Coherent Optical Module SFP 2026

Coherent's 2026 optical modules showcase next-generation pluggable transceivers from 1.6T to 12.8T, leveraging Silicon Photonics, InP, and VCSEL technologies for AI-driven data center connectivity.

Overview of 2026 Coherent Optical Modules

At OFC 2026, Coherent demonstrated a broad portfolio of pluggable optical modules designed for high-speed, scalable, and power-efficient data center interconnects. These modules span 1.6T, 3.2T, and emerging 12.8T architectures, supporting AI and cloud infrastructure requirements . The modules integrate multiple optical technologies, including:

• Silicon Photonics (SiPh) Photonic Integrated Circuits (PICs) for high-density, low-power optical links
• Indium Phosphide (InP) continuous-wave lasers and 200G EMLs for high-speed coherent transmission
• 200G GaAs VCSELs for efficient short-reach connectivity

1.6T OSFP Modules

The 1.6T OSFP optical modules are designed for ultra-high bandwidth AI data centers. Key features include:

• 200G PAM4 per lane, delivering stable high-speed optical links
• Advanced signal integrity and bit error rate (BER) performance
• Seamless integration with next-generation switching platforms
• Support for multiple architectures within the 1.6T transceiver portfolio These modules enable rapid scaling of AI infrastructure while maintaining energy efficiency and reliability.

3.2T and Beyond

For 3.2T transceivers, Coherent demonstrated:

• 400G per lane PAM4 optical links
• Implementations using 400G Differential EML and silicon photonics PICs with PN junction Mach-Zehnder modulators
• Multi-lane XPO pluggable MSA form factors for enhanced system design flexibility and optimized power/performance Looking further ahead, Coherent is exploring 12.8T and higher architectures, emphasizing multi-lane designs to support future AI and high-performance computing workloads.

Co-Packaged Optics (CPO) and Multi-Rail Architecture

Coherent also showcased co-packaged optics (CPO) solutions, including:

• 6.4T socketed CPO using silicon photonics paired with high-power InP lasers
• Multimode socketed CPO with high-speed VCSELs
• InP modulator arrays operating at 400G per lane These innovations address power, space, and cost constraints in hyperscale data centers, enabling scalable AI infrastructure .

Applications and Impact

Coherent's 2026 optical modules are targeted at:

• AI-driven data centers requiring high-bandwidth, low-latency interconnects
• Cloud and hyperscale networks needing scalable, power-efficient solutions
• Next-generation switching and transport platforms supporting multi-terabit throughput By combining multiple optical technologies and form factors, Coherent ensures flexible deployment options and future-proof scalability for evolving data center architectures .