Manufacturer s Active Optical Cable NRZ

Active Optical Cables (AOCs) with NRZ modulation are high-speed fiber assemblies designed for data center and networking applications, offered by manufacturers like TE Connectivity, NVIDIA Mellanox, Amphenol, and Extreme Networks.

Overview of NRZ Active Optical Cables

Active Optical Cables (AOCs) use optical fiber and integrated transceivers to transmit data at high speeds over longer distances than copper cables, while maintaining low latency and signal integrity. NRZ (Non-Return-to-Zero) modulation is commonly used for line rates up to 25Gb/s per lane, providing reliable performance for 10G, 25G, 50G, 100G, and 200G applications .

Key Manufacturers and Products

TE Connectivity offers a broad portfolio of AOCs supporting 4G to 112G speeds, including QSFP, QSFP+, and QSFP-DD form factors. Their QSFP-DD cables support 28Gbps NRZ per lane and are suitable for high-performance computing and data center interconnects . NVIDIA Mellanox LinkX AOCs provide 10G, 25G NRZ, and 50G PAM4 line rates, optimized for GPU-based systems and Ethernet switching networks. These cables use 850nm VCSELs and multi-mode fibers, are fully factory-tested, and ensure low bit error rates for reliable end-to-end performance . Amphenol manufactures QSFP-DD and QSFP28 AOCs, including 200G QSFP-DD cables operating at 25Gb/s NRZ per lane, doubling port density compared to 100G QSFP28 AOCs. Their products are designed for high-capacity networks and data center applications, supporting distances up to 100 meters over parallel multimode fiber . Amphenol also offers ruggedized transceivers like the SCFF and LEAP® On-Board Transceivers for harsh environments . Extreme Networks provides QSFP28 AOCs compatible with 100Gbps connections over multi-mode fiber. These cables are hot-pluggable, RoHS-compliant, and offer a lightweight alternative to copper, simplifying cable management in racks and adjacent racks .

Applications and Advantages

• Data Centers: High-speed interconnects between switches, servers, and storage devices.
• High-Performance Computing: Short-range, low-latency connections for GPU clusters.
• Networking: Scalable solutions for 10G–200G Ethernet links. Advantages of NRZ AOCs include longer reach than copper, reduced electromagnetic interference, lightweight and flexible cabling, and simplified maintenance due to integrated optics .

Summary

NRZ Active Optical Cables are widely available from leading manufacturers, offering high-speed, reliable, and flexible solutions for modern networking and data center environments. When selecting an AOC, consider line rate, form factor (QSFP, QSFP-DD), distance, and environmental requirements to match your system architecture and performance needs.