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FC/APC Connectors versus Flat Angled Finish FC Connectors

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FC/APC Connectors versus Flat Angled Finish FC Connectors

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Connectors with angle polished (APC) finishes are a very popular choice in the market today. Connectors with APC finishes are made by polishing the fiber at either an 8 or 9 degree angle, with a radius of curvature between 5 and 12 mm. By angle polishing the end of the fiber, one ensures that reflections at the fiber-air interface are not captured by the fiber core. This greatly reduces backreflection levels in fiber optic systems, and in turn reduces feedback problems and improves stability. By having the angled surface polished to a radius, one also ensure that two similarly polished connectors will mate at the fiber core.

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