VI Systems’ VCSEL demonstrates 100-m multimode fiber reach for 200-Gbps PAM4

The demonstration, conducted with what the company called “one of the leading telecom network system companies,” used a VI Systems’ fiber-coupled 850-nm VCSEL module.

Stephen Hardy

Feb. 24, 2022

VCSEL and photodector specialists VI Systems say they have demonstrated single-lane 200-Gbps transmission based on PAM4 over 100 m of 50/125-um multimode fiber. The demonstration, conducted with what the company called “one of the leading telecom network system companies,” used a VI Systems’ fiber-coupled 850-nm VCSEL module.

The experiment highlighted the data transmission benefits of digital signal processing (DSP) functions including timing recovery (TR), partial response (PR), noise cancellation (NC), and maximum likelihood sequence estimation (MLSE), according to VI Systems. IEEE Photonics Technology Letters has published a description of the experiment.

VI Systems will display its line of fiber-coupled VCSEL and photodetector modules at OFC in San Diego, CA, from Mar 8-10, 2022, in Booth 5505.

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About the Author

Stephen Hardy

Editorial Director and Associate Publisher, Lightwave

Stephen Hardy is editorial director and associate publisher of Lightwave and Broadband Technology Report, part of the Lighting & Technology Group at Endeavor Business Media. Stephen is responsible for establishing and executing editorial strategy across the both brands’ websites, email newsletters, events, and other information products. He has covered the fiber-optics space for more than 20 years, and communications and technology for more than 35 years. During his tenure, Lightwave has received awards from Folio: and the American Society of Business Press Editors (ASBPE) for editorial excellence. Prior to joining Lightwave in 1997, Stephen worked for Telecommunications magazine and the Journal of Electronic Defense.

Stephen has moderated panels at numerous events, including the Optica Executive Forum, ECOC, and SCTE Cable-Tec Expo. He also is program director for the Lightwave Innovation Reviews and the Diamond Technology Reviews.

He has written numerous articles in all aspects of optical communications and fiber-optic networks, including fiber to the home (FTTH), PON, optical components, DWDM, fiber cables, packet optical transport, optical transceivers, lasers, fiber optic testing, and more.

You can connect with Stephen on LinkedIn as well as Twitter.