Fiber optic attenuator

摘要

An optical fiber attenuator includes an optical fiber section having an end at an angle to the longitudinal axis of the section. The end has on it a first layer of substantially transparent anti-reflective material, a second layer of light attenuating material on the first layer and a third layer of substantially transparent anti-reflective material over the second layer. A fourth layer of substantially transparent, relatively hard scratch-resistant material may be added on the third layer.