SPECIFICATIONS

Concentration

0.01at~3.0at%

Orientation

<100> or <001>±5°

Dimension

Diameter:3~8mm,Length:10~120mm(Customized  available)

Dimension Tolerance

Φ:+0/-0.04mm,L:+0.5/-0mm

Perpendicularity

≤5′

Parallelism

≤10"

Chamfer

0.15±0.05mm

Clear Aperture

＞95%

Surface Quality

10/5(MIL-PRF-13830B)  

Barrel

Fine Ground, Polishing, Grooving

Flatness

≤λ/10@632.8nm

Wavefront Distortion

≤λ/8 per inch@632.8nm

Coating

AR coating:R≤0.15%@1047,R≤0.15%@1053nm

Damage Threshold

≥750MW/cm²

OPTICAL PROPERTIES

Laser Transition

⁴F_3/2→⁴I_11/2

Wavelength

1047nm,1053nm

Emission Cross Section

E//C:1.8×10^-19cm²@1047nm

E⊥C:1.2×10^-19cm²@1053nm

Fluorescence Lifetime

485μs@1.0at%Nd

PHYSICAL AND CHEMICAL PROPERTIES

Crystal Structure

Tetragonal

Melting Point

825℃

Density

3.95g/cm³

Mohs Hardness

4~5

Young's Modulus

7.5×1011dynes cm^-2

Tensile Strength

3.3×108dynes cm^-2

Thermal Expansion Coefficients

<100>:13×10^-6/K

<001>:8×10^-6/K

Thermal Conductivity

0.06W/cm/K

Refractive Index

n₀=1.443  n_e=1.464@633nm

n₀=1.448  n_e=1.470@1064nm