Fiber optic fusion splicing and its applications

What is optical fiber fusion splicing?

splicing fiber optic fusion weld lines formed between two optical fibers. This is a permanent loss, the common high strength compared to other ventures such as a mechanical joint. optical fiber fusion splicing plays a key role in optical networks.

The attack on the ideal fusion process

The goal is to create a joint with minimum insertion loss, with the strength and long-term reliabilityGames of the fiber itself

The ideal process should be quick, inexpensive and requires no expensive equipment. But in reality, the process must compromise between the different applications and requirements. For example, submarine telecommunications, long-term reliability is the most important goal for fusion splicing.

Benefits

There are other approaches for interconnecting fibers such as fiber optic connectors and mechanical splices. Againstthese two, the junction of fusion has introduced many advantages as follows.

1 ° Very compact

2nd low insertion loss

3 The lower back reflection (Optical Return Loss ORL)

4 high mechanical strength

Standing 5

6 resistant to large changes in high temperature

7th prevents dust and other contaminants from entering the optical path

Various types of connections

Fusion splicing environment and applications can be divided into three types:1st 2nd Factory field splicing splicing and 3-splicing work.

An important example of splicing of the Assembly in the field of fiber optic submarine cable on board ships is to build fiber optic networks. The example of plant splicing could be the installation of fiber optic passive devices such as WDM. An example of splicing is performed by laboratory researchers of the latest fusion splicing fiber developed their compatibility with industry standard test fiber.

fusion splicing fiber conceptsmany topics including the theory of fiber optics, heat transfer, materials science, mechanical engineering, aerodynamics and more.

Introduction to the splicing

The main steps can be summarized as follows.

fiber stripping 1.Optical

The jacket is removed, and the polymer coating of optical fiber is removed fiber strippers.

2.Fiber division

The fiber is shared with the specialized tool called Fiber Cleaver. TwoFiber Cleaver types exist: high-precision fiber cleaver of the single-mode applications and the range of multimodal applications Cleaver. A mirror, as the face is almost perfectly achieved by the fission process.

Orientation 3.Fiber

The fibers are laterally approached by a stepper motor coupling. This may mean turning the polarization maintaining fiber-fiber joints.

Welding 4.Fiber

The fibers are then arc to heat or other methodsThe fiber is softening, then the two fibers to form a strong rush town.

estimated losses 5.Insertion

The insertion loss estimated on the basis of the merger of quality and / or weight.

tensile tests 6.Pull

The merger is intended to cover the opening of the evidence tested splicing pull.

7.Splice splice protection sleeve

The articulation joint fusion is then protected by a shrink with a member of the resistance of steel in anrobust and reliable fiber common.