BNC connectors commonly used with the A/V industry, fiber connector with fiber optic technology continues to mature gradually. Copper connectors on the AV system signal loss generally will not be great, the optical connection is different, its transmission system interface will play a very large effect. Let’s take a look at some of the issues arising in fiber physical connection, fiber optic transmission equipment itself may direct connection, but in some cases, most or almost all of the fiber optic transmission connectivity options are artificially personally. The amount of signal loss by the quality and type of the used optical fiber cable, each connecting end will produce a certain signal is lost. According to the user to select different types of fiber connector, connecting end signal loss add up to the total amount may exceed the amount of fiber optic cable signal loss.
In the fiber optic system design, the system is capable of normal operation, we achieved very good results, we need to consider some unexpected problems may appear in the system design, and want the system to achieve the effect of normal operation. System design, we have to take into account the worst case may appear and make appropriate plans, looking forward to better operational results. Fiber optic connector design certainly want this idea to heart. In system design, security, stability and system connection requirements the end of the fiber is smooth, Founder. The connection between the client and the client must be precise, micron accuracy or millionths of a meter. Commonly used in the multimode fiber from 50-62.5 microns in diameter, while the diameter of the single-mode fiber is only 8-9 microns. This diameter size of a human hair (17-180 microns) in diameter compared to see any trace of error can bring catastrophic losses.
The fiber optic connection very stringent precision requirements, the connector must be very clean. Fiber optic connectors and accessories are usually mounted on a set of house, a finger print or external dust may seriously affect the performance of the connector, and even lead to transmission failure. Therefore, the connector is not connected, it should be stored in clean protective sleeve in.
In connection, we should also fiber optic connector wedge tight “ferrule” all optical fiber connector design to ensure accurate when the connector with. The optical fiber terminal is inside the ferrule, become a permanent element by adhesive or crimping tight hoop. A built-in optical fiber is inserted, put the ferrule end ground smooth, smooth interface connector fiber optic connection. Ferrules are usually made from a relatively hard material such as ceramic, of course, can also be stainless steel, plastic, or made of a tungsten carbide material, the SC, ST and FC universal ferrule diameter of 2.5mm, the LC common ferrule diameter 1.25mm. Can be due to the functional characteristics of the ferrule to be produced in accordance with the precision requirements, fiber optic connector will become the primary determining characteristics. In connection ferrule, the spring container ferrule guarantee coaxial alignment between the optical fiber and LED or laser source.
With the expansion of technology development and application of fiber optic connectors rapid development. Now in the market the use of optical fiber connector is about 12 or more, each of which is to meet a specific need arises at the historic moment, of course, there are certain technical limitations. Market trend toward a moderate price, compact connector mode development, greater transmission density to support the requirements of the new transmission distribution system. As users expect that the continuous development of the telecommunications industry also contributed to the large scale application of the optical fiber, in large part due to rapid growth in the demand due to the types of communications and entertainment services on the fiber optic connection.
Traditionally, fiber optic terminal is generally slower, higher prices are also high, the equipment and technical requirements. Consider fiber singlemode cable terminal, you should take into account several factors. In some cases, we can choose according to various fiber types set up the terminal cable.
The tailor-mount applications, we can only select a specific terminal, but spliced tools, can reduce the length of single-mode fiber-site terminal extension, reduce the number of demand and technology use. For multimode optical fiber cable, spliced new method uses a simple optical fiber cutting method, the cable to be assembled into a pre-designed connector / cable. This method is very simple, just a fiber-to-fiber connector butt joints are usually used a special optical gel fiber terminal condensation.