Views: 165 Author: Site Editor Publish Time: 2020-05-12 Origin: Site
Optical fiber patch cord precisely connects the two ends of optical fiber, so that the optical energy output by the transmitting optical fiber can be coupled to the receiving optical fiber to the maximum extent, and the impact on the system caused by its intervention in the optical link is minimized, which is the basic requirement of optical fiber patch cord. To a certain extent, the optical fiber patch cord also affects the reliability and performance of the optical transmission system. Due to the variety of optical fiber patch cord, it is easy to make mistakes in the selection process. In order to facilitate your selection, the following is to distinguish optical fiber patch cords from the interface and color.
According to the transmission mode of light in the optical fiber patch cord, the optical fiber patch cord can be divided into single-mode optical fiber patch cord and multimode optical fiber patch cord.
The single-mode optical fiber patch cord is indicated by yellow, and the connector and protective sleeve are blue. It has a long transmission distance.
The multimode optical fiber patch cord is indicated by orange, some are shown in gray, and the connector and protection cover are in beige or black. It has a short transmission distance.
In order to make the end faces of two optical fibers better contact, the ferrule head face of the optical fiber patch cord is usually ground into different structures.
PC refers to the micro spherical grinding and polishing. The surface of insert core is ground into a slight spherical surface, and the fiber core is located at the highest point of bending, which can effectively reduce the air gap between the fiber optical components and make the two fiber optical head faces reach physical contact.
The head face of UPC optical fiber patch cord is a slight arc instead of completely flat, so as to achieve more accurate docking. UPC is based on PC to optimize the polishing and surface finish of the end face, and the head face looks more domed.
APC refers to the physical contact of the inclined plane. The head face of the optical fiber patch cord is usually polished into an 8° inclined plane. The 8° angled bevel makes the head face of the fiber tighter, and reflects the light to the cladding through its bevel angle instead of directly returning to the light source, providing better connection performance.
Optical fiber patch cords are an issue that users must consider when purchasing optical fiber patch cords. Understanding the meaning of various optical fiber patch cords can help users find the products they want faster. Optical fiber patch cords are mainly used for the connection between the optical distribution frame and the switch, the connection between the switch and the desktop computer, and the connection between the optical distribution frame and the desktop computer. It is mainly applied to the network cabinet, base station cabinet and SMC cabinet.