Fibre diode can replace pumped solid-state lasers

With features that include 100W of output from a single fibre optic and a divergence of less than 120 mrad, Trumpf describes the performance of its new diode module as groundbreaking.

The passively cooled module is now the basis of the recently launched Trumpf TruDiode diode direct laser series. It generates a laser beam of the highest quality and, as a result of this, even in the multi-kW range, the TruDiode laser is suited to welding applications where lamp-pumped solid state lasers are currently used. By comparison with the lamp-pumped alternatives, the TruDiode has a wall plug efficiency of 40 per cent –that is, it is far better at converting electrical power into optical power. It also has a service life in the region of 50,000 hours. A further advantage of the diode module is its small size of just 8 by 6 by 3 cm, which allows it to be accommodated in systems where space is limited.