Yttrium Orthovanadate Crystals - YVO4

Yttrium OrthovanadateYttrium Orthovanadate is suited for optical polarising components because of its wide transparency range and large birefringence.  It is a substitute for Calcite (CaCO3) and Rutile (TiO2) crystals.

Applications

  • Fiber - Optic Isolators.
  • YVO4 Beam Displacer.
  • Circulators and Glan Polarisers.

Main Properties

Transparency Range High transmittance from 0.4 to 5 |Ìm
Symmetry D4h
Lattice Parameters a = b = 7.12 Å; c = 6.29 Å
Density 4.22 g / cm3
Hygroscopic Susceptibility Non - hygroscopic
Thermal Expansion Coefficient  |Áa = 4.43 x 10-6 / K; |Ác = 11.37 x 10-6 / K
Thermal Expansion Coefficient  //C : 5.23 W / m / K; ¡ ÌC : 5.1 W / m / K
Crystal Class Positive unaxial with no = na = nb , ne = nc
Refractive Indices, Birefringence no = 1.9929, ne = 2.2154, ¡÷n = 0.2225, at 0.63|Ìm
   (¡÷n = ne - no) no = 1.9500, ne = 2.1554, ¡÷n = 0.2054, at 1.30|Ìm
  no = 1.9447, ne = 2.1486, ¡÷n = 0.2039, at 1.55|Ìm
Sellmeier Equation (|Ë in |Ìm) no2 = 3.7783 + 0.0697 / (|Ë2 - 0.0472) - 0.0108|Ë2
  nc2 = 4.5991+ 0.1105 / (|Ë2 - 0.0481) - 0.0123|Ë2
Thermal Optical Coefficient  dna / dT = 8.5 x 10-6 / K
  dnc / dT = 3.0 x 10-6 / K

Availability

  • Sizes of boule crystal: |µ20¡ x 25 mm X 20¡ x 30mm
  • Sizes of crystal devices: available according to the requirement of the user

Specification

PRODUCT SPECIFICATION
1% Niobate : Yttrium Vanadate; a - cut; 3.0 x 3.0 x 1.0 mm S1 : AR 1064 nm (R < 0.1% HT 808nm (R< 5%)
  S2 : AR 1064 nm (R < 0.1%)
KTP cut for type ll; θ= 90°, φ = 23.5°; 3.0 x 3.0 x 4.5 mm S1 : HR 1064 nm (R > 99.8%) HT 532 nm (R < 5%)
  S2 : AR 1064 nm (R < 0.1%) HT 532 nm (R < 0.5%)
Yttrium Vanadate Boule : c - axis; 140 g
Yttrium Vanadate Wafers 50 x 1.5 mm