Corning licenses OFS fiber patent - Patents - Brief Article

Fiber Optics Weekly Update, Feb 6, 2004

Corning and OFS announced that Corning has obtained a license from OFS to offer optical fiber for use in WDM systems covered by OFS' U.S. Patent No. 6,205,268 and its foreign counterparts. This patent relates to the use of low-water-peak fibers, such as Corning SMF-28e fiber and OFS AllWave fiber, in these particular systems. No other fiber manufacturer, foreign or domestic, has a license under this patent at this time.

The full-spectrum capability of low-water-peak fibers allows system designers using either Corning or OFS fiber to engineer and deploy systems that leverage the E-band (1360-1460 nanometer) transmission window. Access to the E-band window increases usable capacity by 50 percent and allows for application of DWDM or CWDM across the spectrum.

Both the Corning and OFS fibers comply to ITU-T G.652.C/D standards, the industry's most stringent and comprehensive table of specifications for standard single-mode fiber. Carriers today recognize the increased network capability and opportunity for return on investment that comes with specifying to this high standard.