Nanjing Crylink Photonics Co.,Ltd
Growing crystal, Lingling Value.
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Description
V:YAG (Yttrium-Aluminum Garnet doped with three-valence vanadium V3+) is a relatively new crystal material of saturable absorbers and passive Q-switch in the spectral range from 1064 to 1440 nm, primarily because of extremely high ground-state absorption cross section and negligible excited-state absorption around the absorption peak at about 1300 nm. This material, revealing excellent optical, mechanical, and thermal properties, can typically be grown by the Czochralski method. V:YAG crystals have been applied for a variety of active media such as Nd:YAG, Nd:YAP, Nd:KGW, Nd:YVO4 to achieve compact and good-performance passive Q-switching lasers.
Features
Extremely high ground state absorption
Negligible excited state absorption
High contrast of Q-switch
Good optical, mechanical, and thermal properties
UV resistant and high High damage threshold(>500MW/cm2)
Applications
Q-switching and model-locking for Nd:YAG lasers
Q-switching and model-locking for Nd:YAP lasers
Q-switching and model-locking for Nd:KGW lasers
Q-switching and model-locking for Nd:YVO4 lasers
Parameters
|
Property |
Value |
|
Chemical formula |
V3+:Y3Al5O12 |
|
Crystal structure |
cubic - la3d |
|
Orientation |
<100> <+/-0.5° |
|
Transmittance |
30%-97% |
|
Opticaldensity |
0.1-0.8 |
Specifications
|
Property |
Value |
|
Atomic transition structure |
Two-levelsystem |
|
Recovery time |
5~2210-22s |
|
Concentrations |
(0.05~0.35)wt% |
|
Absorptioncross-section |
7.3×10-18cm2 (@ 1340 nm) |
|
Emissionbandwidth |
1000-1450 nm |
|
Centralabsorption wavelength |
1300nm |
|
Coatings |
Standardcoating is AR with R < 0.2% (@1340 nm) |
Polishing Specification
|
Property |
Value |
|
OrientationTolerence |
<0.5° |
|
Thickness/DiameterTolerance |
±0.05mm |
|
SurfaceFlatness |
</8@632nm |
|
WavefrontDistortion |
</4@632nm |
|
SurfaceQuality |
10/5 |
|
Parallel |
30 |
|
Perpendicular |
15 |
|
ClearAperture |
>90% |
|
Chamfer |
<0.2×45° |
Standard products
|
Initial transmission @1064nm |
Dimensionsmm |
Coatings |
SurfaceFlatness |
SurfaceQuality (scratch/dig) |
|
T0=30% |
dia 5 |
AR≤0.2% @1064nm |
</8@632 nm |
10/5 |
|
3x3 |
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|
5x5 |
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|
T0=40% |
dia 5 |
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|
3x3 |
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|
5x5 |
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|
T0=50% |
dia 5 |