Recently, there has been some buzz about Wide Band Multimode Fiber (WBMMF). The 2016 edition of document TIA-492AAAE, released on June 1, is available. This document/standard is the detailed specification for 50 μm graded index multimode optical fiber with laser optimized bandwidth characteristics specified for wavelength division multiplexing. So, from an installed cabling testing perspective, what is the difference between WBMMF and other multimode fiber and how should you test it in the field?
Wide Band Multimode Fiber – an Update
Cable Testing 101: There's No Gain with "Gainers"
Akin to water flowing from a small pipe into a large pipe, gainers are essentially perceived increases in optical power that occur at splice points due to variations in fiber characteristics, including core diameter, numerical apertures, mode field diameters and backscatter coefficients.
A Closer Look at 8-Fiber MPO Solutions
The use of plug-and-play 12-fiber MPO solutions for multimode fiber backbones in the data center has been popular for several years, starting with 10 Gigabit Ethernet where 12-fiber MPO assemblies connect MPO-to-LC cassettes or modules that transition the 12-fiber MPO connections to 6 duplex LC connections.