- Solid State Laser
- Semiconductor Laser
- DPSS laser
- Gas Laser
- Fiber Laser
- Fiber Coupled Laser(MM)
- Fiber Coupled Laser(SM)
- Ultrafast laser
- Femtosecond Laser
- Picosecond Laser
- Pulsed Laser
- Q-switched Laser
- Raman Laser
- Narrow Linewidth Fiber Laser
- Wavelength Tunable Laser
- Laser Diode
- Laser Module
- Pigtailed Laser
- DFB Laser
- DBR Laser
- SLED Laser
- VCSEL Laser
ZGP Crystal
ZGP (Zinc phosphorus germanium) – Laser Crystal – Nonlinear Crystal – Customized Products
Product ID: 6690
$100
ZGP (Zinc phosphorus germanium) – Laser Crystal – Nonlinear Crystal – Customized Products
Zinc phosphorus germanium crystal (ZnGeP2, ZGP for short) is a positive uniaxial crystal. It is one of the most commonly used nonlinear crystals for optical parametric oscillator (OPO) technology.
Note:
$100 is a deposit, not the final price of the product. Please contact us for price if needed.
ZGP Crystal Has the Following Characteristics:
A large effective nonlinear coefficient (deff=75pm/V, which is several times or tens of times that of other commonly used nonlinear crystals)
High damage threshold (>30GW/cm2)
Wide light transmission band (0.74~12.4μm)
Small absorption coefficient (2~3μm absorption coefficient is less than 0.04 cm-1)
High thermal conductivity (360mW/cm·K)
Stable performance and mature production process
It has many advantages, such as the ability to grow large-sized crystals. It is an ideal crystal for mid-infrared OPO in the 3-5 m bands.
Features of ZGP Crystal:
Large nonlinear coefficient
The transmission region is 74 μm to 12μm
The relative damage threshold is high
High thermal conductivity
Wide transparent area
Phase matching over a wide spectral range
Physical and Chemical Properties
| Attribute | Numerical |
| Chemical Formula | ZnGeP2 |
| Crystal Structure | Tetragonal Crystal System,42m |
| Lattice Constant | a=b=5.467Å, c=12.736Å |
| Mass Density | 4.16 g/cm3 |
| Mohs Hardness | 5.5 |
| Melting Point | About 1040°C |
| Thermal Conductivity | 180 W/m/K |
| Coefficient of Thermal Expansion | β‖, 5×10-6/K; β⊥, 7.8×10-6/K |
| Birefringence | Single Shaft |
Nonlinear Optical Properties
| Attribute | Numerical |
| SHG Phase Matching Range | 3177 ∼10357nm (Type I) |
| NLO Coefficient | d36=75 ± 8 pm/V |
| Type Ⅰ deeo=d36 sin2θcos2φ | |
| Type Ⅱ doeo =deoo=d36 sinθsin2φ | |
| Damage Threshold | |
| At 2.79 um | 30 GW/cm2 (150 ps) |
| At 10.6 um | 1 GW/cm2 (2 ns) |
Linear Optical Properties
| Attribute | Numerical |
| Transparent Range | 0.74 – 12 um |
| Absorption Coefficient | α<0.05cm-1 @2050-2100 nm |
| Refractive Index | |
| @ 2.05μm | no= 3.1478, ne= 3.1891 |
| @ 2.79μm | no= 3.1333, ne= 3.1744 |
| @ 5.30μm | no= 3.1136, ne= 3.1547 |
| @ 10.6μm | no= 3.0729, ne= 3.1143 |
Spectrum
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