50 Gbit/s PAM4 Data Transmission Over 500-m Single-Mode Fiber Using an 880-nm Single Mode VCSEL

Error-free 50 Gbit/s PAM4 data transmission over 500-m single mode fiber was successfully realized using our oxide-confined 880-nm single-mode high-speed VCSELs. This transmission was accomplished because of the flat frequency response of the VCSEL across a wide bias span. Static characteristics and...

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Bibliographic Details
Published in:IEEE photonics technology letters 2022-11, Vol.34 (22), p.1210-1213
Main Authors: Zhang, Xing, Zhang, Guorui, Wen, Yue, Zhang, Wendou, Li, Hui, Ning, Yongqiang, Ning, Cunzheng, Wang, Lijun, Xu, Wenwei
Format: Article
Language:English
Subjects:
Apertures
Bandwidth
Data communication
Data transmission
Errors
Frequency response
High speed
Modulation
Modules
Optical fiber communication
Power consumption
Room temperature
single mode
Static characteristics
Temperature measurement
VCSEL
Vertical cavity surface emitting lasers
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Summary:Error-free 50 Gbit/s PAM4 data transmission over 500-m single mode fiber was successfully realized using our oxide-confined 880-nm single-mode high-speed VCSELs. This transmission was accomplished because of the flat frequency response of the VCSEL across a wide bias span. Static characteristics and high-speed modulation properties at room temperature and high operation temperature were studied in detail. Data transmission experiments for the 880-nm VCSEL with 4- \mu \text{m} oxide-aperture diameter was performed. A 50-Gbps PAM4 module was packaged for data transmission. Error-free 50 Gbit/s PAM4 data transmission over 500-m single mode fiber was successfully realized. The proposed VCSEL is fit for the 400G DR8 module because of its 500-m single-channel 50 Gbit/s error-free transmission. Compared with commonly used DML, VCSELs are evidently advantageous in cost and power consumption.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2022.3206902