Tm:YAP

Tm:YAP

CRYLINK’s Tm: YAP crystal products, also known as Thulium-doped YAlO3 crystal. It is a kind of laser crystal product with excellent comprehensive performance. It is widely used in laser medical treatment, military, and atmospheric remote sensing. The product has high-efficiency laser output, good physical and chemical properties, and linear polarization laser emission characteristics. It can be used in ladar, laser medical equipment products.

  • High-efficiency laser output
  • Straight polarization laser emission
  • Good physical and chemical performance
  • The highest local absorption is in the infrared region

Standard

Doping ConcentrationTm: 0.2~15at%
Orientation[010] or [100](Pnma)within 5°
Rod SizeDiameter 2~10mm, length 2~100mm
Wavefront Distortion≤0.125λ/25mm@632.8nm
Extinction Ratio≥25dB
Dimensional ToleranceDiamter:+0.00/-0.04, length: ±0.5mm
Parallelism≤10″
Perpendicularity≤5′
Flatnessλ/8@632.8nm
Surface Finish10/5 (MIL-O-13830A)
Chamfer0.15±0.05mm
AR Coating Reflectivity≤0.25%

Physical and Chemical Properties

Crystal StructureOrthogonal – Pbnm
Lattice Constanta = 0.5138 nm,b = 0.5274 nm, c = 0.7308 nm
Melting Point1870 °C
Density5.35 g/cm3
Mohs Hardness8.5
Specific Heat Capacity400 J/(kg ·K)
Thermal Conductivity11W/(m·K)
Refractive Index@ 632 nm

na=1.91,nb=1.92,nc=1.94

Optical and Spectral Properties

Optical Transition3F43H6
Absorption Cross Section3.7~8.5×10-21cm2
Fluorescence Lifetime4.4~7.7ms
Emission Cross Section5~6×10-21cm2
Emission Wavelength1.98mm@ a-axis,1.94mm@ b-axis
Diode Pump Wavelength794.8nm@ a-axis,793.5nm@ b-axis

Spectrum

Tm:YAP laser crystal absorption curve crylink
Tm: YAP Absorption Curve

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