Introduction to optical fiber adapters for optical communica

ST optical fiber coupler: Applied to ST optical fiber interface, usually used in optical fiber distribution frame, shell is round, fastening method is turnbuckle. For 10Base-F connections, the connector is usually of type ST. Commonly used in optical fiber distribution frames)

 

principle

 

The optical fiber coupler is a detachable (movable) connection device between the optical fiber and the optical fiber, which is the precision docking of 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 its involvement in the optical link to minimize the impact on the system. For a waveguide fiber coupler, it is generally a component with a Y-branch, and the optical signal input by one fiber can be equally divided by it. When the open Angle of the coupler branch increases, the light leaking to the cladding will increase, increasing the excess loss, so the open Angle is generally within 30°, so the length of the waveguide fiber coupler can not be too short.

 

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