Scattering is the primary loss mechanism offiber and the light scattered back to the OTDR provides the mechanism for OTDRtesting. The backscatter coefficient is a result of two major fiber characteristics, corediameter (or more correctly, mode fill in the core) and the material itself.
1 Cancers-peripheral neuropathy can occur in people with some cancer E.G: lymphoma and multiple myeloma. 2  Alcohol excess-high alcohol levels in the body cause nerve damage. 3  Chronic kidney disease-if the kidneys are not functioning normally, an imbalance of salts and chemicals can cause peripheral neuropathy.
The commonest cause of peripheral neuropathy is diabetes. 2,9. High blood sugar levels causes damage to the walls of the tiny blood vessels that supply oxygen and nutrients to the nerves in the ends of the hands and feet, and the essential organs in the body (eyes, kidneys, heart). Infections-damage can be caused to peripheral nerves by some infections including shingles, HIV infection and Lyme disease. 2  Guillain-Barre barrÃ© syndrome is the name given to a specific type of peripheral neuropathy triggered by.  infection