Nd：KGW
Nd:KGW supports high neodymium doping and has a large emission area, giving it better single-pulse and low-repetition-rate performance than Nd:YAG. Its absorption band at 808 nm couples efficiently to LD pump sources emitting at 808 nm, improving emission efficiency. Its full width at half maximum is 12 nm, accommodating temperature-induced drift of the LD emission wavelength and benefiting diode-pumped KGw laser experiments and device research. Nd:KGW supports free-running, Q-switched, mode-locked and Raman-conversion operation. Nd:KGW produces stimulated Raman scattering and can become a multiwavelength visible source after frequency doubling. Its Raman performance reflects its large stimulated-emission cross section, low pump threshold, high output energy, high conversion efficiency and two high Raman gain coefficients at 768 and 901 cm⁻¹. Fundamental wavelengths of 911 nm, 1067 nm and 1351 nm can be frequency-doubled to produce red, yellow and blue light at 0.455 um, 0.533 um and 0.675 um. Applications include materials processing, optical communication, remote sensing, medicine, environmental monitoring and precision metrology.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Nd Concentration | 2.2%(cw),3%(quasi-cw) |
| Fluorescence lifetime | 130 μs |
| Transition wavelength | 1067 nm |
| Thermal conductivity | Kₐ=2.6 W/Km |
| Thermal conductivity | K_b=3.8 W/Km |
| Thermal conductivity | K_c=3.4 W/Km |
| Refractive Index [@1.06μm] | nₚ=1.978 |
| Refractive Index [@1.06μm] | nₘ=2.014 |
| Refractive Index [@1.06μm] | n_g=2.049 |
| Coefficient of thermal expansion | (100):4*10⁻⁶ K⁻¹ |
| Coefficient of thermal expansion | (010):3.6*10⁻⁶ K⁻¹ |
| Coefficient of thermal expansion | (001):8.5*10⁻⁶ K⁻¹ |
| Density | 7.248 g * cm⁻³ |
| Specific heat capacity Cp | 500 Jkg⁻¹K⁻¹ |
| Laser Wavelength | 1067 nm |
| Emission cross section a | 32.3 pm2 |
| Gain bandwidth | 2.73 nm |
| Fluorescence lifetime | 130 at 3% doping |
| Thermal conductivity | ~3 Wm⁻¹K⁻¹ |
Datasheet
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