Fiber Optic Cleaning and Inspection of Connectors & Adapters

Cleanliness of fiber optic connections is critical to the performance of optical communication networks. Contamination on a connector end face, even if only at the microscopic level, can create severe problems. Traditional single mode fiber optic core diameters are approximately 9 microns. By comparison, a human hair is 50 microns or larger in diameter. Contamination […]

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Three Testing Tools Introduction in Fiber Optic Test Networks

This article I will introduce three tools in the standards for testing installed fiber. A visible light source or visual fault locator (VFL), an optical loss test set (OLTS), and the optical time domain reflectometer (OTDR). Visible Light Source Visible Light Source include incandescent lights and LED and laser light sources. Anything from a flashlight […]

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What is OTDR?

Recently many people asked me what is OTDR on my Facebook. Today this article will give you a detailed introduction of OTDR. What is OTDR? An optical time-domain reflectometer (OTDR) is an optoelectronic instrument used to characterize an optical fiber. An OTDR is the optical equivalent of an electronic domain reflectometer. It injects a series […]

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