N31 Nd Glass (Neodymium Glass) Description
N31 Nd Glass is specially developed for high-power laser equipment. N31 is a material with high energy storage, a large excitation cross-section and a long fluorescence lifetime. It is also easy to prepare glass with large size and good optical uniformity, so it is widely used in high-power laser systems. At present, it has been successfully applied to the Shenguang II and Shenguang III systems.
N31 Nd Glass (Neodymium Glass) Specifications
Laser Specification
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Nd2O3 (wt%)
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3.5
|
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Nd3+ conc.(1020ions/cm3)
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3.4±0.1
|
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Stimulated emission cross section (10-20cm2)
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3.8±0.1
|
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1053nm (μsec) lifetime
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≥370 (Nd2O3:0.5wt%)
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≥360 (Nd2O3:1.2wt%)
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≥315 (Nd2O3:3.5wt%)
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≥310 (Nd2O3:4.2wt%)
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Effective bandwidth (nm)
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25.4
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Fluorescence peak wavelength (nm)
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1053
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Absorption coefficient (cm-1)
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≤0.0015(1053nm)
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≤0.25(400nm)
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≤1.5(3333nm)
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Thermal Specification
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Transition temperature (℃)
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445
|
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Softening temperature (℃)
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485
|
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Coefficient of linear thermal expansion (10-7/K) (30~100℃)
|
116
|
|
Thermal coefficient Optical path length (10-6/K) (50~100℃)
|
1.4
|
|
Thermal conductivity (25℃) (W/Mk)
|
0.59
|
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Specific heat capacity (25℃) (J/Gk)
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0.75
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Other Specification
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Density g/cm3
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2.87
|
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Young's modulus (Gpa)
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58.3
|
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Poisson's ratio
|
0.26
|
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Knoop hardness (kg/cm2)
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404
|
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Fracture toughness (Mpa.m1/2)
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0.58
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Optical specifications
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Non-linear refractive index coefficient n2 (×10-13e.s.u)
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≤1.2
|
|
Refractive index (1053 nm)
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1.535±0.003
|
|
Abbe value
|
65.6
|
|
dn/dt (10-6/℃) (20~100℃)
|
-4.3
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Absorption and emission spectra
N31 Nd Glass (Neodymium Glass) Applications
Mainly used for inertial confinement fusion physics experimental research, can provide nearly 200,000 joules, 60TW ultraviolet radiation source
For nonlinear laser microscopy, practical, fiber-based, high-power, broadband light source and practical optical frequency comb system
Used in femtosecond laser writing method, optical communication
N31 Nd Glass (Neodymium Glass) Packaging
Our N31 Nd Glass (Neodymium Glass) is carefully handled during storage and transportation to preserve the quality of our product in its original condition.
