White Paper Overview
With the wide range of fiber optic cables available for deployment (hybrid, multifiber, etc.), the test setups needed to evaluate them have become quite complex. The complexity required to test these cables often introduces additional insertion loss, resulting in uncertainty and erroneous return loss measurements. To ensure measurement accuracy, it is advisable to find a correction factor for each channel of each reference cable to zero out this variance. An established method to do this is to use an external reflectance standard. Awareness of this phenomenon will help manufacturing engineers and technicians accommodate and correct for potential sources of error.