Laser cutting machine solid state laser design stages

Machine

of laser cutting is the use of laser solid state in the solid state of the substance as a laser material of a laser working. 1960, ruby ​​laser TH Maiman invention is solid state lasers, is the world's first laser. Of semiconductor lasers are generally composed of a laser material, the excitation source, the cavity resonator mirrors and capacitor power supply and other components.

1 How to choose the laser medium? (What you choose to do this laser means, such as Nd YAG or Nd YLF or Nd YVO 4, if you need an energy frequency single pulse repetition high is low, then choose Dd YLF so if you need to select single pulse of high energy and low repetition frequency, then the best choice Nd YVO 4, of course, Nd YAG, although both can, but it its limitations, but must now also consider the media lab and products are able to do so much power);

2 Structure of the pump how to choose? (Structure of the pump includes pumps range, secondary pumps, surface, etc., then the reasons for choosing each of these structures and what is it? Consider these factors?)

3 cooling How to choose? (This question must be discussed in the structure of the pump together, because it limits the structure of the pump or air-cooled, air-cooled or cooled with TEC cooling or heat pipes cooled with water Have you seen those cool way, it is best to provide references) how

4 cavity choose? (Roughly divided cavity resonator cavity stable, unstable, and choose what were the reasons for which the cavity is it? Each cavity structure also includes a number of specific structures, such as stability chamber also has a large number as confocal total for the heart, concave, etc., justification of choice, what is it? cavity design should also consider compensation for the thermal effect of the lens, so how temperature compensation it?) ## ##

lens 5 How to choose the mold? Select (Mode of us can be divided into two categories, one is the selection of the transverse mode, and the other is a longitudinal mode, and select the transverse mode on the approach to the design of diaphragm opening placed in any position, there is also both those with the cavity and the relationship of the length of the cavity, since the transverse mode is selected depends on various modes having different diffraction losses obtained, while the selection of the single longitudinal mode includigold mining equipment rock crushersng special sheet insertion Bruce, networks, prisms, of birefringent wave plate Standard with other methods; What then these methods have the disadvantage of it, I do not have the selection of these methods it)

6 overall structure of how to choose ??? (General structuchrome processing plantsre here refers primarily to the use of a single oscillator or MOPA configuration, if you use the MOPA structure, then the number of levels you want to use, how to eliminate interstage utility)