Bend Insensitive Multimode Fiber in My Data Center?

I’d like to bend your ear a bit today on the topic of bend insensitive multimode optical fiber (BIMMF). When bend insensitive multimode fiber made its debut a few years ago, we urged end-users to use caution if they were going to adopt it in their data centers.

Since the existing fiber and measurement procedures were not designed to accommodate the intentional improvements in BIMMF’s performance nor the unintentional side-effects caused by the revised fiber design, the providers of BIMMF could have differences in how they define what BIMMF is and how they measure the various parameters of the fiber. Our concerns centered on whether differences in how the various providers of BIMMF measured its numerical aperture, core diameter, and Differential Mode Delay (DMD) would cause compatibility issues if BIMMF were used with non-BIMMF.

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