What is the structure of the fiber optic fast connector? What is the performance of the fiber optic fast connector? The following small series will tell you about the structure and performance of the fiber fast linker, I hope to help everyone.
Fiber optic fast connector structure
The main purpose of the fiber optic fast connector is to achieve fiber optic connection. Fiber optic fast connectors, which are widely used in fiber-optic communication systems, are now available in a wide variety of configurations. However, the basic structure of various types of fiber optic fast connectors is consistent, that is, most fiber optic fast connectors generally use high-precision components (composed of two pins and one coupling tube) Achieve the alignment of the fiber.
In this method, the fiber is inserted into and fixed in the pin, and the surface of the pin is polished to achieve alignment in the coupling tube. The outer components of the pins are made of metal or non-metal materials. The butt end of the pin must be ground and the other end typically uses a bend limiting member to support the fiber or fiber optic cable to relieve stress. The coupling tube is generally made of two semi-synthetic, fastened cylindrical members made of ceramic, or bronze, and is equipped with a metal or plastic flange to facilitate the mounting and fixing of the connector. In order to align the fiber as precisely as possible, the processing precision of the pin and the coupling tube is very high.
Fiber Fast Connector Performance
The performance of the fiber optic fast connector is first of all optical performance, in addition to the interchangeability, repeatability, tensile strength, temperature and number of insertions and removals of the fiber optic fast connector.
1. Optical performance: For the optical performance requirements of the fiber optic fast connector, the two most basic parameters are insertion loss and return loss.
The insertion loss, that is, the connection loss, refers to the loss of the effective optical power of the link due to the introduction of the connector. The smaller the insertion loss, the better. Generally, the requirement should be no more than 0.5dB.
Return loss refers to the ability of the connector to suppress the reflection of the link optical power, and its typical value should be no less than 25dB. In the practical application of the connector, the surface of the pin has been specially polished to make the return loss larger, generally not less than 45dB.
2. tensile strength
For a good fiber optic fast connector, the tensile strength is generally required to be no less than 90N.
3. interchangeability, repeatability
The fiber optic fast connector is a universal passive device. For the same type of fiber optic fast connector, it can be used in any combination and can be used repeatedly. Therefore, the additional loss introduced is generally less than 0.2dB. .
4. the number of plugs
Fiber optic fast connectors currently in use can generally be inserted and removed more than 1,000 times
Generally, the fiber optic fast connector must be able to operate normally at temperatures between -40°C and +70°C.
The above is about the structure and performance of the fiber optic fast connector. I hope everyone can understand the structure and performance of the fiber optic fast linker.
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