The optical fiber adapter is an optical fiber movable connector pair connecting component. The optical fiber adapter can precisely butt the two end faces of the optical fiber, so that the light energy output of the transmitting optical fiber can be coupled to the receiving optical fiber to the maximum extent, and the docking of the same or different optical fiber active connectors can be implemented, so that the optical path is smooth with little loss.
With the wide application of optical fiber adapters in optical fiber connections, there are a variety of optical fiber adapters with different interfaces to choose from to adapt to different environmental installation needs. Common types of adapters are: LC adapter, FC adapter, SC adapter, ST adapter, E2000 adapter, MTP/MPO adapter and so on.
In the face of so many kinds of adapters, how to choose the right and good quality adapters is particularly important. In general, when considering fiber optic adapters, the following points should be considered.
Several important properties that affect fiber optic adapters:
1. Flame retardant level of the adapter
Flammability UL94 is the most widely used flammability standard for plastic materials. It is used to evaluate the ability of a material to die after being ignited. According to the burning speed, burning time, drip resistance and whether the drop is burning can have a variety of evaluation methods. HB,V0, V1, V2 are different flame retardant grades, their grades are different, the fire resistance test methods are different, the test criteria are different, the flame retardant grade from HB, V-2, V-1 to V-0 step by step increase. There are not many fiber optic adapters on the market that can reach the UL94-V0 level, and the LC dual/quadruple adapter of Yiyuantong HYC meets the UL94-V0 standard.
2. Insertion damage
The insertion loss is generally required to be less than 0.2dB, if the insertion loss is too high, it will affect the transmission of light.
3. Repetition
The adapter needs to be inserted and removed frequently during use, so the durability of the adapter is required to be high, and the normal standard needs to be inserted and removed more than 500 times without affecting the performance without changing the insertion loss.
4. Operating temperature
-40℃~75℃ is a normal operating range of the adapter, and the operating temperature of this LC adapter from Yiyuantong HYC is -40℃~85℃.
5. Align the fiber adapter with the material of the casing
The alignment sleeve is the most important part of the optical fiber adapter, generally made of metal or ceramic material, the use of ceramic fiber adapter effect will be relatively good, because the ceramic crystal structure is hard, not easy to deform, it can achieve rapid alignment, high-precision optical fiber end butt.
When choosing a fiber optic adapter, you can select a fiber optic adapter with relatively high quality and stability through the above important performance, and of course, you need to consider some other factors that affect the quality, such as tensile strength and compliance with standards. Optical fiber adapters are widely used in communication rooms, FTTH optical fiber to the home, local area networks, optical fiber communication systems, optical fiber connection transmission equipment, national defense combat readiness, etc. Although the optical fiber adapter product is small, its quality directly affects the entire optical fiber link, and the quality of the product should be rigorous and comprehensive.
