Cryogenic Oxide-VCSEL for PAM-4 Optical Data Transmission Over 50 Gb/s at 77 K

Wenning Fu,Haonan Wu, Dufei Wua,Milton Feng,Dennis Deppe

IEEE Photonics Technology Letters（2021）

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摘要

To meet the rising demand for a high-speed and power-efficient optical link for cryogenic data operation, we report a 6.8- μm oxide-aperture VCSEL with a record bandwidth ≥50 GHz at cryogenic temperatures. A high-speed packaged oxide-VCSEL demonstrates optical data transmission capability from 12.5 to 44 Gb/s NRZ and 51.56 Gb/s PAM-4 at 77K.

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关键词

Vertical-cavity surface-emitting lasers,optical fiber communication,optical interconnects,cryogenics,high speed modulation,data transfer

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