200-Gbps Directly Modulated 1060 nm Single-Mode VCSEL with Metal-aperture Coupled Cavity Achieving a Record Data-rate and Link-length Product of 400-Gbps·km

Key Points

• This achievement enables 200-Gbps data transmission over a distance of 2 km, using single-mode fiber.
• 200-Gbps direct modulation was achieved through the incorporation of highly-strained InGaAs/GaAsP quantum wells.
• The use of a metal-aperture coupled cavity significantly enhances performance in transmission applications.
• Receiver DSP advancements facilitate efficient data handling at high transmission rates.