Single-Mode Fiber




 Fiber optic cables form the foundation of modern high-speed communication networks, enabling long-distance data transmission with minimal loss and strong immunity to electromagnetic interference. Below is a structured overview of the main cable types, their technical details, applicable standards, and real-world use cases—all aligned with current industry practices.

 

Single-Mode Fiber (SMF)

 

SMF is designed for long-distance, high-bandwidth communication, allowing only one mode of light to travel through a narrow core.

 

ParameterSpecification
Core Diameter8–10 µm
Cladding Diameter125 µm
Light SourceLaser diode (1310 nm or 1550 nm)
Maximum DistanceUp to 100 km+
BandwidthEffectively unlimited (Tbps range)
Jacket ColorYellow
Common StandardsOS1 (indoor), OS2 (outdoor/loose tube)

 

Applications:

 

Telecommunications backbone networks

Undersea cables

Long-haul ISP infrastructure

FTTH (Fiber to the Home) installations

Note: OS2 is the current standard for outdoor and long-distance use, offering lower attenuation than OS1.

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