Neodymium doped yttrium aluminium garnet (Nd:YAG)

Nd: YAG single crystal is the most important laser crystal, widely used in industrial, medical, and scientific fields. Its main advantages are: low output threshold, high gain, high efficiency, and low 1064nm loss; At the same time, it also has the characteristics of high optical quality, good thermal conductivity, good thermal shock resistance, and high mechanical strength, making Nd: YAG the most suitable commercial laser crystal for continuous, pulsed, and mode-locked lasers. Nd: YAG crystals are also widely used in various solid-state laser systems: frequency doubling CW, high-energy Q-switching, cavity emptying, etc. Neodymium doped Yttrium aluminium garnet (Nd: YAG) is a widely used solid-state laser material. Nd: YAG crystal belongs to Cubic crystal system, which is a new crystal structure formed by replacing a part of yttrium (Y) ions in Yttrium aluminium garnet (YAG) crystal with neodymium (Nd) ions. Nd ions are the main source of laser emission from this crystal. Nd: YAG crystals have many excellent physical and optical properties. Firstly, Nd: YAG crystals have good thermal conductivity and mechanical strength, enabling them to withstand high-power laser output in lasers. Secondly, Nd: YAG crystals exhibit good chemical stability in most common solvents. In addition, the emission wavelength of Nd: YAG crystals is mainly located at 1064 nm, which is in the near-infrared region and can effectively penetrate the atmosphere and certain other substances. Due to its excellent performance, Nd: YAG crystals have been widely used in many fields. The most common ones are in lasers, such as solid-state lasers, Q-switching lasers, frequency modulated lasers, etc. These lasers have important applications in many fields such as medical, industrial, military, and scientific research. In addition, Nd: YAG crystals are also used in fields such as fiber optic communication and LiDAR.

Dihedral Technology(DHD) Co., Ltd. manufacture and processing/provide multiple specifications and high quality Nd:YAG crystal,targets,materials.

Applications

Nd: YAG single crystal is the most important laser crystal, widely used in industrial, medical, and scientific fields. It is the most suitable and commercialized laser crystal for continuous, pulsed, and mode-locked lasers. It is also widely used in various solid-state laser systems, such as frequency doubling continuous wave, high-energy Q-switching, cavity inversion,
Nd: YAG single crystal is the most important laser crystal, widely used in industrial, medical, and scientific fields. It is the most suitable and commercialized laser crystal for continuous, pulsed, and mode-locked lasers. It is also widely used in various solid-state laser systems, such as frequency doubling continuous wave, high-energy Q-switching, cavity inversion, etc.

Features

Low output threshold, high gain, high efficiency, and low 1064nm loss.
High optical quality.
Good thermal conductivity.
Thermal shock resistance.
High mechanical strength

  • Dimensional tolerance

    Diameter: < + / - 0.025 mm, length: < + / - 0.5 mm

    Flatness

    λ/ 8 @633nm

    Surface finish

    10/5

    Parallelism of luminous surface

    Better than 20 arc sec

    Verticality

    Better than 5 arc min

    Orientation

    < 111 > crystal direction, tolerance: < ± 0.5 °

    Chamfering

    < 0.1 mm @ 45deg.

    Coating

    AR coating, HR Coating

    Residual reflections

    R<0.2%@1064

    HR:R>99.8%@1064,R<5%@808nm

    Luminous aperture

    > 95% central area

    Wavefront distortion

    < 7mm diameter : < λ/ 8 per inch @ 633nm

    7mm diameter : < λ/ 10per inch @ 633nm