3 September 2020
Ushio adds new 600mW 405nm violet lasers
Ushio Inc of Tokyo, Japan has added to its violet laser diode (LD) product line-up by releasing the HL40113MG and HL40115MG (with two different internal circuits – the latter has a built-in monitoring photodiode). The new models emit at a wavelength of 405nm and have continuous wave (CW) optical output power of 600mW. Although they share characteristics with existing Ushio laser diodes, they bring several significant areas of improvement, including wall-plug efficiency (WPE), slope efficiency (the amount of input current used for optical light output power), and an extended overall lifetime.
For comparison, HL40113MG and HL40115MG offer a seven-point increase in wall-plug efficiency (to 28.6% and 21.4%, respectively) over the existing HL40063MG and HL40065MG laser diodes, further reducing power consumption and heat dissipation requirements. The HL40113MG and HL40115MG also provide an 18% improvement in slope efficiency, allowing advances in overall system optimization.
The HL40113MG and HL40115MG additionally improve their laser diode lifetime by 40% compared with the HL40063MG and HL40065MG.
The new lasers have a low operating current of 500mA (typical) and a low operating voltage of 4.2V (typical). They come in Ushio’s standard MG (TO-56) 5.6mm-diameter can package.
Ushio says that continuous development of its laser portfolio enables longer-lasting, more productive and more cost-efficient violet laser systems.
The latest laser diodes are specifically optimized for applications such as laser direct imaging, including photolithography and printed circuit board (PCB) manufacturing, as well as many bio-medical and life science applications.