V:YAG Crystal Description
V:YAG Crystal is a cutting-edge material known for its exceptional saturable absorption and passive Q-switching capabilities within the wavelength range of 1.06μm to 1.44μm. It is particularly suitable for neodymium lasers operating at 1.3μm, making it an excellent choice for the 1300nm band.
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 10-19 cm2
|
|
Launch the bandwidth
|
1000-1450 nm
|
|
Central absorption wavelength
|
1300 nm
|
|
coating
|
Standard coating is AR with R
|
|
< 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)
|
Absorption and emission spectra
Emission spectra
V:YAG Crystal Applications
- Passive Q-Switching: Achieves efficient passive Q-switching and mode-locking in lasers.
- Neodymium Lasers: Ideal for lasers operating in the 1.3μm range.
V:YAG Crystal Packaging
Our V:YAG Crystal is carefully handled during storage and transportation to preserve the quality of our product in its original condition.
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