MACOM Technology Solutions announced the availability of two new 448G PAM4 modulator drivers, the MAOM-025408 Mach-Zehnder Driver and the MAOM-022404 EML Driver, designed to support next-generation 1.6T and 3.2T optical transceivers. The drivers enable 400G per lane transmission, facilitating dense, high-performance optical transceivers with energy efficiency for high-capacity data networking in AI, machine learning, and high-performance computing data center architectures.
Both drivers are among the first in the industry to support 400G per lane transmission and use proven high-volume silicon process technology. They are compatible with multiple optical platforms, including silicon photonics, EML (Electro-absorption Modulated Laser), and TFLN (Thin-Film Lithium Niobate) modulators, allowing customers to scale connectivity systems with reduced integration risk.
The MAOM-025408 Mach-Zehnder Driver provides over 120 GHz of RF bandwidth, high gain, output voltage, and excellent linearity. It targets silicon photonics modulators for 300G and 400G PAM4 transmission. The MAOM-022404 EML Driver delivers over 120 GHz of RF bandwidth, high gain, and low power consumption. It is suitable for differential EML and TFLN modulators.
Both drivers are offered as wire-bondable die or bumped die for compact flip-chip packaging, supporting high-volume manufacturing with options for side-by-side and 3D assemblies. No external components are required for biasing, simplifying integration and reducing bill of materials costs for module vendors.
Stephen G. Daly, President and Chief Executive Officer of MACOM, stated that the new 400G per lane driver products support a wide range of advanced interconnect applications and form factors.
The drivers were displayed at MACOM’s Booth 1227 during OFC 2026, held March 17–19, 2026, in Los Angeles, CA. Additional information is available at www.macom.com.
