NF Glass (Neodymium Glass) Description
Neodymium-doped fluorophosphates glass has the characteristics of low nonlinear coefficient, high fluorescence lifetime, and easy large-scale preparation, excellent glass forming performance, and good crystallization stability, which can meet the energy storage and amplification requirements of high-energy laser systems. There are two types of NF glass.
NF Glass (Neodymium Glass) Specifications
Material Specifications
|
Grade
|
NF1
|
NF2
|
|
Transition temperature (℃)
|
450
|
490
|
|
Softening temperature (℃)
|
491
|
528
|
|
Coeff. Coefficient of linear thermal expansion (10-7/K) (50~100℃)
|
152
|
142
|
|
Thermal coefficient Optical path length (10-6 / K) (50~100℃)
|
-1.86
|
-1.2
|
|
Thermal conductivity (25℃) (W / mK)
|
0.865
|
|
|
Density g/cm3
|
3.65
|
3.68
|
|
Young's modulus (G Pa)
|
73
|
76
|
|
Knoop hardness (kg / cm2)
|
343
|
423
|
|
Fracture toughness (MPa·m1 / 2)
|
0.35
|
0.58
|
The laser specification
|
Grade
|
NF1
|
NF2
|
|
NdF3 (wt%)
|
0.88
|
1.07
|
|
Nd3+ concentration (1020ions / cm3)
|
0.2±0.1
|
1.2±0.1
|
|
Stimulated emission cross section (10-20cm2)
|
2.7±0.1
|
3.4±0.1
|
|
1053nm (μsec) lifetime
|
≥515(NdF3:0.53wt%)
|
≥430(NdF3:0.53wt%)
|
|
≥495(NdF3:1.07wt%)
|
≥410(NdF3:1.07wt%)
|
|
Effective bandwidth (nm)
|
32.8
|
30.4
|
|
Fluorescence peak wavelength (nm)
|
1053
|
1053
|
|
Absorption coefficient (cm-1)
|
≤0.001(1053nm)
|
≤0.001(1053nm)
|
|
≤0.04(400nm)
|
≤0.04(400nm)
|
|
≤0.08(3333nm)
|
≤0.08(3333nm)
|
Optical and spectral properties
|
Grade
|
NF1
|
NF2
|
|
Non-linear refractive index coefficient n2 (×10-13e.s.u)
|
≤0.6
|
≤0.86
|
|
Refractive index (1053nm)
|
1.464±0.003
|
1.514±0.003
|
|
Abbe value
|
88
|
77
|
|
dn / dT
|
-8.84
|
-8.6
|
Absorption and emission spectra
NF Glass (Neodymium Glass) Applications
- Laser amplifier
- Microstructure Fiber Laser (MOF)
- High average power laser
- High-energy laser fusion system
-
NF Glass (Neodymium Glass) Packaging
Our NF Glass (Neodymium Glass) is carefully handled during storage and transportation to preserve the quality of our product in its original condition.
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