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Repeatability and interchangeability between connectors
May 08, 2018

An optical fiber connector is a device that is detachably (actively) connected between an optical fiber and an optical fiber. It precisely butt-joins two optical fiber ends so that the optical energy output from the transmitting optical fiber can be coupled to the receiving optical fiber to the utmost extent. It also minimizes the impact on the system due to its involvement in the optical link, which is a basic requirement for fiber optic connectors. To a certain extent, fiber optic connectors affect the reliability and performance of optical transmission systems.

Used for reconnectable connectors between optical fibers, also known as fiber optic connectors. The main performance parameters (and typical values) are: insertion loss (<0.5dB), plug repeatability, and interchangeability between connectors (changes of 500 times). For large-capacity high-speed transmission systems, it is also required that the reflection is small.

Optical fiber connectors can be divided into common single-mode and multi-mode connectors of silicon-based optical fibers according to different transmission media, and other optical fiber connectors such as plastics, etc. as the transmission medium; according to the structure of the connector can be divided into: FC , SC, ST, LC, D4, DIN, MU, MT and so on. Among them, ST connectors are usually used for cabling equipment ends, such as optical fiber distribution frames, fiber optic modules, etc.; SC and MT connectors are usually used for network equipment. There are FC, PC (including SPC or UPC) and APC according to the shape of the fiber end face; there are also single core and multi-core (such as MT-RJ) according to the number of fiber cores. Optical fiber connectors have a wide range of applications. In the actual application process, we generally distinguish between different fiber optic connector structures.


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