50gb/S Pam-4 Oxide Vcsel Development Progress At Broadcom
VERTICAL-CAVITY SURFACE-EMITTING LASERS XXI(2017)
摘要
This paper will review the device design and performance of Broadcom's 50Gb/s PAM-4 VCSEL to enable the next generation of transceivers using a PAM-4 advanced modulation scheme at 25-28 GBd. The VCSEL has been optimized to minimize noise and improve dynamic performance for cleaner eyes. Preliminary wear out lifetime studies indicate that the time to 1% failure exceeds 10 years, making the VCSELs suitable for data communication applications.
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关键词
vertical cavity surface emitting laser, 850 nm oxide VCSEL, high speed modulation, small signal modulation, reliability, eye diagram
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