CE Certified QSFP-DD DML optical modules are high-speed, pluggable transceivers designed for medium to long-distance data center interconnects, supporting Ethernet and InfiniBand protocols with compliance to industry standards.

Overview

QSFP-DD (Quad Small Form-factor Pluggable Double Density) DML modules use Directly Modulated Laser (DML) technology to transmit optical signals over single-mode fiber. These modules are CE certified, ensuring compliance with European safety, electromagnetic compatibility, and environmental standards. They are designed for high-density, high-bandwidth applications in data centers, enterprise networks, and telecom environments.

Key Specifications

• Data Rate: Typically 200G per module (8x25G lanes) for DML variants, with some modules supporting 400G in QSFP-DD form factor using coherent optics .
• Wavelength: Central wavelength around 1310 nm for 200G DML modules .
• Transmission Distance: Up to 20 km over single-mode fiber with Forward Error Correction (FEC) enabled .
• Fiber Type: Single-mode fiber (SMF) with parallel 8-lane architecture (PSM8).
• Interface: QSFP-DD pluggable form factor, compatible with standard QSFP-DD cages and connectors.
• Protocols Supported: Ethernet (100G/200G) and InfiniBand QDR/EDR, with backward compatibility to 8x10G/25G lanes .
• Power Supply: Single 3.3V supply, with low power consumption suitable for high-density racks.
• Management: I2C interface for module monitoring and control, supporting hot-plug operation.

Applications

• Data Center Interconnects (DCI): Rack-to-rack or row-to-row high-speed links.
• Enterprise Networks: High-bandwidth aggregation and core links.
• Telecom Networks: Medium-distance metro and regional optical links.
• AI/ML and HPC Clusters: Low-latency, high-throughput optical interconnects for server disaggregation .

Advantages of DML QSFP-DD Modules

• Cost-effective for medium-range optical links compared to coherent modules.
• Compact QSFP-DD form factor allows high port density in switches and routers.
• CE certification ensures compliance with safety and EMC regulations.
• Scalable for future upgrades in data center and metro networks. In summary, CE Certified QSFP-DD DML optical modules provide a reliable, high-speed, and standards-compliant solution for medium to long-distance optical interconnects, supporting modern Ethernet and InfiniBand protocols while maintaining low power consumption and high port density .