Comprehensive Guide to 10G BiDi SFP+ Optical Transceivers Modules（2025）
As data‑intensive applications proliferate, network designers demand higher speeds without ballooning infrastructure costs. Our 10G BiDi SFP+ Optical Transceivers Modules deliver full 10 Gb/s over a single strand of single‑mode fiber, halving fiber count and simplifying cable management. In this guide, we dive into Fibrecross’s portfolio of 10G SFP+ Optical Transceivers, explain how BiDi optics work, compare module options, and share best practices for deployment.
What Is a 10G BiDi SFP+ Optical Transceivers Module?
A BiDi (bidirectional) SFP+ transceiver uses wavelength‑division multiplexing (WDM) to send and receive 10 GbE signals over one fiber. Unlike traditional Optical Transceivers that require two fibers (one for TX, one for RX), BiDi optics pack both directions into a single strand by assigning different wavelengths to transmit and receive channels.
How BiDi Technology Works
Wavelength Pairing: One side transmits at, say, 1270 nm and receives at 1330 nm; the opposite end swaps those wavelengths.
WDM Filter: An integrated WDM filter inside the SFP+ separates TX/RX paths.
DOM Support: Digital Diagnostics Monitoring provides live feedback on temperature, optical power, and more.
Technical Specifications at a Glance
Data Rate: 10.3125 Gb/s (IEEE 802.3ae)
Fiber Type: Single‑mode (G.652)
Connector: Duplex LC/UPC (simplex with WDM)
Power Budget: Class 1 laser safety, typical TX power +0.5 to +5 dBm
Operating Temp: Commercial (0 °C–70 °C) or Industrial (–40 °C–85 °C)
DOM: Available on all Fibrecross BiDi models
Key Advantages
Single‑Fiber Savings: 50% reduction in fiber count and transceiver ports.
Cost‑Efficient Upgrade: Reuse existing single‑strand fiber for 10 GbE rollout.
Space and Power: Smaller cable trays, fewer splice panels.
Rapid Deployment: Plug‑and‑play WDM optics, no special patching required.
Comparison with Other 10G Optical Transceiver Modules
| Feature | Fibrecross 10G BiDi SFP+ | 10G SR‑10 SFP+ | 10G LR‑10 SFP+ |
|---|---|---|---|
| Module Type | 10G BiDi SFP+ Optical Transceivers Modules | 10G SFP+ Optical Transceivers | 10G Optical Transceivers |
| Fiber Type | Single‑mode | Multimode (OM3/OM4) | Single‑mode |
| Wavelength(s) | 1270 nm TX / 1330 nm RX | 850 nm | 1310 nm |
| Max Reach | Up to 60 km | Up to 300 m (OM3) | Up to 10 km |
| Fiber Count | 1 strand | 2 strands | 2 strands |
| Transceiver Ports Needed | 1 per link | 2 per link | 2 per link |
| Typical Use Case | Campus, metro, data‑center spans | Short‑reach ToR, rack interconnect | Campus backbone, metro links |
| Infrastructure Impact | Halves fiber & port requirements | Requires multimode cable upgrades | Requires dual‑strand single‑mode |
| Total Cost of Ownership | Lowest (reuse existing fiber) | Lower module cost but higher cabling | Moderate (module + fiber) |
Common Applications
Data Center Spine/Leaf: High‑density ToR uplinks.
Campus Distribution: Simplified fiber runs between buildings.
FTTx & Access Networks: Cost‑effective last‑mile 10 GbE services.
Carrier Metro Rings: Bandwidth‑efficient links over existing fiber.
Installation & Compatibility
Check Wavelength Pair: Ensure one end is an “U” model, opposite end a “D” model.
Switch Compatibility: Fibrecross BiDi modules are tested with Cisco, Juniper, Arista, Huawei, Dell, HPE, and more.
DOM Integration: Use network management tools (e.g., SNMP) to monitor status.
Polarity Matters: WDM filter fixes polarity internally—just match TX-to-RX end‑to‑end.
Conclusion
Fibrecross’s 10G BiDi SFP+ Optical Transceivers Modules unlock the full potential of your existing fiber plant, cutting capex and cabling complexity in half. Whether you’re building out a data‑center spine, extending campus links, or deploying next‑generation FTTx, BiDi optics offer unmatched efficiency and flexibility. Contact Fibrecross to discuss your 10 GbE migration path and get samples for testing today.
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