News: Optoelectronics
27 March 2025
Coherent launches 793nm pump laser diode with record 28W of power and 97% polarization purity
Materials, networking and laser technology firm Coherent Corp of Saxonburg, PA, USA has launched its 793nm pump laser diode, setting what is said to be a new industry standard with 28W of power and 97% polarization purity. The product offers what is claimed to be unmatched performance and cost efficiency, unlocking new possibilities for applications in the rapidly growing thulium fiber laser market.
The increasing adoption of thulium fiber lasers in medical applications has transformed patient care, offering safer, more comfortable treatment with faster recovery times. With the market for thulium fiber lasers projected to grow significantly, Coherent reckons that the new 793nm chip is poised to meet the growing demand by enhancing laser performance, optimizing treatment time, and providing cost-effective solutions as well as enabling new applications beyond the medical market.
For the growing needs of thulium fiber laser systems, the new 793nm chip enables higher-power pumping, which translates to increased fiber laser power. In the medical market this allows shorter treatment times and better patient outcomes; beyond the medical market, it also enables new industrial applications. Additionally, the chip’s polarization purity delivers a more efficient pump design, boosting overall system efficiency and reducing operational costs. This combination of higher power and higher efficiency ensures that thulium fiber lasers can continue to evolve, providing superior performance, Coherent says.
Setting new standard in power and polarization purity
The new “class-leading” chip combines “unprecedented power and polarization purity, pushing the boundaries of what thulium fiber lasers can achieve,” says Karlheinz Gulden, senior VP, Laser Components and Subsystems, at Coherent. “Our new 793nm chip enables laser systems to be more powerful, efficient and cost-effective, which will have a profound impact on the growing thulium fiber laser market,” he reckons.
Complementary technologies and future innovations
The new 793nm chip complements the broad portfolio that Coherent offers, including fiber-coupled diode laser modules, thulium-doped fibers and optics, contributing to a complete solution for laser systems. The firm’s fiber laser business unit is also working on thulium fiber lasers that incorporate these chips, offering an integrated approach for customers seeking next-generation laser technology.
