Teach you to distinguish fiber optic connector end grinding quality

In our current daily life, the use of optical fiber products is very much, because optical fiber has a high transmission capacity, so in many consumer electronic devices, optical fiber will be used to enhance the signal of these products. In this way, the quality of the optical fiber connector has attracted people's attention, and the evaluation of the quality of the optical fiber connector is inseparable from the inspection of the grinding quality of the optical fiber product, the following will tell you how to judge the grinding quality of the optical fiber connector.
After grinding the end face of the optical fiber connector, the transmission performance of the product can be improved, so that the transmission efficiency can be further improved, and the grinding quality of the optical fiber connector section needs to be analyzed from the five aspects of the quality of the echo reflection, the docking loss value, whether the apex of the end face is offset, the radius of curvature is up to standard, and the amount of optical fiber sag and bulge is appropriate, as follows:
First, the quality of the echo reflection
When the signal transmission is abnormal, it is easy to make the data bit error of the data rate, because the quality of the echo reflection determines the system transmission problems such as the speed and clarity of the optical fiber system. Like common connectors are generally represented by PC, SPC, UPC and APC, and the end face type is generally described by these English abbreviations, which are related to the design of echo reflection.
2. Docking loss value
View the optical fiber connector end grinding quality, can not be separated from the inspection of the product docking loss value, the general connector docking loss value specified value is <0.5db, but the general expectation has become <0.3db, because the optical fiber docking is inaccurate will cause the connection is not in place, and the connector end grinding quality will affect the connector docking loss value.
3. Whether the end vertex is offset
The end apex of the connector refers to the measured distance between the core and the highest point of the connector after grinding, if the offset will lead to the docking loss value of the connector and the improvement of the echo reflection quality.
4. Whether the radius of curvature is up to standard
The radius of curvature is an index used to measure the curvature of the end face of the connector. The general radius of curvature of the industry specification is 10-25mm, the use of the appropriate diameter and optical fiber sag, will make the fiber to the connector crimping is optimized, thus achieving the maximum performance of the connector. Deso fiber optic connector product curvature radius can meet the standards, strict implementation of industry production standards, users can rest assured to purchase.
Fifth, whether the amount of optical fiber sag and protrusion is appropriate
The amount of sag is measured by the distance that the optical fiber is trapped inside the connector pin, the general value of the optical fiber sag is usually greater than 50nm, and the protruding amount is the external distance that the optical fiber remains in the pin. The two states are closely related to the grinding process and can be measured by an interferometer. Optical fiber sag and bulge affect echo reflection and insertion loss. Because the pin material around the fiber will compress when the connector is aligned, it is important to select the right amount of dented/protruded fiber for close contact. In addition, there are air gaps between fibers that are not tightly connected, which can cause unacceptable echo reflection and docking loss values.