Frankfurt Laser Company has introduced its new FBLD-9XX-50.00-2Pin, a fibre-coupled laser diode designed for pumping ytterbium (Yb) fibre amplifiers and ytterbium fibre lasers. The diode outputs 50W of power into a 105µm diameter fibre, with numerical aperture of 0.15 or 0.22. Near-IR wavelengths at 915, 940 and 976nm are available. This diode provides high efficiency, brightness, stability and excellent beam quality, and is designed for use in harsh environments, such as those found in defence, industrial and telecommunication applications. The company provides full serial number traceability and provides a testing certificate with each unit.