Nonlinear ZGP Crystal

ZGP crystals possessing large nonlinear coefficients (d36=75pm/V), wide infrared transparency range(0.75-12μm), high thermal conductivity(0.35W/(cm·K)), high laser damage threshold (2-5J/cm2)and well machining property, ZnGeP2 crystal was called the king of infrared nonlinear optical crystals and is still the best frequency conversion material for high power, tunable infrared laser generation. We can offer high optical quality and large diameter ZGP crystals with extremely low absorption coefficient α < 0.05 cm-1(at pump wavelengths 2.0-2.1 µm), which can be used to generate mid-infrared tunable laser with high efficiency through OPO or OPA processes.


  • Chemical: ZnGeP2
  • Density: 4.162  g/cm3
  • Mohs Hardness: 5.5
  • Optical Class: Positive uniaxial
  • Userful Transmission Range: 2.0 um - 10.0 um
  • Thermal Conductivity   @ T= 293 K: 35 W/m∙K (⊥c)
    36 W/m∙K ( ∥ c)
  • Thermal Expansion @ T = 293 K to 573 K: 17.5 x 106 K-1 (⊥c)
    15.9 x 106 K-1 ( ∥ c)
  • Product Detail

    Technical parameters

    Test report

    Video

    Stock list

    To be able to ideal meet up with client’s needs, all of our operations are strictly performed in line with our motto “High High-quality, Competitive Cost, Fast Service” for Nonlinear ZGP Crystal, We have been keeping durable enterprise relationships with extra than 200 wholesalers within the USA, the UK, Germany and Canada. Should you be fascinated in any of our merchandise, you should feel free to call us.
    To be able to ideal meet up with client’s needs, all of our operations are strictly performed in line with our motto “High High-quality, Competitive Cost, Fast Service” for Zgp Crystal, Zngep2 Crystal, Our expert engineering team will generally be prepared to serve you for consultation and feedback. We’re able to also give you with free of charge samples to meet your requirements. Best efforts will likely be produced to provide you the best service and merchandise. When you are keen on our business and items, make sure you speak to us by sending us emails or call us quickly. In an effort to know our merchandise and company extra, you may come to our factory to view it. We’ll generally welcome guests from all over the world to our business to create business relations with us. Be sure to feel cost-free to speak to us for small business and we believe we are going to share the best trading experience with all our merchants.

    Zinc Germanium Phosphide (ZGP) crystals possessing large nonlinear coefficients (d36=75pm/V). Our ZGP has wide infrared transparency range(0.75-12μm), useful transmission from 1.7um. ZGP also shows high thermal conductivity(0.35W/(cm·K)), high laser damage threshold (2-5J/cm2)and well machining property.

    ZnGeP2 (ZGP) crystal was called the king of infrared nonlinear optical crystals and it is still the best frequency conversion material for high power, tunable infrared laser generation. DIEN TECH offer high optical quality and large diameter ZGP crystals with extremely low absorption coefficient α < 0.03 cm-1(at pump wavelengths 2.0-2.1 µm). These properties enables ZGP crystal to be used to generate mid-infrared tunable laser with high efficiency through OPO or OPA processes.

    DIEN TECH provides two types of ZnGeP2 crystal, C-ZGP and YS-ZGP.  YS-ZGP shows lower absorption at 2090nm than C-ZGP. C-ZGP absoprtion coefficient at 2090nm <0.05cm-1 while YS-ZGP absoprtion coefficient at 2090nm <0.02cm-1 . C-ZGP grew by vertical meathod while YS-ZGP grew by horizontal meathod. Also, YS-ZGP shows better homogeneity and output efficiency as well.

    Applications of ZGP:

    • Second, third, and fourth harmonic generation of CO2-laser.

    • Optical parametric generation with pumping at a wavelength of 2.0 µm.

    • Second harmonic generation of CO-laser.

    YS-ZGP are typical material for THz range from 40.0 µm to 1000 µm, pumped by 1um.

    • Generation of combined frequencies of CO2- and CO-lasers radiation and other lasers are working in the crystal transparency region.

     

    Custom orientations of our ZGP crystals are available on request.

    ZGP crystals possessing large nonlinear coefficients (d36=75pm/V), wide infrared transparency range(0.75-12μm), high thermal conductivity(0.35W/(cm·K)), high laser damage threshold (2-5J/cm2)and well machining property, ZnGeP2 crystal was called the king of infrared nonlinear optical crystals and is still the best frequency conversion material for high power, tunable infrared laser generation. We can offer high optical quality and large diameter ZGP crystals with extremely low absorption coefficient α < 0.05 cm-1(at pump wavelengths 2.0-2.1 µm), which can be used to generate mid-infrared tunable laser with high efficiency through OPO or OPA processes.

    Basic Properties

    Chemical ZnGeP2
    Crystal Symmetry and Class Tetragonal, -42m
    Lattice Parameters a = 5.467 Å
    c = 12.736 Å
    Density 4.162 g/cm3
    Mohs Hardness 5.5
    Optical Class Positive uniaxial
    Userful Transmission Range 2.0 um – 10.0 um
    Thermal Conductivity @ T= 293 K 35 W/m∙K (⊥c) 36 W/m∙K ( ∥ c)
    Thermal Expansion @ T = 293 K to 573 K 17.5 x 106 K-1 (⊥c) 15.9 x 106 K-1 ( ∥ c)
    Technical Parameters
    Surface flatness PV<ʎ/8@632.8nm
    Surface quality S-D 20-10
    Wedge/Parallelism error <30 arc sec
    Perpendicularity <5 arc min
    Transparency range 0.75 – 12.0
    Non-linear coefficient d36= 68.9 (at 10.6 um),d36= 75.0 (at 9.6 um)

    Model

    Product

    Size Orientation Surface

    Mount

    Quantity

    DE0038

    C-ZGP

    6*6*24mm θ=55°; φ=0° AR/AR@2090nm(R<0.25%)&3-5um(R<1%

    Unmounted

    1

    DE0059-3

    YS-ZGP

    6*6*25mm θ=50.5°; φ=0° AR/AR@2.1um+2.5-2.9um+8-8.5um

    Unmounted

    1

    DE0074-1

    YS-ZGP

    6*6*30mm θ=54.5°; φ=0° AR/AR@2.1um+3-5um

    Unmounted

    4

    DE0077-0

    YS-ZGP

    6*6*20mm θ=54.7°; φ=0° AR/AR@2090nm(R<0.25%)&3-5um(R<1%

    Unmounted

    4

    DE0077-3

    YS-ZGP

    6*6*20mm θ=50.4°; φ=0 Both sides polished

    Unmounted

    1

    DE0077-4

    YS-ZGP

    6*6*20mm θ=48.4°; φ=0° Both sides polished

    Unmounted

    1

    DE0089

    YS-ZGP

    6*6*1.5mm θ=47.8°; φ=0° AR/AR@2.5um&5um

    Unmounted

    2

    DE0059-8

    YS-ZGP

    6*6*25mm θ=57.5°; φ=0° AR/AR@2.1um+3-5um

    Unmounted

    1

    DE0127

    YS-ZGP

    6*8*15mm θ=54°; φ=0° AR/AR@2090nm(R<0.25%)&3-5um(R<1%

    Unmounted

    1

    DE0128

    YS-ZGP

    12*12*15mm θ=54.7°; φ=0° Both sides polished

    Unmounted

    1

    DE0129

    YS-ZGP

    6*8*20mm θ=54°; φ=0° AR/AR@2090nm(R<0.25%)&3-5um(R<1%

    Unmounted

    1

    DE0259

    YS-ZGP

    5*5*0.25mm θ=51°; φ=0° AR/AR@2.1+2.7+8.0μm

    Φ25.4mm

    1

    DE0260

    YS-ZGP

    5*5*1mm θ=51°; φ=0° AR/AR@2.1+2.7+8.0μm

    Φ25.4mm

    2

    DE0364

    YS-ZGP

    6*6*40mm θ=54.7°; φ=0° AR/AR@2090nm(R<0.25%)&3-5um(R<1%

    Unmounted

    1

    DE0468-2

    YS-ZGP

    15*15*0.5mm θ=48.6°; φ=0° AR/AR@1.8-3.5um+5~11um

    Unmounted

    2

    DE0468-3

    YS-ZGP

    15*15*1mm θ=48.6°; φ=0° AR/AR@1.8-3.5um+5~11um

    Φ25.4mm

    2

    DE0469-2

    YS-ZGP

    5*6*1mm θ=48.2°; φ=0° AR/AR@1.8-3.5um+5~11um

    Unmounted

    1

    DE0469-3

    YS-ZGP

    5*6*2mm θ=48.2°; φ=0° AR/AR@1.8-3.5um+5~11um

    Unmounted

    1

    DE0494

    YS-ZGP

    8*8*4mm θ=57.5°; φ=0° AR/AR@1.7-3um+5-13um

    Unmounted

    6

    DE0753

    YS-ZGP

    5.8*6*20mm θ=54.7°φ=0° Both sides polished

    Unmounted

    1