Optical fiber cold after and what is the difference between optical fiber welding?

Optical fiber cold after and what is the difference between optical fiber welding? Foreword: optical fiber transmission has a large capacity of transmission bandwidth, communications, low loss, is not subject to electromagnetic interference, fiber optic cable diameter is small, light weight, the advantages of rich raw material sources, and is becoming a new transmission medium. Light in the optical fiber transmission loss can be created, the loss is mainly consist of optical fiber transmission loss and loss of fiber of welding joint. Cable once order, the basic purpose of optical fiber transmission loss but also determined that the loss of fiber of welding joint is related to fiber itself and site construction. Efforts to reduce the loss of fiber of welding joint, can increase the fiber optic repeater amplification and transmission distance attenuation of optical fiber link margin. A cold joint used in optical fiber, optical fiber docking fiber, fiber or fiber tail docking, this is equivalent to do joint ( Fiber tail docking fiber refers to dock with the tail fiber in the fiber core optical fiber instead of the former said tail fiber head) For this kind of thing called optical cold subgroups. Optical fiber cold subgroups is used when two tail fiber docking, it is a major part of the internal a precision of v groove, after two tail fiber dial fiber using cold subgroups to achieve docking two tail fiber. He operation more simply and quickly, than with welding machine welding save time. Cold meet generally has two forms: the first linker rapidly into the field; The second kind of optical fiber butt cold subgroups. With the rapid development of FTTH fiber to the home, the demand for optical fiber cold subgroups also increased greatly. Fiber quick connector and optical fiber cold subgroups will play an irreplaceable role in FTTH access, optical fiber at the scene of the quick connector technology just solve this difficult problem, without welding operation convenient and quick, low in cost, achieve anytime, anywhere access. Used for fiber butt fiber or fiber butt end fiber, this is equivalent to do joint, Fiber tail docking fiber refers to dock with the tail fiber in the fiber core optical fiber instead of the former said tail fiber head) For this kind of thing called optical cold subgroups. Optical fiber cold subgroups is used when two tail fiber docking, it is a major part of the internal a precision of v groove, after two tail fiber dial fiber using cold subgroups to achieve docking two tail fiber. He operation more simply and quickly, than with welding machine welding save time. Two fiber optic cable, fiber optic cable, welding welding is a meticulous work, especially in the preparation, welding, pan fiber end face, asked the operator observe carefully, careful consideration, operation specification. Light in the optical fiber transmission loss can be created, the loss is mainly consist of optical fiber transmission loss and loss of fiber of welding joint. Cable once order, the basic purpose of optical fiber transmission loss but also determined that the loss of fiber of welding joint is related to fiber itself and site construction. Efforts to reduce the loss of fiber of welding joint, can increase the fiber optic repeater amplification and transmission distance attenuation of optical fiber link margin. Three, cold and welding hot melt welding machine will be used, the difference between optical fiber cutting knife. Will pick up two optical fibers, do not need other auxiliary materials. Advantages are stable quality and low in consumption, About 0. 3 to 0. 05) 。 Disadvantage is high cost of equipment, equipment, storage capacity is limited. Love limit field operation. Cold don't need too much equipment, optical fiber cutting knife. But each contact needed a quick connector ( Can be said to be the mainstream of the future operation) 。 About 5 to 10 yuan. The advantage is easy operation, suitable for field operation. Big drawback loss. About 0. 1 to 0. 2 db each point. Cold subgroups, 'the current domestic can direct the production of factory is less, the cost is higher, in business and technical services have no choice, the second is the use of matching liquid, cold subgroups by using less, time is short, ageing problems need to be the test of time. Four, optical fiber welding technology to introduce what is optical fiber cutting machine? A: optical fiber cutting machine, that is, a fixed a certain way for cutting the fiber optic cable, such as device, main effect is to realize the standard smoothness and the incision is smooth, in preparation for the next optical fiber welding optical fiber welding machine is what? Answer: the optical fiber welding machine, is to cut fiber on both ends of the good, according to the standard parameter fusion connection, make the light in the normal transmission line signal is mainly do what purpose? Answer: the two devices is actually often is to do a whole tool kit of placement, it is mainly used for engineering used in optical fiber transmission signal, because the pick up of the fiber and access, fiber must be involved in the seamless connection of the main is what people need? A: now have a special training part of the optical fiber welding personnel training, the main in the training, and the degree has nothing to do, what other is mainly used in information engineering, a device is in commonly 20000 - Between 5, 100000, the main factors influencing the optical fiber splicing loss factors, which affect the optical fiber splicing loss more, generally can be divided into optical fiber intrinsic factors and extrinsic factors. 1. Optical fiber intrinsic factors is refers to the fiber itself, there are mainly four. ( 1) Optical fiber mode field diameter is inconsistent; ( 2) Two optical fiber core diameter mismatch; ( 3) Fiber core section not round; ( 4) Poor fiber core and cladding concentricity. Extrinsic factors can affect the fiber connection loss in technology. The influence of other factors. In personnel operating level, operation steps, pan fiber technology level, the degree of electrode in the welding machine is clean, welding parameter setting, the working environment clean degree and so on all can affect the splicing loss value.