-band

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