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Panasonic DDL Laser

11.02.2020

Panasonic has unveiled the world's brightest and most powerful blue laser. This achievement was made possible by the combination of several technologies - direct diode laser (DDL) technology and wavelength beam combining (WBC) technology, due to which the device outputs a single powerful beam of blue laser light. . Moreover, this technology allows scaling to any level, and by increasing the number of laser light sources, it is possible to increase the power of the output beam to unimaginable values.

A DDL laser is a semiconductor system that emits a highly focused beam of light in a given direction. Unlike other solid-state laser technologies, DDL technology allows for smaller, more efficient devices that produce more output with less energy, and this is the key reason why such lasers are widely used in laser welding, cutting, etc. P.

Panasonic has been working in this direction for a long time. Since 2013, the company has been cooperating with TeraDiode (TDI), which developed WBC technologies, and in 2017, Panasonic simply absorbed TDI, and this made it possible to develop an effective technology for reducing the laser light wavelength in a fairly short time.

Panasonic's new laser operates in a rather narrow range of 400 to 450 nanometers, although conventional blue lasers cover a wider range of 360 to 480 nanometers. And in the output beam of the device, the energy of light emitted by hundreds of DDL lasers is concentrated. At the same time, laser diodes were made in the form of matrices located on separate semiconductor crystals, which also contain all the necessary control electronics.

The new blue laser, according to representatives of Panasonic, is an ideal device for creating micromachining technology for such complex materials as copper, silver, gold, etc., which have high thermal conductivity. The thermal conductivity of these materials requires the use of such an amount of light energy for their processing that not only laser systems generating lower energy and longer wavelength radiation are unable to supply, but also conventional blue laser systems, which lag behind the new system by at least two orders of magnitude in terms of output power.

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