도쿄공대·요코하마·AIST·PETRA, DSP 축소로 200Gbps PAM4 실리콘 포토닉 변조기 달성

Home TECHNICAL PAPERS October 25th, 2026 - By: Technical Paper Link Researchers from Institute of Science Tokyo, Yokohama National University, AIST, and Photonics Electronics Technology Research Association (PETRA) published a technical paper titled “Reduced-DSP 200G/λ Low-Voltage Slow-Light Silicon Modulator Enabled by Built-In EO Equalizer.” Abstract Excerpt: “Multi-Tb/s optical interconnects for artificial intelligence data centers necessitate high-speed, energy-efficient, and compact transceivers. However, conventional silicon Mach-Zehnder modulators are fundamentally limited by low modulation efficiency and large physical dimensions that typically extend several millimeters, requiring high-swing drivers and power-intensive digital signal processing to achieve data rates exceeding 100 Gb/s per lane. Here we show a silicon photonic crystal waveguide slow-light modulator that overcomes the bandwidth-efficiency trade-off via a built-in electro-optic equalizer.” Find the technical paper here. October 2026 Kawahara, K., Tsuchizawa, T., Yamamoto, N. et al.Reduced-DSP 200G/λ low-voltage slow-light silicon modulator enabled by built-in EO equalizer. 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