Optical fiber cold connection advantage

Optical communication is now the dominant network transmission method in society, which is nothing more than because it has many advantages and is now a new transmission medium. The time that light transmits in the optical fiber will also have loss, and this type of loss is mainly due to the transmission loss of the optical fiber and the splice loss at the optical fiber joint.

Optical fiber Lengjie is used for optical fiber butt optical fiber or optical fiber docking pigtail, which is equivalent to making a joint, (fiber docking pigtail refers to the butt joint between the optical fiber and the core of the pigtail, not the pigtail head mentioned by the former), used for this kind of Cold splices are called optical fiber cold splices.

The optical fiber cold splicer is used when the two pigtails are butted. The main component inside is a precise v-groove. After the two pigtails are pulled out, the cold splicer is used to realize the butt of the two pigtails. It is easier and faster to operate and saves time than welding with a welding machine. With the rapid development of FTTH fiber-to-the-home, the demand for optical fiber cold splices has also greatly increased.

The first monitoring and sorting of optical fiber quick connectors and optical fiber cold splices will play an irreplaceable role in FTTH access. The field termination technology of optical fiber quick connectors just solves this problem. The operation is convenient and fast without fusion splicing, and the connection cost is low. Access anywhere.

Optical fiber cold splicing and hot melting

The steps of optical fiber cold splicing are as follows:

① First install the cold connector, buckle the snap rings on both sides, and snap down the middle slot;

② Strip the fiber, strip about 3CM long, and wipe it with alcohol;

③ Put in the cutting knife and cut about 1.4CM;

④ Insert one end of the cold connector and strip the other fiber, about 3CM;

⑤ Wipe with alcohol cotton, put in the cutting knife, cut the length about 1.4CM, and insert the other end of the cold connector;

At this point, it should be noted that:

The bare fibers at both ends need to be snapped into the snap ring in the middle of the cold splicer, and the snap rings on both sides should be pushed tightly, and then tested, and the production is successful.

Fiber optic cable fusion is a meticulous work, especially in the process of end face preparation, fusion splicing, fiber coiling, etc., which requires the operator to observe carefully, consider carefully, and operate in a standardized way.

When light is transmitted in an optical fiber, a loss will occur, and this loss is mainly composed of the transmission loss of the optical fiber itself and the splice loss at the optical fiber joint. Once the optical cable is ordered, the transmission loss of the optical fiber itself is basically determined, and the splice loss at the optical fiber joint is related to the optical fiber itself and on-site construction. Efforts to reduce the splice loss at the optical fiber joint can increase the optical fiber relay amplification transmission distance and improve the attenuation margin of the optical fiber link.

Hot Melt

A fusion splicer and a fiber cutter are required. To connect two fibers, no other auxiliary materials are required.

The advantage is that the quality is stable and the connection loss is small (about 0.03 to 0.05).

The disadvantage is that the cost of the equipment is too high, and the power storage capacity of the equipment is limited. Field work loves restrictions.

cold connection

It doesn't require much equipment, just a fiber cutter. But each contact needs a quick connector (it can be said to be the mainstream operation in the future).

The advantage is that it is easy to operate and suitable for field operations.