Ho:YLF (Holmium doped yttrium lithium fluoride) – Laser Crystal – Gain Medium – Customized products

Product ID: 6571


Ho:YLF (Holmium doped yttrium lithium fluoride) – Laser Crystal – Gain Medium – Customized products

Ho: YLF crystal product, also known as holmium doped yttrium fluoride lithium crystal. It is a laser product with excellent comprehensive performance. It is widely used in industry, medical treatment, and scientific research. The product has the characteristics of a low nonlinear refractive index, low thermal, constant optical value, and long service life of 5I7 energy level. It can be used in remote sensing and pollutant monitoring solid laser products.

$100 is a deposit, not the final price of the product. Please contact us for price if needed.

High emission cross-section
Long upper laser level lifetime
Naturally birefringent material
Efficient Q switch operation (up to 37 mJ per pulse)
The low value of dn/dT leads to a weak thermal lensing
The continuous wave output of the YLF laser can be up to 21W


Orientation a cut
Clear Aperture >90%
Surface Tolerance + 0/-0.1mm
Length Tolerance ±0.1mm
Parallelism Error <10arcsec
Perpendicularity Error <10arcmin
Chamfer <0.1mm @45˚
Surface Finish 10-5 S-D
Flatness <λ/10@632.8 nm
Double Coated R<0.35%@1900-2100nm
Damage Threshold >10J/cm2@2060nm, 10ns

Spectral and Thermomechanical Properties

Absorption peak wavelength 1940nm
Absorption Cross-section at Peak 1.2×10-20 cm2
Absorption Bandwidth at Peak Wavelength -18nm
Laser Wavelength 2060nm
Lifetime of

5I7 Energy Level

Emission ross-section 1.8×10-20 cm2
Refractive Index @1064 nm n0=1.448,ne=1.470
Crystal tructure Tetragonal
Density 3.95g/cm3
Mohs Hardness 5
Thermal Conductivity  6 Wm-1K-1
dn/dT -4.6×10-6 (||c) K-1,
-6.6×10-6 (||a) K-1
Thermal Expansion Coefficient 10.1×10-6 (|c)K-1,
14.3×10-6 (||a)K-1
Typical Doping Level 0.5-1%



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