pulse-pressure
发表于 2025-3-25 05:21:42
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懒惰民族
发表于 2025-3-25 10:36:17
https://doi.org/10.1007/978-3-540-46585-0Laser; basics; crystal; high power laser; laser diode; material processing; optics; solid state laser; solid
隐藏
发表于 2025-3-25 14:00:52
Gaussian Opticsquality of the radiation field, particularly the intensity distribution, determines, next to the laser power, the field of laser applications. Therefore the laser beam must be characterized with respect to its optical qualities. In this chapter Gaussian optics is applied, which means:
anus928
发表于 2025-3-25 16:04:54
Thermal Effectsdation of the beam quality and fmally a fracture of the crystal. The heating therefore determines the beam quality and the maximal laser output power. The exact knowledge of the various heating mechanisms is therefore important and will be discussed in some detail.
insular
发表于 2025-3-25 21:18:25
Material Processingities the heat is supplied to the workpiece so fast that losses due to heat conduction during welding and cutting are negligible. Nevertheless, the heat conduction is used for transformation hardening. Fig. 10.1 shows the laser cutting of a copper tube as an example.
彻底检查
发表于 2025-3-26 00:14:48
Laser Materialsen into account, for which laser activity has been proven for pulse or cw-operation at room temperature with an efficiency of about 1% lamp or diode with excitation and which are commercially available. Further details are provided in the subsequent chapters.
经典
发表于 2025-3-26 07:50:47
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inspiration
发表于 2025-3-26 10:06:38
Beam SourceThe principle setup of a pulsed solid state laser for material processing is shown in the following block diagram (Fig. 5.1). The setups for cw, pulsed or Q-switched operations are similar.
backdrop
发表于 2025-3-26 16:41:12
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平静生活
发表于 2025-3-26 17:39:57
OpticsThe focus diameter, the working distance, the divergence and the beam diameter are predefmed by the application problem and the beam source used. With that, the necessary optics can be completely calculated.