Nigerian ODM Single Fiber Bidirectional 100G

Single-fiber bidirectional 100G (BiDi) transceivers enable full-duplex 100G communication over a single single-mode fiber, reducing fiber usage while supporting distances up to 80 km depending on the module.

Overview

Single-fiber bidirectional (BiDi) 100G transceivers, typically in the QSFP28 form factor, allow full-duplex 100G Ethernet over a single strand of single-mode fiber (SMF) by using Wavelength Division Multiplexing (WDM). This means the transceiver transmits and receives on different wavelengths over the same fiber, effectively halving fiber requirements compared to traditional dual-fiber solutions like 100G LR4/ER4 .

Key Features

• Transmission Distance: Depending on the module, BiDi 100G transceivers support distances from 10 km to 80 km. For example, Skylane Optics offers modules up to 40 km, while EdgeOptic's BIDI-100G-QSFP28-80B supports 80 km over OS2 SMF with FEC enabled .
• Wavelengths: BiDi modules use different wavelengths for upstream and downstream signals. Common pairs include 1291/1311 nm or multiple LAN WDM channels for longer distances .
• Interface: Typically uses duplex LC connectors, simplifying deployment in existing fiber infrastructure .
• Compatibility: Fully compatible with mainstream switches and routers, supporting plug-and-play deployment .
• Temperature Range: Industrial-grade modules can operate from -40°C to +85°C, while standard modules cover 0°C to 70°C .
• Bandwidth Efficiency: Each direction carries 4x25 Gb/s NRZ for a total of 100G aggregate line rate, with some modules supporting error correction (FEC) for long-distance reliability .

Applications

• Data Center Interconnects (DCI): Efficiently connects multiple data centers while conserving fiber resources.
• Metro Networks: Ideal for urban backbone networks where fiber availability is limited.
• Telecom Infrastructure: Supports high-speed links for ISPs and carriers, reducing deployment costs.
• Network Upgrades: Enables seamless migration from 10G or 40G networks to 100G without replacing existing fiber .

Considerations for Nigeria

While specific Nigerian suppliers are not listed in the web results, these modules are globally available and can be sourced through distributors or local resellers. Key considerations include:

• Fiber Type: Ensure single-mode fiber (OS2) is available for long-distance BiDi deployment.
• Distance Requirements: Choose modules based on the required link length (10 km, 20 km, 40 km, or 80 km).
• Power and Cooling: Verify that the operating environment supports the module's temperature and power specifications.
• Vendor Support: Opt for suppliers offering lifetime warranty and technical support, especially for mission-critical networks .

Conclusion

Single-fiber bidirectional 100G transceivers provide a cost-effective, fiber-efficient solution for high-speed network deployments in Nigeria, suitable for data centers, metro networks, and telecom backbones. By leveraging WDM technology, these modules maintain full-duplex 100G connectivity while reducing fiber usage and simplifying network upgrades. Selecting the right module depends on distance, fiber type, and environmental conditions, with options ranging from 10 km to 80 km reach.