C-band 312Gbps PAM8 Transmission Over 30km SMF Using Integrated Optical Dispersion Compensator

Intensity modulation-direct detection (IM/DD) technology is considered a low-cost, high-capacity, and low-latency solution for short-reach optical connection applications such as data center networks (DCNs) and passive optical networks (PONs), but chromatic dispersion (CD) is the main factor limitin...

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Bibliographic Details
Published in:Journal of lightwave technology 2024-11, p.1-7
Main Authors: Zhu, Bowen, Wei, Jinlong, Du, Zhenmin, Chen, Hongwei, Li, Chao, Yang, Zhenyi, Pi, Yazhi, Wang, Lei, Cao, Zizheng, Yu, Shaohua
Format: Article
Language:English
Subjects:
Bandwidth
Chirped waveguide Bragg grating
chromatic dispersion
Dispersion
Modulation
optical dispersion compensator
Optical fiber dispersion
Optical fibers
Optical filters
Optical modulation
Optical reflection
Optical waveguides
Passive optical networks
silicon photonics
vestigial sideband modulation
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Summary:Intensity modulation-direct detection (IM/DD) technology is considered a low-cost, high-capacity, and low-latency solution for short-reach optical connection applications such as data center networks (DCNs) and passive optical networks (PONs), but chromatic dispersion (CD) is the main factor limiting transmission distance. The development of silicon photonics technology has greatly reduced the size of optical dispersion compensators (ODCs) and is expected to replace traditional dispersion compensation fibers. In this paper, we demonstrate a compact ODC based on an on-chip chirped waveguide Bragg grating (CWBG) that simultaneously achieves large dispersion and wide bandwidth. On-chip ODC-enabled C-band beyond 200Gbps net data rate PAM4/PAM8 transmission over 30km single-mode fiber (SMF), and optical vestigial sideband (VSB) PAM4 signal transmission over 25km SMF, are demonstrated with simple receiver digital signal processing (DSP) and low latency.
ISSN:0733-8724
1558-2213
DOI:10.1109/JLT.2024.3498914