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SMF-28® ULL fiber
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Specialty fibers

Corning® SMF-28® ULL optical fiber

SMF-28 ULL endcap

Corning SMF-28® ULL fiber has the lowest loss of any terrestrial grade single-mode fiber with a maximum attenuation of 0.17 dB/km at 1550 nm.  SMF-28 ULL fiber has been deployed around the world in some of the most challenging network applications, where ultra-low attenuation can be leveraged to extend network span lengths, skip amplification sites, upgrade to faster bit rates, add network components for improved flexibility, and lengthen the distance between regenerators. As a result, long-haul and regional networks are scalable for the higher capacities required to meet the ever-increasing global demand for bandwidth without the need to sacrifice backwards compatibility with an existing ITU-T Recommendation G.652 installed base of fibers.

SMF-28 ULL optical fiber product information sheet
English | Chinese | Russian 

How to Order
Visit our Customer Support Web page to learn how to place an order for SMF-28 ULL fiber.  More 

In the News
T8 and Corning Demonstrated a 100G Unrepeated Transmission over 500 km Using Corning’s Ultra-Low-Loss Optical Fiber (with ROPA) More 
Corning Long-Haul Optical Fibers Enable Advanced 100G Solution Over-Single Span 250-Kilometer Network More 
Corning Long-Haul Optical Fibers Enable Extended Reach in 40G and 100G Networks  More 
AT&T, NEC, and Corning Researchers Complete Another Record- Breaking Fiber Capacity Test.  More 
Corning's Ultra-Low-Loss Optical Fiber Chosen for du's High-Capacity, Pan-Emirates Network.  More 
Corning and Infinera to Demonstrate Long-Haul Network Design Simplification at OFC/NFOEC 2008.  More
Corning and Nortel Combine Optical Expertise to Lower the Cost of Long-Haul Networks.  More
Corning Introduces New Ultra-Low-Loss, Single-Mode Optical Fiber for Long-Haul and Regional Networks.  More 

Lightwave Video from OFC 2011: Ciena’s 100G Solution Over 250 Kilometer Single Span of Corning® SMF-28® ULL Fiber View 

Technical Resources
557-km Unrepeatered 100G Transmission with Commercial Raman DWDM System, Enhanced ROPA, and Cabled Large Aeff Ultra-Low Loss Fiber in OSP Environment 
> The Super Connected World: Optical Fiber Advances and Next Gen Backbone, Mobile Backhaul, and Access Networks Introduction 
> Low Signal Latency in Optical Fiber Networks
An Introduction to the Fundamentals of PMD in Fibers  
> Explanation of Reflection Features in Optical Fiber as Sometimes Observed in OTDR Measurement Traces 
> Nortel Long-Haul Transmission Gear and Corning® Ultra-Low-Loss Fiber Enable Longer Span and Longer Reach Network Designs 

View the full list of long-haul white papers.
View  the full list of longhaul article and news reprints.