V:YAG Crystal | Laser Crystal | Stanford Advanced Materials

Catalog No.	CY3707
Material	V:YAG Crystal
Optical Density	0.1-0.8
Appearance	Translucent crystalline solid

Catalog No.

CY3707

Material

V:YAG Crystal

Optical Density

0.1-0.8

Appearance

Translucent crystalline solid

V:YAG Crystal Description

V:YAG Crystal is a new material of saturable wavelength absorber and passive Q-switch, with a wavelength range of 1.06μm-1.44μm. It is especially suitable for neodymium laser of 1.3μm. It is an excellent saturable absorber material in the 1300nm band. The V element has four chemical values: +2, +3, +4, and +5. +3 valence V3+ ions are commonly used Q-switching and saturated absorption ions, which are incorporated into YAG-based crystals to achieve passive Q-switching and mode-locking of the laser. Among passively Q-switched solid-state lasers, the laser has the advantages of good stability, long life, miniaturization, simplicity and practicality.

V:YAG Crystal Specifications

Material Properties

Attribute	Value
Chemical formula	V³⁺:Y₃Al₅O₁₂
The crystal structure	cube– la3d
orientation	<100> <+/-0.5°
transmittance rate	30%-97%
Optical density	0.1-0.8
Atomic transition structure	Two-level system
Recovery time	5~22 ×10^-22 s
Concentration	(0.05~0.35) wt%
Ground state absorption cross section	7.2 x 10^-18 cm²
Excited state absorption cross section	7.4 x 10^-19cm²
Launch the bandwidth	1000-1450 nm
Central absorption wavelength	1300 nm
coating	Standard coating is AR with R
coating	< 0.2%(@1340 nm)
Absorption coefficient	1.0cm^-1 – 7.0cm^-1
Damage threshold	>500MW/cm²

Chemical polishing

attribute	Value
The direction of the tolerance	< 0.5°
Thickness/diameter tolerance	±0.05 mm
Surface flatness	<λ/8@632 nm
Wave-front distortion	<λ/4@632 nm
The surface quality	5-Oct
Parallel	30”
Vertical	15ˊ
Clear aperture	>90%
Chamfering	<0.2×45°
HR coating	<= 0.2% (@ 1340nm)