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    Tm:YAG
    Product Information :

     

    Tm:YAG newly gets recognition for the development of AlGaAs laser diode. It is promising for wide application

    in medical, military and meteorology fields.

    Advantages of Tm:YAG Crystal
    Eye-safe wavelength of 2μm range
    Effective cross relaxing of Tm ions
    Relatively high efficiency with LD pumping

    Specifications

    Dopant concentration

    Tm: 0.5~5at%

    Orientation

    [111] within 5°

    Wavefront distortion

    ≤ 0.125λ/inch @632.8nm

    Extinction ratio

    ≥ 25dB @632.8nm

    Rod sizes:

    Diameter 2~10mm, Length 3~150mm
    Upon request of customer

    Dimensional tolerances

    Diameter: +0.00/-0.05mm, Length: ± 0.5mm

    Barrel finish

    Ground or polished

    Parallelism

    ≤ 10"

    Perpendicularity

    ≤ 5′

    Flatness

    ≤ λ/4@632.8nm

    Surface quality

    10-5 (MIL-O-13830A)

    Chamfer

    0.15±0.05mm

    AR coating reflectivity

    ≤0.25% @2μm

     

    Optical and Spectral Properties

    Laser transition

    3F4→3H6

    Laser wavelength

    1.87~2.16μm

    Fluorescence lifetime

    11ms

    Diode pump band

    785nm, 680nm

     

    Physical and Chemical Properties

    Crystal Structure

    Cubic

    Lattice Parameters

    12.01 ?

    Melting Point

    1970℃

    Moh Hardness

    8.5

    Density

    4.56±0.04g/cm3

    Specific Heat (0-20)

    0.59J/g.cm3

    Modulus of Elasticity

    310GPa

    Young's Modulus

    3.17×104Kg/mm2

    Poisson Ratio

    0.3(est.)

    Tensile Strength

    0.13~0.26GPa

    Thermal Expansion Coefficient

    [100]Direction:8.2×10-6/K(0~250℃)

    [110]Direction:7.7×10-6/K(0~250℃)

    [111]Direction:7.8×10-6/K(0~250℃)

    Thermal Conductivity

    14W/m/K(@20℃)

    10.5W/m/K(@100℃)

    Thermal Optical Coefficient (dn/dT)

    7.3×10-6/K

    Thermal Shock Resistance

    790W/m

    Solubility

    Water: Insoluble;
    Common Acids: Slightly





     
     
     
     
     


       
       
     
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