Corning® SMF-28® ULL optical fiber has the lowest loss of any terrestrial grade single-mode fiber with attenuation available down to 0.15 dB/km at 1550 nm. SMF-28 ULL fiber is the most widely used ultra-low loss terrestrial fiber with millions of kilometers sold and deployed worldwide in the harshest environments and most demanding long-haul applications. There, 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/or lengthen the distance between regenerators.
Ultra-low-loss optical fiber allows carriers and cloud operators to extend optical reach at very high data rates and makes networks scalable for higher capacities as the demand for bandwidth continues to grow.
Combined with advanced optical networking equipment, our latest ultra-low-loss optical fiber technology offers simplicity and reliability for operators. SMF-28 ULL fiber enables service providers to transmit information across longer distances with less equipment, reducing installation and maintenance costs. SMF-28 ULL fiber is suitable for operation in O-, C-, and L-bands.
SMF-28 ULL fiber can be purchased natural or colored. Fibers with Corning® ColorPro™ identification technology, our coloring solution, enable cable manufacturers to reduce cost, minimize footprint, and leverage an enhanced product offering. Find more information about Corning ColorPro Identification Technology.
SMF-28 ULL fiber is now available in a smaller 200 micron nominal coating diameter.