300G transmission channel fiber optic

300G fiber optic transmission is achieved using 12-channel duplex transceivers or active optical cables, each channel supporting up to 25Gbps, enabling high-density, high-speed data links for data centers and HPC applications.

Overview of 300G Fiber Optic Solutions

300G transmission channels typically use 12-lane optical transceivers or active optical cables (AOCs), where each lane operates at approximately 25Gbps, cumulatively achieving 300Gbps total throughput . These solutions are designed for multi-mode fiber (MMF), commonly OM3 or OM4, and operate at 850nm wavelength for short-reach, high-speed interconnects .

Key Technologies

1. LEAP On-Board Transceivers (OBT)

• 12-channel duplex transceiver supporting 25–28Gbps per channel, totaling 300Gbps .
• Optimized for multi-mode fiber and high-density applications in datacenters, supercomputers, and 5G broadband .
• Ruggedized versions provide enhanced durability and reliability, suitable for harsh environments .
• Fully qualified to Telcordia standards, supporting non-standard protocols and high-speed NRZ signaling . 2. CXP2 Active Optical Cables (AOC)
• Pluggable 300G solution using 12x25Gbps VCSEL transmitter and PIN receiver arrays .
• Supports distances up to 100 meters on OM4 multimode fiber .
• Features multi-rate support, digital diagnostics, and per-channel control for Tx/Rx equalization and amplitude adjustments .
• Ideal for high-density switch, router, and server interconnects in HPC and data center environments .

Advantages of 300G Fiber Optic Channels

• High bandwidth density: 12-lane configuration reduces the number of fibers and modules required.
• Low latency and high reliability: Critical for HPC, AI/ML workloads, and 5G infrastructure .
• Scalability: Compatible with existing multi-mode fiber infrastructure and supports future upgrades.
• Energy efficiency: NRZ modulation and optimized SerDes reduce power consumption per bit .

Applications

• Data centers: High-speed interconnects between servers, switches, and storage arrays.
• High-performance computing (HPC): Low-latency, high-throughput links for supercomputers.
• 5G networks: Backhaul and fronthaul connections requiring dense, high-speed optical links.
• Server clustering and chassis interconnects: Multi-lane 300G links enable compact, high-performance fabrics .

Summary

300G fiber optic transmission channels leverage 12-channel duplex transceivers or active optical cables, each lane running at ~25Gbps, to deliver high-speed, low-latency, and scalable optical interconnects. These solutions are widely used in data centers, HPC, and 5G infrastructure, offering high reliability, energy efficiency, and compatibility with multi-mode fiber standards like OM3 and OM4 .