The principle of fiber optic welding machine

The principle of fiber optic welding machine mainly involves the application of laser technology, and its core is to use high-energy beams to melt and connect the ends of two optical fibers together. The following is a detailed explanation of the principle of the fiber optic welding machine:

1、 Laser Generation and Transmission

Laser Generator: The fiber optic welding machine is equipped with a built-in laser generator that can generate high-power density laser beams. These laser beams are typically generated by semiconductor pumped solid-state lasers (such as YAG lasers or CO2 lasers), which are widely used in fiber welding due to their high energy density and stability.

Fiber optic transmission: The generated laser beam is transmitted through fiber optic as a transmission medium to the working area of the welding machine. The choice of optical fiber (such as single-mode fiber or multi-mode fiber) will affect the quality and transmission efficiency of the light beam. Single mode optical fibers are often used in applications that require high-precision welding due to their good directionality, coherence, and focusing ability.

2、 Beam focusing and melting

Beam focusing: In the working area, the laser beam is focused onto a very small point through a focusing lens, which has an extremely high energy density enough to rapidly heat up the end of the fiber in a short period of time.

Fusion connection: When the laser beam is focused on the end of the fiber, its high energy rapidly heats up the fiber core and cladding material to the melting point, forming a molten pool. During this process, the ends of the optical fibers will gradually soften and fuse with each other, forming a continuous optical connection.

3、 Curing and Connection

Curing process: After the fiber end is completely fused, the welding machine will stop emitting the laser beam and allow the molten pool to naturally cool and solidify for a certain period of time. During this process, the melted fiber optic material will crystallize again, forming a sturdy connection point.

Quality control: Welding machines are usually equipped with precision control systems to monitor parameters such as temperature, time, and beam quality during the welding process to ensure the stability and quality of the welding.

4、 Application and advantages

Application areas: Fiber optic welding machines play an important role in the construction and maintenance of fiber optic communication networks, as well as the manufacturing of fiber optic sensors. They can achieve high-quality connections between optical fibers, improving the reliability and stability of communication.

Advantages: The fiber optic welding machine has the advantages of non-contact welding, small heat affected zone, fast welding speed, and high production efficiency. These advantages make fiber optic welding machines widely used in fiber optic communication and other related industries.

In summary, the principle of the fiber optic welding machine is to generate a high-energy laser beam through a laser generator, which is transmitted through the fiber optic and focused by a focusing lens to melt and connect the fiber ends together. This process requires a precise control system to ensure the stability and quality of welding.