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SFP1550 optical module costs over 40 kilometers

Fibre interconnection and data room reference Published 28 Mar 2025

Use this reference to prepare product questions for FD SOLUCIONES. Check interfaces, capacity, protection and installation requirements against the current product documentation.

1550nm SFP modules for 40 km single-mode fiber typically cost more than standard short-range SFPs due to their long-distance performance and reliability requirements.

Overview1550nm SF

P transceivers are designed for long-distance, low-loss transmission, making them ideal for links of 40 km or more over single-mode fiber (SMF) networks. Compared to 850nm or 1310nm SFPs, 1550nm modules offer lower attenuation (~0. 2 dB/km), which allows signals to travel farther with fewer repeaters, ensuring stable and high-quality transmission.

These modules are commonly used in telecom backbones, metropolitan area networks (MANs), ISP aggregation links, and data center interconnects.

Types and Specifications

Data Rates: Modules are available for 1G, 4G, and 10G applications, supporting Gigabit Ethernet, Fibre Channel, and SONET/SDH protocols. Optical Link Budget: A typical 40 km SFP module has a 15 dB link budget, sufficient for metro and long-haul links. Connectors: Most modules use LC duplex connectors and comply with SFP MSA standards, often including digital diagnostic monitoring (DDM/DOM) for real-time performance monitoring.

Laser Type: Modules employ DFB lasers with PIN photodiode receivers for reliable long-distance transmission.

Cost Considerations

The price of a 1550nm SFP module for 40 km depends on several factors: Data Rate: Higher-speed modules (10G SFP+) are more expensive than 1G SFPs. Brand and Warranty: Modules from established manufacturers with warranties and quality certifications (ISO 9001: 2015) tend to cost more. Features: Modules with DDM/DOM, extended temperature ranges, or enhanced link budgets are priced higher.

Market Pricing: While exact prices vary, factory or wholesale prices for 1G 1550nm 40 km SFPs typically range from $50 to $150, whereas 10G SFP+ modules for the same distance can range from $200 to $500 or more, depending on vendor and specifications.

Summary1550nm SF

P modules for 40 km are optimized for long-haul, high-stability fiber links. They are more expensive than short-range SFPs due to their lower attenuation, higher link budget, and reliability features. When planning purchases, consider data rate, module type, manufacturer, and additional features to balance performance and cost effectively.

SFP1550 optical module costs over 40 kilometers - FD SOLUCIONES OPTICAL SYSTEMS [PDF]

SFP1550 optical module costs over 40 kilometers
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Technical note

This reference is intended for preliminary fiber and communications infrastructure research. Optical interface, fiber type, port or core capacity, electrical input and output, enclosure protection, cooling, installation limits and applicable standards must be verified for the specific project.

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