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Arminas Butkus +370 5 219 4884
V:YAG crystals
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V:YAG crystals

Main features

 

  • High ground states absorption
  • Insignificant excited state absorption
  • High contrast of the Q-switch
  • Good optical, mechanical and thermal properties
  • UV-resistant and high threshold for high damage (> 500 MW / cm2)

 

Application examples

 

  • Passively Q-switched lasers for laser rangefinders, LIDAR and LIBS systems
Request custom
  • Description
  • Properties
  • Specifications

V:YAG is a relatively new crystalline material of saturable absorbers and a passive Q-switch in the spectral range from 1064 to 1440 nm, primarily because of an extremely high ground state. The absorption cross section and insignificant absorption of the excited state around the absorption peak at about 1300 nm. This material shows excellent optical, mechanical and thermal properties. It can be grown by the Czochralski method. Crystals V:YAG have been used for various active media such as Nd:YAG, Nd:YAP, Nd:KGW, Nd:YVO4 to achieve compact and good characteristics of passive Q-switched lasers.

Material related spectroscopic and thermo-mechanical properties
Material σgsa, cm2@1,34 μm σesa, cm2@1,34 μm τsa, μs Laser crystal λlas, μm σgsaem
V3+:Y3Al5O12 72×10-19 7,4×10-19 0,005-0,037 Pr:YAP 0,747 10
Ti:Al2O3 0,78 25
Cr:LiCAF 0,78 80
Nd:YLF 1,05 15
Nd:YAG 1,06 8
Nd:YVO4 1,06 1,5
Yb:KYW 1,035 70
Nd:GGG - -
Nd:YAP 1,34 24
Nd:GdVO4 1,34 30
Er:glass 1,54 45

 

Crystal structure Cubic
Density 4,56 g/cm3
Thermal expansion coefficient 6.14×10-6 K-1
Thermal conductivity 11,2 Wm-1K-1
Mohs hardness 8,2
Refractive index 1,[email protected] nm
V:YAG crystals
Available initial transmission 30-98% @1340 nm
Initial transmission tolerance ±1% (for values larger than 80%)
Clear aperture >90%
Face dimensions tolerance +0/-0,1 mm
Parallelism error <20 arcsec
Perpendicularity error <10 arcmin
Protective chamfers <0,1 mm at 45˚
AR coatings R<0,2% @1310-1360 nm
Surface quality 10-5 S-D
Surface flatness <λ/[email protected],8 nm
Wavefront distortion <λ/[email protected],8 
Laser induced damage threshold >10 J/cm2@1064 nm, 10 ns
Mount Contact us
Order your item
Face dimensions Initial transmission SKU price quantity
3x3 mm
30%
7312
540 €
3x3 mm
40%
7313
540 €
3x3 mm
50%
7314
540 €
3x3 mm
60%
7315
540 €
3x3 mm
70%
7316
540 €
3x3 mm
80%
7317
540 €
3x3 mm
85%
7318
540 €
3x3 mm
90%
7319
540 €
3x3 mm
95%
7320
540 €
⌀5 mm
30%
7321
540 €
⌀5 mm
40%
7322
540 €
⌀5 mm
50%
7323
540 €
⌀5 mm
60%
7324
540 €
⌀5 mm
70%
7325
540 €
⌀5 mm
80%
7326
540 €
⌀5 mm
85%
7327
540 €
⌀5 mm
90%
7328
540 €
⌀5 mm
95%
7329
540 €