Green laser Pointers used everywhere

The green laser pointer is always designed as a pen. In the laser pointer recommendation, select only the air cooling system. In every continuously operating laser age, the laser beam is always very stable and visible. The operation is also very simple and practical. After releasing the back cover, the laser operator simply plugs in two AAA batteries. According to the correct insertion of the battery in the correct direction, the green laser designator will start working and you will see a very bright and clear green laser. Have yellow laser Pointers emitting 593.5 nm been available in the last few years? Based on the DPSS process, in this case, two Nd laser lines (YVO4, 1064nm and 1342nm) are added to the nonlinear crystal. Due to the complexity of the process, these laser Pointers are inherently unstable and inefficient. The power spectrum ranges from 1mW to about 10mW and varies greatly with temperature. For hot or cold temperatures, it is usually in jump mode. This is because complex processes may require temperature ballasts and active cooling that cannot be installed on small mainframes.