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LC Optical Module Single Mode

Fiber optic patch cord knowledge brief Published 04 May 2022

Prepared for preliminary research by the JEWELBLU OPTICAL knowledge desk. Confirm connector types, fiber grades, polish, loss budgets and installation requirements against current standards and product documentation.

Single-mode LC interface optical modules are compact, high-performance transceivers that use LC connectors to transmit optical signals over single-mode fiber for long-distance, high-bandwidth networking.Overview

Single-mode LC optical modules are designed for single-mode fiber (SMF), which has a narrow core (~9 µm) allowing light to propagate in a single mode. This minimizes modal dispersion and enables long-distance transmission with low signal loss, making them ideal for data centers, enterprise networks, and telecom applications . The LC connector features a 1.25 mm ferrule and a push-and-click mechanism, providing high port density, easy installation, and stable connections .

Connector and Compatibility
  • LC Duplex Connector: Standard for most SFP and SFP+ modules, ensuring compatibility with single-mode patch cords .
  • SFP/SFP+ Form Factor: Hot-pluggable modules that fit into standard SFP slots on switches, routers, or media converters. The connector type determines the physical interface, while the SFP type defines data transmission characteristics .
  • High-Density Deployment: LC connectors allow compact, high-density port arrangements, which is critical in modern network racks and data centers .
Performance Specifications
  • Data Rates: Modules support speeds from 1.25 Gbps (SFP) up to 10 Gbps (SFP+) .
  • Wavelength: Commonly 1310 nm for long-reach applications, balancing low attenuation and minimal chromatic dispersion .
  • Transmission Distance: Depending on the module, distances range from 10 km to 70 km over single-mode fiber .
  • Standards Compliance: Modules conform to IEEE standards such as 10GBASE-LR for SFP+ and 1000BASE-LX/LH for SFP, ensuring interoperability across vendors .
  • Digital Optical Monitoring (DOM/DDM): Many modules provide real-time monitoring of optical power, temperature, and voltage for proactive network management .
Applications
  • Data Centers: High-speed interconnects between switches and servers.
  • Enterprise Networks: Long-distance links across campuses or buildings.
  • Telecommunications: Reliable backbone connections with minimal signal degradation.
  • Industrial and Educational Networks: Campus-wide fiber deployments requiring gigabit or 10G connectivity .
Key Advantages
  • Low Insertion Loss: Optimized LC design reduces signal loss over long distances .
  • High Reliability: Stable connections under demanding conditions.
  • Ease of Use: Snap-in LC connectors simplify installation and maintenance .
  • Scalability: Compatible with existing SFP/SFP+ infrastructure, allowing network upgrades without replacing chassis . In summary, single-mode LC interface optical modules provide a compact, reliable, and high-performance solution for long-distance fiber optic networking, supporting both gigabit and 10G Ethernet applications while maintaining compatibility with standard LC patch cords and SFP/SFP+ slots .

LC Optical Module Single Mode - JEWELBLU OPTICAL SYSTEMS [PDF]

LC Optical Module Single Mode

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Technical note

This reference is intended for preliminary fiber optic patch cord research. Compatibility, link budgets, connector types, polish, installation methods, test limits and applicable standards must be verified for the specific project.

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