Optical Fiber Fusion Splicing and Its Applications

What is optical fiber fusion splicing?

optical fiber fusion splicing is a welded seam between two optical format. This is a permanent loss, high strength together with other joint venture as a mechanical connection. Joints in optical fiber fusion play a crucial role in the optical network.

The ideal fusion splicing process

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

The ideal process should be quick, inexpensive and requires no expensive equipment. But in reality the process needs to compromise between different applications and requirements. For example, submarine telecommunications, the 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. Respectthese two fusion splicing has many advantages as explained below.

Before Very compact

According Low insertion loss

Third lowest back reflection (optical return loss ENT)

Fourth Highest mechanical strength

Fifth Permanent

Sixth Supports up to extreme temperature changes high

Seventh Prevents dust and other contaminants from entering the optical path

Many types of splicing

Fusion splicing environment and applications can be divided into three groupsTypes: a second field splicing Factory Labor splicing and 3-splicing.

An important example of field assembly of splicing fiber optic submarine on board ships is to build fiber optic networks. The example of factory splicing could be the installation of fiber optic passive devices such as a WDM. An example of laboratory-splicing is made from the latest fiber fusion splicing researchers developed their compatibility with current industry standard test fiber.

Fiber fusion splicingincludes concepts from many areas, including fiber optics theory, heat transfer, materials science, mechanical engineering, aerodynamics and more.

Introduction to the process of splicing

The main steps can be summarized as follows.

1.Optical fiber stripping

The jacket is removed and the polymer coating of optical fiber cable fiber optic fiber is stripped strippers.

2.Fiber attachment

The fiber is cleaved withspecialized tool called Fiber Cleaver. Two types of fibers exist Cleaver: Cleaver Fiber High precision single-mode applications and the cleaver field for multimodal applications. A mirror, as almost perfect face is obtained from the fission process.

3.Fiber Guidance

The fibers are laterally approximated by step motor in a fusion splicer. This may mean turning the polarization maintaining fiber-fiber joints.

4.Fiber welding

The fibers are thenheated by electric arc or other methods to increase softening point of the fiber and then the two fibers together, pressed to form a solid joint.

5.Insertion loss estimation

The insertion loss estimate based on fusion of quality and / or weight.

tensile tests 6.Pull

The merger is intended to cover the opening of the head pull test fusion splicer.

7.Splice splice protection sleeve

The articulation joint fusion is then protected with shrink tubingwith a member strength steel in forming a solid and reliable fiber common.

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