Optical fiber connector performance
With the continuous development of optical fiber communication technology, especially the development of high-speed local area networks and optical access networks, optical fiber connectors will be more widely used in optical fiber systems. At the same time, more and higher optical fiber connectors have been proposed. Requirements, its main development direction is: miniaturization of appearance, lower cost, and higher and higher performance requirements. In the future, various newly developed optical fiber connectors of connectors will be compared with traditional FC , SC and other connectors together, provide useful help for China's communications reconnaissance industry, so let's explain to you the performance parameters of optical fiber connectors.
The performance of optical fiber connectors is first of all optical performance. In addition, the interchangeability, repeatability, tensile strength, temperature and number of insertions and removals of optical fiber connectors must also be considered.
1. Optical performance.
The requirements for optical performance of optical fiber connectors are mainly the two most basic parameters of insertion loss and return loss.
Insertion Loss (InsertionLoss) is the connection loss, which refers to the loss of the effective optical power of the link caused by the conduction of the connector. The smaller the insertion loss, the better. Generally, it should be no more than 0.5dB.
Return Loss (ReturnLoss, ReflectionLoss) refers to the ability of the connector to suppress the link optical power reflection connector, and its typical value should not be less than 25dB. For the actual application of the connector, the pin surface has been specially polished, which can make The return loss is greater, generally not less than 45dB.
2. Interchangeability and repeatability.
Optical fiber connectors are universal passive components. Generally, the same type of optical fiber connectors can be used in any combination and can be used repeatedly. The additional loss introduced by electronic connectors is generally less than 0.2dB. In the range.
3. Tensile strength.
For a finished fiber optic connector, it is generally required that its tensile strength should not be less than 90N.
Generally, the optical fiber connector must be able to be used normally under the temperature of -40oC~+70oC.
The top five application areas of global connector sales are: automobiles, computers and peripherals, communications, industrial equipment, industrial connectors, and aerospace and military applications. The top five applications with growth rates are consumer electronics and transportation electronics. , Medical electronics, communication electronics, computers and peripherals. Among them, medical electronics has become a new growth point for connector applications. With the implementation of my country’s new medical reform and the continuous improvement of the level of medical information technology, the market demand for connectors in the medical field in my country continues to increase increase.
So far, the connector has developed into a complete product range, a rich variety of boards and panels, a variety of structural types, a subdivision of professional directions, obvious industry characteristics, and a serialized and professional standard system.
To be precise, the terminal is a part of the connector, and the connector is a general term. In fact, the commonly used connectors usually include two parts: housing and terminal. Housing is mostly plastic, which plays a protective role. , The pin header terminal is metal, which plays a conductive role. The memory slot can be understood as the plastic part is the pin (pin) in the housing as the terminal. Many domestic purchases that do not understand the metal terminal are collectively called the terminal, and the plastic shell is collectively called the connection. Device.
Generally, the development of connector technology has the following characteristics: higher signal transmission rate, integration of various signal transmissions, and small-row female type of product size. As the leader of connectors, we should closely follow the development trend of connectors and master In the main production line, among the many trends in connector development, the first point to be grasped is the miniaturization of the connector, and the size of the connector is the basic requirement. Imagine if you ignore this point of view, the production of a very functional Powerful connectors, due to the inconvenience and incompatibility of the product size, lead to invalid connectors, which will be a very unfortunate result.