What is optical fiber fusion splicing

?

Optical fiber fusion splicing is a welded seam between two optical fibers formed. Fusion splicing is a permanent loss, high-strength connection in comparison to other companies as a temporary mechanical splice. Fusion splicing optical fibers play a crucial role in the optical network.

The ideal fusion splicing

The goal of fusion splicing fiber is a joint with minimum insertion loss even with high strength and long-term reliability, the fiber to create their own games.

The ideal of the fusion splicing process should be quick, inexpensive and should not require expensive equipment. But in reality, the process of fusion splicing of compromise between different applications and requirements. For example, for telecommunications submarine is the long-term reliability the most important goal for fusion splicing.

The advantages of fiber optic />
splicing
There are other approaches to the combination of fibers such as fiber optic connectors and mechanical splices. In comparison to these two fusion splicing has many advantages, as described below.

1. Fusion splicing is very compact
2. Fusion splicing has the lowest insertion loss /> 3. Fusion splicing has the lowest back reflection (optical return loss ENT)
4. Fusion splicing has the highest mechanical />
5. Fusion splicing is />
6. Fusion splicing can withstand high temperature fluctuations
7. Fusion splicing prevents dust and other contaminants into the optical path

Fusion-type

1: fusion splicing environment and applications can be classified into three types. Field 2 splicing. Factory splicing and 3 Laboratory splicing.

An important example of field splicing, the installation of submarine fiber board use of the fiber. The example is the plant could splice all fiber passive devices such as WDM. An example of splicing lab is developed by fusion researchers newest fibers to splice their compatibility with existing industry-standard test fibers.

Fiber fusion splicing includes concepts of many topics, including the theory of optical waveguides, heat transfer, materials science, engineering mechanics, fluid mechanics, and more.

Introduction /> Fusion splicing
The main steps of splicing fiber optic fusion can be summarized as follows.

1. Fiber Stripping />
The jacket of the fiber cable is removed, the fiber-coating polymer optical fiber is stripped off with strippers.

2. Fiber splitting

The fiber is cut with a special tool called fiber breaking tool. Two types of fiber ax exist: high-precision fiber breaking tool for single-mode applications and a helicopter on the ground for multimodal applications. A mirror as near perfect front-end is achieved by the fission process.

3. Fiber Alignment />
The fibers are laterally with each step motor is aligned in a splice. This can also be rotational polarization maintaining fibers in fiber splicing.

4. Fiber Welding />
The fibers are then heated by the arc method or other softening of the fiber, two fibers are then pressed to form a strong connection.

5. Insertion loss estimate />
The insertion loss is based on the melting quality and size estimated.

6. Train-pull test />
The merger is taking testing to assess the evidence at the opening of the lid splicing.

7. Splices with splice sleeve

The fusion joint is then protected by a shrink tube with a member strength of the steel within a strong and reliable fiber joint.


Fiber optic cable