Optical fiber transmission of 2 kW cw YAG laser and its practical application to welding

Practical application of high‐power YAG laser welding by optical fibre transmission

“…In practice, an analysis is performed of the beam intensity carried by the light, and the focusing beam intensity is evaluated. 4 Figure 4 suggests that a beam diameter of 0.53 mm is obtained.…”

A highly efficient 5kW peak power Nd:YAG laser with time-shared fiber optic beam delivery

“…It has been exploited commercially for various material processing applications such as cutting, welding, drilling, etc. in harsh environments [1]. In order to enhance the quality and range of material processing applications, it is necessary to deliver the beam through an optical fiber with core diameter and numerical aperture as low as possible.…”

Characteristics of thermal lens induced in active rod of cw Nd:YAG laser

“…High power cw Nd:YAG lasers are widely used in different industrial applications, especially for welding and cutting of metal sheets [1]. Therefore it is particularly important to predict the quality of output laser emission for the laser under construction, especially divergence, that is the basic parameter limiting the achievement of high density power on the working surface and decreasing the field of possible applications of such lasers.…”