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In modern manufacturing, laser processing is one of the developed processing technologies at this stage, which provides an effective way for the development of various new products. In the field of laser application technology, the key basic core component is the laser. The laser matrix materials used in the laser are laser crystals, which can convert the externally provided energy into highly parallel and monochromatic lasers related in time and space through optical resonators. After decades of development, laser crystals have increased from several kinds at that time to dozens of kinds. There are mainly three kinds of widely used: neodymium doped yttrium aluminum garnet (nd:yag); Neodymium doped yttrium vanadate (nd:yvo4) and titanium doped sapphire (ti:al2o3). Let's take a look at the relevant instructions given by Guangbao optoelectronics:

1、Nd:YAG

Neodymium doped yttrium aluminum garnet laser crystal has the advantages of good optical uniformity, good performance, high physical and chemical stability, good thermal conductivity and so on. It is an important, perfect and core laser crystal material so far. It can be said that the emergence of Nd doped yttrium aluminum garnet has led to the fundamental development of solid-state lasers and the realization of commercialization.

2、Nd:YVO4

Neodymium doped yttrium vanadate crystal is a kind of laser crystal with high performance, which is mainly used to manufacture laser diode pumps, especially low and medium power lasers. Compared with neodymium doped yttrium aluminum garnet, neodymium doped yttrium vanadate has higher absorption coefficient and larger stimulated emission cross section. Laser diode pumped neodymium doped yttrium vanadate crystal and LBO, BBO, KTP and other high nonlinear index crystals can achieve high frequency doubling conversion efficiency, and can be made into all solid-state lasers with near-infrared, green, blue to ultraviolet output.

3、Ti:Al2O3

In the 1970s and 1980s, ultrafast lasers mainly used passively mode-locked dye lasers, which can form sub PS short pulse lasers. In the late 1980s, researchers found titanium sapphire (ti:al2o3) with a tunable range of 660-1100nm. Its bandwidth is very conducive to the realization of fs laser pulses, and has the advantages of large stimulated emission cross-section and high laser damage threshold.

At the beginning of the 21st century, researchers used Kerr lens to passively lock mode, and won laser pulses with an average power of 100MW and a pulse width of 5, v6fs, and * realized wavelength broadband (400nm) tuning under fs pulse operation. Since then, Ti: sapphire laser has almost replaced the dye laser in the category of ultrashort pulse laser and become the main ultrashort pulse laser oscillator.

The above are several common basic materials of laser crystals introduced by Guangbao optoelectronics, which you can refer to. Later, we will regularly update you with more information about laser crystals, nonlinear crystals and other related content. You can pay attention to us at any time, or you can call us directly if you have any questions.