Fiber optic adapters are also called fiber optic couplers and fiber optic flanges, and they are called differently in different places. It mainly implements the docking of the same or different optical fiber active connectors in the optical fiber exposure, so that the optical path can be smoothed with little loss. It can precisely butt the two sections of the fiber, so that the light energy output from the transmitting fiber can be coupled to the receiving fiber to the maximum extent, and the impact on the system caused by its intervention in the optical link is minimized. It is suitable for telecommunication system, limited TV network, local area network, optical area network, FTTH fiber-to-the-home, video transmission, and testing instruments.
The function of the fiber optic adapter is to realize the active connection between fibers and fibers. Little things, if the quality is not very good, nothing underestimates the impact of the whole network system. Basically the requirements of a good fiber optic flange: small insertion loss, return loss, repeated mating, environmental stability and good mechanical properties.
Generally speaking, the most important thing is not the large insertion loss, the insertion loss of the adapter, the attenuation of optical power caused by the system accessing the adapter. The main reason is that the optical fibers between the two are not concentrically connected. If the two fibers are arranged in a straight line, the deviation is zero, the minimum insertion loss. In practical engineering applications, this is an impossible task, because the concentricity of the inner hole of the fiber cladding and pin hole and the outer diameter of the pin is wrong because of different cores, as well as different cores of the core and cladding fibers. Factors exist that will cause lateral deviation between fibers.
Classification of fiber optic adapters
Common Types of Fiber Adapters
There are many types of fiber optic adapters, mainly including LC fiber optic adapters, FC fiber optic adapters, SC fiber optic adapters and bare fiber optic adapters.
LC fiber optic adapter: This fiber optic adapter can be used for the connection of LC fiber optic patch cords or LC connectors, and it has various types such as LC-LC, LC-FC, LC-SC, LC-ST and LC-MU.
FC fiber optic adapter: This fiber optic adapter can be used to connect FC fiber optic patch cords or FC connectors, and there are different types such as square, single mode and multimode, but these different types of FC fiber optic adapters all have metal shells and ceramic sleeves.
SC fiber optic adapters: Can be used to connect SC fiber optic patch cords or SC connectors, and there are many types, such as standard female-female SC adapters and hybrid SC adapters. Most SC fiber optic adapters have ceramic ferrules, while the fiber type of SC fiber optic adapters with bronze ferrules is usually multimode.
Special Bare Fiber Adapters: Bare Fiber Adapters are used as a special fiber optic adapter to connect bare fiber optic cables to optical devices, this type of adapter allows the cable to be installed into the connection slot, either plugged into a mating or plugged into Electronic equipment.
