Advantages and disadvantages of YAG laser

YAG laser is a solid laser based on a yttrium aluminum garnet. The chemical formula of yttrium aluminum garnet is Y3Al5O15. As with other solid lasers, the basic parts of the YAG laser are the laser working material and also the pump source harmonious vibration cavity.

However due to the activation of doping ions in the crystal, different sort of pump resources are made use of, as well as the pump, differently embraced by the tooth cavity structure, is various. The various other functional structure of the tool, the YAG laser, can be split into a range of, as an example, according to the output waveform, it can be separated right into constant wave frequency YAG laser, YAG laser and pulse laser, etc.

According to the functioning wavelength, it can be divided into 1.06 μmYAG laser, frequency-doubled YAG laser, Raman frequency change YAG laser as well as tunable YAG laser, etc. Various doping can be separated right into Nd: YAG laser, doped Ho, Tm, Er and so on YAG laser; According to the crystal shape, it can be split into a bar and strip YAG laser. The various outcome power can be divided right into high power and also small power YAG laser.

YAG laser using Er: YAG Crystal

Er: YAG crystal belongs to the cubic crystal system, a promising solid laser material in the mid-infrared band, which can output laser of 3 wavelengths at space temperature: 1.64 μm, 1.78 μm and 2.94 μm, among which 1.64 μm as well as 1.78 μm are in the safe band of human eyes, 2.94 μm remains in the hydroxyl absorption optimal and also can be strongly absorbed by biological tissues, so it has a good application possibility in laser medicine, laser communication, laser distance dimension, and so on.

YAG laser using Nd: YAG Crystal

Nd: YAG is one of the laser crystals with superb thorough performance and also crucial applications. Due to its remarkable fundamental homes, it is extensively utilized in commercial, medical, army as well as clinical study areas.

Nd: YAG crystal Benefits:

  • High optical quality, reduced loss
  • High gain, reduced threshold, high efficiency
  • Ideal for high average power solid state laser
  • High mechanical strength, exceptional thermal conductivity and also thermal shock resistance
  • Appropriate for all laser functioning settings (continual, pulse, Q button, mode locking, frequency doubling, and so on).

YAG laser using Tm: YAG Crystal.

Thulium-doped yttrium aluminum garnet crystal, The perfect thulium crystal rod tool for YAG crystals with a 2 micron wavelength thulium laser resource.The self-quenching device of H4 and also F4 levels of Tm: YAG crystals can generate two-photon excitation in the top degree, possibly providing a reliable way for the laser to get high quantum performance.

Tm: YAG crystals are commonly made use of in LiDAR and other atmospheric detection fields because of their operating wavelength of 2013nm.



  • The fluorescence life time of Tm, 9.2ms@6 %.
  • A Tm: YAG crystal is two times as long as a Tm: YAP crystal.
  • Tm: YAG crystals release a somewhat reduced cross-sectional location than Tm: YAP crystals.
  • The peak absorption band is 785nm.
  • Better for the pump of the semiconductor diode.

YAG laser beam of light top quality is good and also has the advantages of high effectiveness, low cost, stability, safety and security, precision, and also high dependability. A straight port is little in particular applications, utilizing YAG laser equipment and also processing rate, high effectiveness, and also much better economic advantage. The cut surface area is smooth as well as can get a larger depth-to-diameter ratio, as well as the warmth contortion, deep large, can be hard, fragile, as well as soft on numerous products such as processing.

There is no tool wear or substitute. No mechanical becomes very easy to automate. High processing pump performance can be attained under unique problems, approximately around 20%. With the performance renovation, the laser tool’s heat load decreases. Hence, it greatly enhances the top quality of the light beam’s long life, high dependability, tiny dimension, light-weight, as well as ideal for miniaturization applications.

Application of YAG Laser

YAG laser is suitable for laser cutting, welding, and also exploration of steel materials: such as carbon steel, stainless-steel, alloy steel, aluminum and also alloy, copper as well as alloy, titanium and alloy, nickel-molybdenum alloy and also other materials. Commonly made use of in air travel, aerospace, tools, ships, petrochemical, clinical, instrumentation, microelectronics, vehicle and also other markets, it boosts processing high quality as well as working efficiency. Furthermore, the YAG laser can likewise give a precise and fast study method for clinical study.

Compared with other lasers, the YAG laser can work in two means: pulse as well as constant. Its pulse output can be acquired by Q-switching and mod-locking innovation to make sure that its handling range is larger than that of a carbon dioxide laser. The result wavelength of the YAG laser is 1.06 , which is just one order of size smaller than the wavelength of the CO2 laser 10.06 um, so it has high combining efficiency with steel and good processing performance. One of the most essential is that the YAG laser can be paired with fiber. With the help of time as well as power department, a multiplexing system can conveniently transfer a laser beam to multiple terminals or long-distance terminals, which is convenient for laser handling to achieve versatility.

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