nLIGHT Introduces New Highly Doped, Photodarkening Resistant Ytterbium Fibers

nLIGHT Corporation (nLIGHT) announced today the availability of new highly doped, photodarkening resistant ytterbium fibers with up to 60 percent (%) higher absorption at 920 nanometer (nm) and pump conversion efficiencies routinely over 75 %.

In 2005 the fiber division of nLIGHT, previously LIEKKI Corporation, was the first active fiber manufacturer to publish techniques for efficiently measuring and mitigating photodarkening with its proprietary direct nanoparticle deposition (DND) fiber production technology. This effort has continued unabated and resulted in new fiber designs and processes to further reduce the detrimental effects of photodarkening.

The large mode area (LMA), low numerical aperture (NA) fibers offered by nLIGHT today exhibit a fivefold decrease in loss under accelerated stress testing conditions. The loss of LMA, high NA fibers is even below the measurement capability of the accelerated test. In addition these new ytterbium fibers offer up to 60 % higher absorption at 920 nm and show pump conversion efficiencies routinely over 75 %.

The new photodarkening resistant LIEKKITM ytterbium fibers are available in core/clad geometries ranging from 7/125 µm to 30/250 µm in non-polarization and polarization maintaining versions.

Tell Us What You Think

Do you have a review, update or anything you would like to add to this news story?

Leave your feedback
Your comment type
Submit

While we only use edited and approved content for Azthena answers, it may on occasions provide incorrect responses. Please confirm any data provided with the related suppliers or authors. We do not provide medical advice, if you search for medical information you must always consult a medical professional before acting on any information provided.

Your questions, but not your email details will be shared with OpenAI and retained for 30 days in accordance with their privacy principles.

Please do not ask questions that use sensitive or confidential information.

Read the full Terms & Conditions.