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Potassium Gadolinium Tungstate (KGd(WO₄)₂) crystal is an excellent stimulated Raman laser crystal with characteristics such as a wide light transmission range, good thermal conductivity, high damage threshold, large Raman shift coefficient, and high Raman gain. It can maintain high conversion efficiency and beam quality during the Raman frequency conversion process. The KGW crystal can withstand high pump power and is suitable for pump lights of various wavelengths, making it widely used in Raman lasers, laser frequency conversion, medical imaging, photodynamic therapy, environmental monitoring, spectroscopy research, material processing, and other fields.
Descriptions:
Potassium Gadolinium Tungstate (KGd(WO₄)₂) crystal is an excellent stimulated Raman laser crystal with characteristics such as a wide light transmission range, good thermal conductivity, high damage threshold, large Raman shift coefficient, and high Raman gain. It can maintain high conversion efficiency and beam quality during the Raman frequency conversion process. The KGW crystal can withstand high pump power and is suitable for pump lights of various wavelengths, making it widely used in Raman lasers, laser frequency conversion, medical imaging, photodynamic therapy, environmental monitoring, spectroscopy research, material processing, and other fields.
HGO offers KGW specifications:
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Orientation: |
<010> |
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Dimension Tolerances： |
diameter:±0.1 mm , Length: ±0.1 mm |
|
Clear Aperture: |
> 90% |
|
Surface Quality: |
10/5 Scratch/Dig MIL-O-1380A |
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Surface Flatness: |
< λ/10 @ 632.8 nm |
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Parallelism: |
< 20″ |
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Perpendicularity: |
< 15′ |
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Coating |
AR coating upon customer’s request |
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Quality Warranty Period |
One year under proper use |
Main applications:
1) Laser frequency conversion;
2) Optical Parametric Oscillation (OPO) — enabling tunable laser output in the near-infrared to mid-infrared spectral range;
3) Core gain medium for Raman lasers;
4) Synergistic application of nonlinear optical modulation and Raman scattering in high average power laser systems;
5) Integrated components for frequency extension and Raman function in micro-lasers and integrated optical devices;
Advantages:
1) High nonlinear optical coefficient;
2) Strong Raman activity and high Raman gain coefficient;
3) High thermal conductivity and excellent thermal stability, with Raman gain characteristics less affected by temperature, suitable for continuous operation of high-power Raman lasers;
4) Wide transmission range, excellent transmittance in the ultraviolet to near-infrared spectral range, and low loss of Raman scattering signals;
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