Active Member
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[China]
Address: No.200, Zgaoxian Road, Jiading Zone, Shanghai, China
Contact name:sales
Nanjing Crylink Photonics Co.,Ltd |
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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 | ||||
5x5 | ||||
T0=40% | dia 5 | |||
3x3 | ||||
5x5 | ||||
T0=50% | dia 5 |
