At present, with the continuous development of the domestic communication industry, optical fiber communication has entered the stage of practical use, and the scope of application is becoming wider and wider. At the same time, more and higher requirements are also put forward for optical fiber connectors.
Its main development direction is miniaturization of appearance and low cost, but the requirements for performance are getting higher and higher. Today, I will explain in detail the pre-embedded optical fiber and non-pre-embedded (straight-through), optical fiber jumper of optical fiber quick connector. , pigtail, the difference between.
The difference between the embedded fiber optic quick connector and the straight-through type:
Optical fiber quick-connect connector technology is divided into two categories: embedded optical fiber and non-embedded (straight-through) quick connector optical fiber. The main difference is the connection point and connection method:
(1) Connection point setting:
The connection point of the embedded optical fiber is set inside the connector, and the embedded optical fiber has a preset matching liquid.
The non-pre-embedded (straight-through) fiber splicing point is on the surface of the connector, without pre-matching liquid, and is directly connected to the target fiber through the adapter.
(2) Connection method:
The pre-embedded optical fiber quick connect connector is to insert and fix the optical fiber in the ferrule, and after the surface of the ferrule is polished, the alignment is realized in the coupling tube. The outer components of the pins are made of metal or non-metal materials. The butt end of the ferrule must be ground, and the other end usually uses a bend limiting member to support the fiber or fiber optic cable to relieve stress.
The coupling tube is generally made of two-half composite, fastened cylindrical members made of ceramic, or bronze, etc. materials. Most of them are equipped with metal or plastic flanges to facilitate the installation and fixation of connectors. In order to align the fibers as precisely as possible, the processing precision of the pins and coupling tubes is very high.
There is no pre-embedded optical fiber and matching inside the straight-through optical fiber quick connector device. After the optical fiber is installed and clamped, the end face of the optical fiber can be inspected with a magnifying glass, which can avoid the occurrence of excessive optical fiber connection loss. Axial belt positioning mechanism, during the clamping process, the optical fiber will not move forward axially.
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