Outdoor single-mode 1-core optical fiber

Single-mode single-core outdoor optical fiber is designed for long-distance, high-speed data transmission with minimal signal loss, typically featuring a 9µm core and robust outdoor protection. Core FeaturesSingle-mode fibers have a small core diameter of approximately 9 micrometers, allowing only a single light mode to propagate. This minimizes modal dispersion and enables long-distance transmission at high bandwidths, often supporting distances up to 40 kilometers or more without repeaters, depending on the OS1 or OS2 classification and operating wavelength (1310nm or 1550nm).

The cladding diameter is typically 125 micrometers, ensuring compatibility with standard connectors and splicing equipment.

Outdoor Suitability

Outdoor single-mode fibers are engineered to withstand harsh environmental conditions. They often include: UV-stabilized jackets and HDPE sheaths for protection against sunlight, moisture, and temperature extremes. Armored layers, such as ECCS steel tape, to resist crushing, rodent damage, and mechanical stress.

Water-blocking gels or yarns to prevent moisture ingress and maintain signal integrity. These features make them suitable for direct burial, aerial, or duct installations in outdoor environments.

Performance Specifications

Attenuation: OS1 cables typically have a maximum attenuation of 0. 4 dB/km at 1310nm and 0. 3 dB/km at 1550nm, while OS2 cables can achieve 0.

3 dB/km at both 1310nm and 1550nm. Bandwidth: OS1 fibers support around 200 MHz·km at 1310nm, and OS2 fibers can reach 500 MHz·km at 1310nm. Standards Compliance: Outdoor single-mode fibers generally comply with ITU-T G.

652. D, IEC 60794, ANSI/ICEA, and Telcordia GR-326 standards, ensuring compatibility with modern telecom and data networks. ApplicationsSingle-mode single-core outdoor fibers are ideal for: Telecom backbone networks and long-haul links.

FTT

H (Fiber to the Home) deployments and inter-building connections. High-speed data centers and DWDM systems. Harsh outdoor environments, including aerial, direct-burial, and duct installations.

Summary

In essence, single-mode single-core outdoor optical fiber combines a narrow 9µm core for long-distance, high-bandwidth transmission with ruggedized construction for outdoor durability. Choosing the appropriate OS1 or OS2 variant ensures optimal performance for distances ranging from 10 km to 40 km, while armored and water-blocking designs protect against environmental hazards, making it a reliable choice for modern telecommunications and data networks.