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Jenoptik laser technology to combat sea parasites

A rather unusual application: Jenoptik’s Lasers & Material Processing division is supplying the Norwegian company Stingray Marine Solutions AS with lasers to combat parasites that attack farmed salmon.

To successfully rid farmed salmon in Norwegian waters from parasites, the company Stingray Marine Solutions AS is using the extremely precise Jenoptik laser JenLas® D2.8 with green laser beam. This is installed into a barrel-like casing that is submerged directly into the net pens. While the salmon swim past this device they are scanned by highly complex camera systems. Whenever the outer shape of the so-called sea lice is recognized on the fish’s skin, a short laser impulse is released that destroys the tissue of the parasite without damaging the fish. The reaction in real time is enabled by real time software that has been specifically adapted for this purpose. The system is controlled and monitored online which allows this technology to be used permanently.

The cooperation with the Norwegian company began at the end of 2012. Since then the idea of combating sea lice with laser has developed into a system which has received several awards for its design and process. One main reason for this is that the use of Stingray units has a positive effect on the environment and the health of the consumers. Previously the around 8 to 12 millimeter large parasites that cling to the skin of fish and weaken the salmon could only be destroyed using chemicals. In the long run this leads to severe damage to the oceans near the fish farms.

Through the cooperation with the Norwegians, Jenoptik is developing a new field of application for its proven laser technology. The JenLas® D2 technology has been a core competence of Jenoptik for as long as 14 years. As a beam source, the laser is used especially in the field of medicine. Here, mainly in ophthalmology, laser endoscopy and dermatology. In addition to those medical applications, the laser is also being used successfully in the field of entertainment for laser shows and projections.

About the Lasers & Material Processing division of Jenoptik

With its Lasers & Material Processing division, Jenoptik is one of the leading providers of laser technology and provides products and solutions along the entire value-added chain of laser material processing – from components up to complete laser systems. In the Lasers business unit, the company has specialized in high-quality semiconductor lasers, reliable diode lasers as modules or systems as well as innovative solid-state lasers such as disk and fiber lasers. This product portfolio makes Jenoptik the ideal partner for the entire pulse width range, from cw to fs. In the field of high-power diode lasers, the company is acknowledged as a worldwide quality leader.

In the Laser Processing Systems business unit, Jenoptik develops and manufactures laser machines which are integrated into its customers’ production lines as a part of their process optimization and automation. Jenoptik laser systems ensure processing of plastics and metals at maximum efficiency, precision and safety. In addition, customers can try out various laser sources and machines at the Application Centers, thus finding the optimal solution for their application. The product portfolio is rounded off with energy-efficient and environmentally friendly exhaust cleaning systems for residue-free removal of pollutants during laser processing and other industrial processes.