ML5xxx High Performance Laser Diodes

A new series of high power 808nm laser diodes from Mitsubishi Electric offers output rates up to 60W, high efficiencies and longer lifetimes. Samples are now available from Pacer International.

The ML5xxx series of high performance laser diodes (HPLDs) is available at lower asset costs and lower maintenance costs than conventional, non-semiconductor lasers. These devices bring high efficiencies and longer lifetimes to a wide range of material processing and conditioning applications, for example cutting, welding, marking, drilling and surface treatment. They are also finding use in the medical sector, test and measurement, and scientific applications.

The ML5xxx devices are typically used in stacks for diode-pumped solid state (DPSS) lasers in order to achieve output power rates of several thousand Watts with high beam quality.

ML5CPxx laser bars provide a stable oscillation with an emission wavelength of 807nm and standard CW light output power rates of up to 60W. The multi-emitter chip measures just 10mm x 1.0mm or 10mm x 1.2mm. Different electrode structures enable good bonding capabilities for AuSn and In solders. Low internal losses improve the slope efficiency and reduce operating current. ML5CP8 has an Al-free single quantum well active layer, which prevents catastrophic optical degradation even at extremely high output powers and leads to highly reliable operation.

The single emitter ML561E10-01 has a CW light output of at least 1.0W at an emission wavelength of typically 805nm. The device is integrated in a TO-CAN package with a diameter of 10.5mm. Due to the Al-free MOCVD structure, this laser diode’s active layer is highly reliable, and can generate an optical output power several times as high as the nominal output.