YVO4 crystal

Laserstec Inc >>

Description

Undoped YVO 4 crystal is widely used in many beam displace online_orderings because of its large birefringence. It also has good physical and favorable mechnical properties than thers birefringent crystals, which make YVO 4 well suited for compact fiber optical components, such as isolators, circulators and interleaver etc.

Capabileties:

Diameter : max. 25mm
Length: max. 30mm
Surface Quality: better than 2 0/10 scratch/dig Per MIL-0-13830A
Beam Deviation: <3 arc min
Optical Axis Orientation: +/-0.2°
Flatness: < l /4 @633nm
Transimission Wavfront Distortion: <l /2 @633nm
Coating: upon customer's

Physical and Optical Properties

Transparency Range: 400~5000nm
Crystal Symmetry: Zircon tetragonal, space group D4h
Crystal Cell: A=b=7.12 °, c=6.29°
Density: 4.22 g/cm²
Hygroscopic Susceptibility: Non-hygroscopic
Mohs Hardness: 5 glass like
Thermal Optical Coefficient: Dn a /dT=8.5x10 -6 /K; dn c /dT=3.0x10 -6 /K
Thermal Conductivity Coefficient: C: 5.23 w/m/k; C:5.10w/m/k
Crystal Class: Positive uniaxial with no=na=nb, ne=nc
Refractive Indices, Birefringence: ( D n=ne-no) and Walk-Off Angle at 45 deg(?)
- No=1.9929, ne=2.2154, D n=0.2225, ?=6.04°, at 630nm
- No=1.9500, ne=2.1554, D n=0.2054, ?=5.72°, at 1300nm
- No=1.9447, ne=2.1486, D n=0.2039, ?=5.69°, at 1550nm
Sellmeier Equation ( l in m m)
- n o 2 =3.77834+0.069736/(l2 -0.04724)-0.0108133l2
- n e 2 =4.5905+0.110534/(l2 -0.04813)-0.0122676 l2

Product line:	Fiber Optics and Accessories
Subcategories:	Dispersion Compensators

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