X Photonics 976 nm±0.5 nm, 500 W laser diode

The WS976500220-M from X Photonics is a 500 W fiber-coupled, wavelength-stabilized diode laser module operating at 976 nm, engineered for high-performance fiber laser pumping. Built on a multiple single-emitter coupling design, it achieves outstanding reliability and uniform optical power delivery. Its precise wavelength locking ensures stable operation even under high thermal and electrical loads, making it ideal for driving high-power continuous-wave (CW) and pulsed fiber lasers.

Featuring a 220 µm core fiber with a numerical aperture of 0.22 and spectral width below 1 nm, this module delivers tightly controlled beam quality with excellent coupling efficiency. The WS976500220-M provides a conversion efficiency of 45%, stable output at 20 A operating current, and robust anti-reflection protection across 1040–1200 nm, ensuring long-term durability in demanding environments. The package design supports efficient thermal management with operating temperatures from 20 °C to 30 °C, maintaining peak optical performance and wavelength stability (0.03 nm/°C).

Designed for industrial and scientific applications, the WS976500220-M is the preferred choice for precision fiber laser systems, materials processing and ultrafast laser pumping. Its mechanically reinforced housing and flexible lid design reduce deformation under load, ensuring consistent optical alignment and long operational life. Combining efficiency, stability, and mechanical robustness, this laser module exemplifies X Photonics’ commitment to delivering world-class diode laser technology for high-demand applications.