Mode-Division Multiplexed PAM-4 Signal Transmission in a Silicon Photonic Chip

Weifeng Zhang; Houman Ghorbani; Tong Shao; Jianping Yao

doi:10.1109/MWP.2019.8892155

Mode-Division Multiplexed PAM-4 Signal Transmission in a Silicon Photonic Chip

Weifeng Zhang, Houman Ghorbani, Tong Shao, Jianping Yao

University of Ottawa

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Emerging 5G mobile networks and cloud computing applications are driving the demand for an ever-increasing capacity for short-reach optical communications. To meet this demand, mode-division multiplexing (MDM) is being employed to scale up the bandwidth capacity by leveraging the spatial modes of an optical waveguide for transmitting multiple optical signals. On the other hand, the use of PAM-4 can also increase the transmission bandwidth since PAM-4 offers four amplitude levels in a symbol and thus its bit rate is twice as high as OOK at a same baud rate. Therefore, on-chip MDM with PAM-4 is an approach to enhance the transmission capacity in a photonic integrated circuit. In this paper, we report a photonic integrated four-channel MDM circuit that is implemented on a silicon platform with a small size and low channel crosstalk. By using the MDM circuit, a 80 Gbit/s mode-division multiplexed PAM-4 signal transmission system is experimentally demonstrated. The advantage of the approach is that high data capacity on-chip communications is enabled by the photonic integrated MDM circuit with a small footprint. The MDM circuit can be employed in a radio over fiber (RoF) system to increase the data transmission capacity of the RoF link.

Original language	English
Title of host publication	2019 IEEE International Topical Meeting on Microwave Photonics, MWP 2019
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781728136257
DOIs	https://doi.org/10.1109/MWP.2019.8892155
Publication status	Published - Oct 2019
Externally published	Yes
Event	2019 IEEE International Topical Meeting on Microwave Photonics, MWP 2019 - Ottawa, Canada Duration: 7 Oct 2019 → 10 Oct 2019

Publication series

Name	2019 IEEE International Topical Meeting on Microwave Photonics, MWP 2019

Conference

Conference	2019 IEEE International Topical Meeting on Microwave Photonics, MWP 2019
Country/Territory	Canada
City	Ottawa
Period	7/10/19 → 10/10/19

Keywords

PAM-4
mode-division multiplexing
silicon photonics

Access to Document

10.1109/MWP.2019.8892155

Cite this

Zhang, W., Ghorbani, H., Shao, T., & Yao, J. (2019). Mode-Division Multiplexed PAM-4 Signal Transmission in a Silicon Photonic Chip. In 2019 IEEE International Topical Meeting on Microwave Photonics, MWP 2019 Article 8892155 (2019 IEEE International Topical Meeting on Microwave Photonics, MWP 2019). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/MWP.2019.8892155

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title = "Mode-Division Multiplexed PAM-4 Signal Transmission in a Silicon Photonic Chip",

abstract = "Emerging 5G mobile networks and cloud computing applications are driving the demand for an ever-increasing capacity for short-reach optical communications. To meet this demand, mode-division multiplexing (MDM) is being employed to scale up the bandwidth capacity by leveraging the spatial modes of an optical waveguide for transmitting multiple optical signals. On the other hand, the use of PAM-4 can also increase the transmission bandwidth since PAM-4 offers four amplitude levels in a symbol and thus its bit rate is twice as high as OOK at a same baud rate. Therefore, on-chip MDM with PAM-4 is an approach to enhance the transmission capacity in a photonic integrated circuit. In this paper, we report a photonic integrated four-channel MDM circuit that is implemented on a silicon platform with a small size and low channel crosstalk. By using the MDM circuit, a 80 Gbit/s mode-division multiplexed PAM-4 signal transmission system is experimentally demonstrated. The advantage of the approach is that high data capacity on-chip communications is enabled by the photonic integrated MDM circuit with a small footprint. The MDM circuit can be employed in a radio over fiber (RoF) system to increase the data transmission capacity of the RoF link.",

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Zhang, W, Ghorbani, H, Shao, T & Yao, J 2019, Mode-Division Multiplexed PAM-4 Signal Transmission in a Silicon Photonic Chip. in 2019 IEEE International Topical Meeting on Microwave Photonics, MWP 2019., 8892155, 2019 IEEE International Topical Meeting on Microwave Photonics, MWP 2019, Institute of Electrical and Electronics Engineers Inc., 2019 IEEE International Topical Meeting on Microwave Photonics, MWP 2019, Ottawa, Canada, 7/10/19. https://doi.org/10.1109/MWP.2019.8892155

Mode-Division Multiplexed PAM-4 Signal Transmission in a Silicon Photonic Chip. / Zhang, Weifeng; Ghorbani, Houman; Shao, Tong et al.
2019 IEEE International Topical Meeting on Microwave Photonics, MWP 2019. Institute of Electrical and Electronics Engineers Inc., 2019. 8892155 (2019 IEEE International Topical Meeting on Microwave Photonics, MWP 2019).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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Mode-Division Multiplexed PAM-4 Signal Transmission in a Silicon Photonic Chip

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