The fiber optic adapter is an optical movable connector pair connecting component. The fiber optic adapter can precisely butt-joint two end faces of the optical fiber, so that the optical energy output of the transmitting optical fiber can be coupled to the receiving optical fiber to the maximum extent, and the same or different optical fiber connectors can be butt-jointed, so that the optical path is smooth with little loss. So how do we choose fiber optic adapters?
Flammability UL94 grade is the most widely used flammability performance standard for plastic materials. It is used to evaluate the ability of the material to extinguish after being ignited. There are a variety of judging methods such as burning speed, burning time, anti-drip ability and whether the drip beads burn.
HB, V0, V1, V2 are different flame-retardant grades. For different grades, different testing methods for flame resistance, and different criteria for testing and determination are adopted, and the flame-retardant grades increase from HB, V-2, V-1 to V-0 step by step.
Generally, the insertion loss should be less than 0.2dB. If the insertion loss is too high, the optical transmission will be affected.
The fiber optic adapter needs to be inserted and removed frequently in the service process. Therefore, the durability of the fiber optic adapter requires high requirements. In normal standards, the fiber optic adapter can be inserted and removed for more than 500 times without affecting the performance without changing the insertion loss.
The normal operating temperature of an fiber optic adapter ranges from -40 ° C to 75 ° C, while that of an LC adapter ranges from -40 ° C to 85 ° C.
The alignment sleeve is the most important component of the fiber optic adapter. It is usually made of metal or ceramic. Because the crystal structure of ceramics is hard and not easy to deform, fast alignment and high precision butt jointing of fiber end can be realized.
The above is all the content about how to select the fiber optic adapter. When choosing the fiber optic adapter, the above important properties can be used to select the relatively high quality and stable fiber optic adapter. Of course, there are other factors that affect the quality, such as tensile strength, compliance standards, etc.