Fiber Optic Coupler and its categories:
We use the fiber optic coupler to split the input signals into two or more outputs, in this case, they are called splitters. On the other hand, there are some types of couplers that can be used to combine two or more inputs into a single output, in which case they are called combiners. The custom spherical optics manufacturer available in the market manufactures the flat optics which have a very high efficiency, to know more Visit Website.
Types of fiber optic couplers:
- T coupler: T couplers can also be used to connect the multiple terminals on a network. The split ratio should be 10/90 percent or 20/80 percent between the two outputs to keep enough power remaining for the next terminal in the link.
- Y coupler: Its other name is tap coupler. It simply divides the signal into two parts. The power distribution ratio should be around such as 10/90 percent, 20/80 percent, 30/70 percent, 40/60 percent, or 50/50 percent between the two outputs can be precisely controlled.
- Tree couplers: The other name of tree couplers is 1XN couplers because it takes one or two inputs and then splits them into multiple outputs. Tree couplers distribute the input power more evenly between the output fibers. There are some tree couplers that combine multiple one or two outputs, so they are actually combined.
1×4, 1×8, 1×16, 1×32 and 2×4, 2×8, 2×16, 2×32 port ratios are the most common configurations. In order to split and mix optical signals in CATV, LAN, and all other types of optical communication systems, these tree couplers are used.
- WDM couplers: WDM couplers basically separate the optical signals based on their wavelengths. They look like 1×2T couplers but they not only split power indiscriminately but also split different wavelengths into two outputs, such as 1310/1550 nm and 980/1550 nm couplers. WDM couplers are also used to separate the wavelengths that are transmitted through the same fiber for different purposes, including separating the light pumping an optical amplifier from the amplified signal. They do not allow the wavelengths to enter the wrong output port.
- Biconical Taper coupler: If the covering is partially removed of two or more fibers and the fibers are placed in close proximity by more than some length, some light will be transmitted from one filament to another. A group of fibers exposed to the cladding are sued to create this type of coupler on which tension and heating are applied at the junction.