16 September 2024
Optical Fiber, Ytterbium Fiber

Success Story: Express Development of a LMA Ytterbium Fiber, Perfect for Laser Cleaning Systems!

While Coractive’s research and development team enjoys working on projects that require long and complex research, they are sometimes also tasked with developing fibers for clients who need them very quickly!

We received a request from a client in the laser cleaning field to produce a large core fiber, over one hundred microns, with specific requirements beyond what we had done in the past. Adding to the challenge, this product needed to be ready to ship to the client in less than a month!

Norberto Ramirez, a member of the product development team for over three years, was the one who completed the project. Time was short, so he immediately initiated rapid prototyping steps.

 

Resolving an Overheating Issue

 

Yb-LMA type fibers already exist on the market, but certain applications require customized parameters. For example, one of the goals was to maintain good laser performance while reducing the fiber heating, an issue that can cause damage to the fiber and even jeopardize the technology.

Our challenge? To produce an optical fiber with customized parameters in less than a month, thus avoiding the need for the client to add a more powerful fiber cooling technology to the laser system.

Another major difficulty for our colleague was addressing the challenge of photodarkening, a detrimental phenomenon that can occur in Ytterbium-doped fibers. An excellent understanding of the chemistry of the fiber’s active core materials is necessary, as precise adjustments to the chemical components are required to achieve and optimize the specifications. Fortunately, our experience in manufacturing Ytterbium-doped fibers allowed us to immediately target an optimal chemical composition.

 

When Precision and Meticulousness Are Key

 

Certainly, we had in hand some technical specifications, but discussions with the client were also necessary to fully understand their needs and application. By optimizing the chemical composition of the fiber, we were able to present a new design with more advantageous specifications for the client.

With a solid understanding of the client’s desired chemistry, simulations, and precise discussions on the requested objectives, the timeline was more than expedited! The result: We were able to obtain a fiber prototype very quickly!

“For this project, I made a minimal number of iterations. This was possible thanks to precise design calculations before fabrication and a good analysis of the core composition,” explains Norberto Ramirez, PhD.

This challenge required precise work from our colleague and almost a race against time, as the clock was ticking. The margin of error was definitely at its thinnest.

Once sent to the client, we were more than happy to see that this new fiber was a success! We are now at the stage of continuous improvement, aiming to produce it at higher volumes for multiple clients in the field.

The secret of this success? Good communication with the client, precise requests, and above all, a solid team with diverse knowledge able to face many challenges, sometimes even solo, as it was the case for Norberto!

With the ability to produce both high-volume and custom fibers, Coractive can definitely become your go-to partner to elevate your technology to the next level!

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