Nd:YVO4

Nd:YVO4

Nd:YVO4 crystals are usually used in lasers to generate the same wavelength radiation as Nd:YAG ( 1064 nm ). Other important emission wavelengths of this crystal are 914 and 1342 nm. These types of lasers usually are pumped with diodes, however they can be lamp pumped too. Compared with Nd:YAG, Nd:YVO4 has a much higher pump absorption coefficient with much broader wavelength range for pumping. Nd:YVO4 also has a shorter upper state lifetime which reduce effects of thermal losses.

  • Optola offers various doping concentration from 0.1% to 3%
  • Various size bulk and finished high quality Nd:YVO4 crystals available.
  • Various coating cabalities
  • High damage treshold

Transmitting wavefront distortion

≤λ/4 @ 633nm

Clear aperture

>90% central area

Chamfer

≤0.2mm@45degree

Chip

≤0.1mm

Flatness

λ/8 @ 633 nm

Scratch/Dig

10-5  S-D

Parallelism

>10arc seconds

Perpendicularity

≤5 arc minutes

Angle tolerance

≤0.5°

Doping concentration tolerance:

±0.05%(atm%<1%), ±0.1%(atm%≥1%)

Property

Value

chemical formula

Nd3+:YVO4

crystal structure

tetragonal

mass density

4.22 g/cm3

Moh hardness

5–6

Young’s modulus

133 GPa

tensile strength

53 MPa

melting point

1810 °C

thermal conductivity

≈ 5 W / (m K) 
(values around 9–12 are also found in the literature)

thermal expansion coefficient

11 × 10−6 K−1 (c direction), 4.4 × 10−6 K−1 (a direction)

transparency range

0.3–2.5 μm

birefringence

positive uniaxial

refractive index at 1064 nm

2.17 for c polarization (extraordinary), 
1.96 ordinary index

temperature dependence of refractive index

3 × 10−6 K−1 in c direction, 8.5 × 10−6 K−1 in the a direction

Nd density for 1% at. doping

1.24 × 1020 cm−3

fluorescence lifetime

90 μs

absorption cross section at 808 nm

60 × 10−20 cm2 (c polarization)

emission cross section at 1064 nm

114 × 10−20 cm2 (c polarization)

gain bandwidth

1 nm

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