X Photonics 878.6 ±0.5 nm, 30 W laser diode

The WS878030200S-T is a 30 W, 878 nm ±0.5 nm wavelength-stabilised fiber-coupled diode laser module designed for precision fiber laser pumping and other wavelength-locked applications. Engineered with X Photonics’ high-reliability multiple-emitter coupling technology, it delivers stable optical performance with a typical conversion efficiency of 45%. The 200/220 µm fiber and SMA905 connector ensure consistent beam quality and robust integration within demanding industrial and research systems.

Optimised for reliability, this module maintains peak spectral performance through a narrow linewidth of 0.5 nm (FWHM) and wavelength stability across the full 5 °C – 45 °C operating range. The WS878030200S-T’s package supports long-term thermal stability, aided by an efficient thermal path that limits package deformation even under variable load. A back-reflection isolation rating of 30 dB protects the diodes against feedback, extending operational lifetime in multi-stage optical setups.

Compact and mechanically durable at just 83 g, the WS878030200S-T is ideal for OEM fiber laser systems, solid-state laser pumping, and precision optical instrumentation. Its high efficiency and stable 878 nm emission make it particularly suited for Yb-doped and Nd-doped laser architectures requiring narrowband excitation. Built to X Photonics’ ISO-certified quality standards, this module embodies reliability and performance for continuous-wave laser operations in industrial and scientific environments.