Customized Single-Fiber Bidirectional LPO

Customized Single-Fiber Bidirectional LPO combines Linear Pluggable Optics with single-fiber bidirectional transmission to deliver high-speed, low-latency, and power-efficient optical links.

Overview of LPO Technology

Linear Pluggable Optics (LPO) are optical transceivers that remove the internal DSP (Digital Signal Processor) and shift signal processing to the host device, such as a switch or NIC. This design reduces module complexity, power consumption, and latency while maintaining high linearity and signal integrity.

LP

O modules are optimized for short-reach, high-density connections in data centers, AI/ML clusters, and GPU fabrics, where low latency and high port density are critical. They are compatible with open standards like IEEE 802. 3 and OIF CEI-112G-LINEAR-PAM4.

Single-

Fiber Bidirectional TransmissionSingle-fiber bidirectional (BiDi) transceivers allow simultaneous transmission and reception over a single optical fiber using two distinct wavelengths. For example, the FiberMania 25G BiDi SFP28 transceiver uses 1270nm and 1330nm wavelengths to achieve 25Gbps over distances up to 80 km. This approach reduces fiber infrastructure costs by up to 50% while maintaining high-speed, low-latency connectivity, making it ideal for 5G backhaul, metro aggregation, and long-distance data center interconnects.

Advantages of Customized Single-

Fiber Bi

Di LPOPower Efficiency: By eliminating the DSP in the module, LPO reduces power consumption per link. Low Latency: Shifting signal processing to the host ASIC minimizes processing delays, improving synchronization in high-performance networks. High Port Density: LPO modules support compact form factors like QSFP-DD, OSFP, and SFP28, enabling more ports per switch or NIC.

Cost Savings: Single-fiber BiDi reduces the number of fibers required, lowering deployment and maintenance costs. Scalability: LPO modules can be deployed incrementally, allowing gradual upgrades in data centers or metro networks. Interoperability: LPO MSA specifications ensure compatibility across certified switches, NICs, and modules, supporting multi-vendor ecosystems.

Applications

Data Centers: High-speed server-to-switch connections with low latency and high port density. AI/ML Clusters: GPU fabrics benefit from reduced DSP delays for synchronized training.

Metro and Long-

Haul Networks: Single-fiber BiDi LPO transceivers reduce fiber usage while supporting extended reach up to 80 km. 5G Backhaul: Efficient, reliable links for mobile network aggregation.

Conclusion

Customized Single-

Fiber Bidirectional LPO integrates the efficiency and low-latency benefits of LPO with the fiber-saving advantages of BiDi transmission. It is particularly suited for modern high-performance networks, offering scalable, cost-effective, and interoperable solutions for data centers, metro networks, and long-haul optical links.