Routing laser energy though laser fiber

Routing laser

Routing laser using laser fiber

When routing laser energy though laser fiber, make sure the delivery fiber does not exceed its minimum bend radius (usually around 6 inches, or 150mm) because bending a fiber beyond this limit may overstress the fiber, leading to potential power losses or in the worst case, a broken fiber.

It is rare for a fiber to fail, but it is nonetheless serious when such a situation occur. The potential can be prevented by equipping the system with fiber breakage detection, which can sense when the fiber has been damaged. The more advanced detection systems test the fiber prior to firing of the laser. Best working practice is to route the fiber above ground, not touching the floor between the laser and workstation to avoid the possibility of crushing the fiber, then coil and hang excess fiber length at the workstation. If the focus head will be moving in the case of a robotic arm, give sufficient slack, and again make sure the fiber’s connection to the focus head avoids exceeding the minimum bend radius.

Routing laser

Most system integrators will usually provide the correct space within the workstation, but it is important to note that cable management from the workstation to the laser is the responsibility of the end user. It is also worth noting that increasing the length of the fiber does not result in a significant decrease in delivered power as the delivery of the laser through the fiber is very efficient. The main power losses occur at the fiber’s entry and exit from the laser. It is important to keep the entry and exit point clean,  free from debries, dust, oil and solvants.

Please read our post on maintenance of optics for some tips on how to increase lifespan of your optics by regular maintenance.

Allowable bending radius


D80 connector repair laser fiber repair

D80 connector repair D80 connector repair

D80 connector

Laser fiber connectors can be replaced in cases where connector can be broke or disconnected due to workplace accidents. In many cases, D80 connectors break off together with part of the laser fiber. When this happens, the fiber cannot be used. The laser machine has to be switched off immediately and laser fiber to be disconnected from the machine. Please be careful not to touch the fiber ends as the sharp glass fiber may cut your fingers. Do not point the broken fiber directly at your eyes. After handling the broken fiber, please wash your hands immediately as their might be tiny glass bits that might injure you.

When packing the damaged fiber, please conceal both ends with protection cap or end cap to prevent the handler from getting cut by the broken fiber. When received at our repair facility, we will inspect the fiber and check if there is any internal breakage in the fiber. We will also inspect both the D80 connector ends.

Most times, the D80 connector has to be replaced because it might have burnt out or the connector is broken. In the picture above, we will cut away the old connector and replace with a new D80 connector. This will be included in the basic fiber repair package. We will provide our customer with a primarily check report together with cost estimates of repairing the fiber.

At Gold Technic, we can also provide fiber termination services. If you have 50 meter fibers and would consider separating them into 2 pieces of 25meters, we can also provide this service.

By repairing your fiber, you can reduce manufacturing waste, be earth friendly, and reduce manufacturing cost. This is the best solution for any factory worldwide. Please contact us at for more information on our products,