What is optical splitter and its important technical indicators?
Optical splitter is one of the important passive devices in optical fiber link. It is mainly to implement the optical signal splitting between the optical line terminal OLT and the optical network ter...
Optical splitter is one of the important passive devices in optical fiber link. It is mainly to implement the optical signal splitting between the optical line terminal OLT and the optical network terminal ONU in the passive optical network.
The optical splitter enables the signal on the optical fiber to be distributed between two or more optical fibers with different separation configurations, such as 1×2, 1×4, 1×N, or 2×4, M×N. The general architecture of FTTH is: OLT (Machine room office end) -- ODN (Passive optical network distribution system) -- ONU (User end). An optical splitter is used in ODN to realize that multiple end users share a PON interface. In the PON network, when buildings are scattered and irregular, such as villas, with long distances and low user density, the centralized light splitting method can make full use of resources and cover the surroundings.
In a passive optical network, only one optical splitter can be used, or multiple optical splitters can be used together to separate optical signals.
The performance indicators that affect the optical splitter are usually as follows:
In addition, uniformity, directivity, and PDL polarization loss are also parameters that affect the performance of the beam splitter. Optical fiber splitter is one of the most important passive devices in the optical fiber link. It is particularly suitable for connecting MDF and terminal equipment to distribute optical signals in passive optical networks (EPON, GPON, BPON, FTTX, FTTH, etc.). .
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