Principle and performance analysis of fiber optic cable connectors

Fiber optic cable connector principle and performance analysis of the current global total of more than 70 kinds of optical connectors, and new varieties are still emerging, but the mainstream varieties of the market is still by the early adoption of the diameter of φ2.5mm precision ceramic inserts and ceramic tubes (such as FC, SC, ST, etc.) composed of connectors. In addition, for φ1.25mm ceramic core (such as LC, MU, etc.) and ribbon fiber optic connector-based multi-core connector (such as MTP, etc.) demand is also gradually increasing. In general, the main optical performance indicators of fiber optic connector product quality are insertion loss (Insertloss) and return loss (Returnloss). In addition, the core end face geometry and other physical characteristics of the product quality of the reliability of the index is increasingly affected by the system manufacturers and high-end users of the attention. Fiber optic connectors work from the principle of connector insertion and return loss to do a simple introduction: fiber optic connectors can not be used alone, must be inter-mated with other similar connectors to form optical connections, the more popular one assembly docking method is: the use of epoxy resin thermosetting agent, the fiber bonded to the precision ceramic jack, and then make the two pins in the role of the external force, through the positioning of the adaptor set The two pins are then positioned by the adapter sleeve under external force to realize the docking between the optical fibers. Two optical fiber core in the docking to maintain a straight line, which is to ensure that the connector is a good connection quality of the key, which is mainly dependent on the physical properties of the fiber itself, the connector plug manufacturing precision as well as the connector assembly processing precision.

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