Jordan procures single-fiber bidirectional QSFP-DD

Single-fiber bidirectional QSFP-DD solutions enable Jordan to double fiber capacity and deploy high-speed 100G or 400G links over existing fiber infrastructure.

Overview of Single-

Fiber Bidirectional QSFP-DD TechnologySingle-fiber bidirectional (BiDi) QSFP-DD transceivers allow simultaneous transmission and reception over a single optical fiber, effectively doubling fiber utilization without laying additional fiber. These modules are compatible with QSFP-DD form factors, supporting 100G, 200G, and 400G Ethernet speeds, and can be deployed in data centers, metro, and regional networks.

Key Solutions and Vendors

Coherent 100G ZR QSFP-DCO: This dual-laser module integrates two independently tunable lasers for transmit and local oscillator functions, enabling IP-over-DWDM transmission on a single fiber. It enhances capacity up to 10x on existing 10Gb/s networks while minimizing power consumption.

RAD Bi

Di QSFP28 DD Adaptor: RAD offers a passive BiDi adaptor that converts standard QSFP/SFP transceivers for single-fiber bidirectional operation. It supports bit rates from 1G to 400G and works with multiple wavelengths (1300nm/1550nm), providing 50% fiber savings and quick ROI for service providers. Smartoptics QSFP-DD Transceivers: Smartoptics provides 2x100G single-mode fiber QSFP-DD modules, enabling two independent 100G connections over a single fiber.

These transceivers support coherent DWDM networks, AES-256 encryption, and breakout to 4x100G, making them suitable for brownfield deployments and high-density networking. Benefits for Jordan's NetworkFiber Optimization: Single-fiber BiDi QSFP-DD modules allow Jordan to double the effective fiber capacity without additional cabling. Cost Efficiency: Reduces CapEx and OpEx by minimizing new fiber deployment and leveraging existing infrastructure.

High-

Speed Connectivity: Supports 100G, 200G, and 400G Ethernet, enabling scalable, high-bandwidth links for data centers, metro, and aggregation networks. Simplified Deployment: Passive adaptors and pluggable modules allow easy integration with existing QSFP-DD ports and network equipment. Enhanced Security and Flexibility: Some modules provide AES-256 encryption and support DWDM, ROADM, and breakout configurations for flexible network design.

Deployment Considerations

Compatibility: Ensure QSFP-DD modules are compatible with existing switches, routers, and optical line systems. Wavelength Planning: BiDi modules typically use two wavelengths (e.g., 1310nm/1550nm) for bidirectional operation. Distance and Fiber Type: Single-mode fiber is preferred for long-reach deployments; multimode fiber is suitable for short-range data center links.

Power and Cooling: Coherent and high-speed QSFP-DD modules may require attention to power dissipation and thermal management. By procuring single-fiber bidirectional QSFP-DD transceivers, Jordan can maximize fiber utilization, reduce infrastructure costs, and scale network capacity efficiently while maintaining high-speed, secure connectivity.