Nanjing Crylink Photonics Co.,Ltd
Growing crystal, Lingling Value.
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N31 phosphate glass is specially developed for high power laser facility. N31 is a good material which has the characteristics of high energy storage, large excitation cross section and 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 in Shen Guangand Shen Guangsystems.
| Nd2O3 (wt%) | 3.5 |
| Nd3+ conc.(1020ions/cm3) | 3.4±0.1 |
| Cross section for stimulated emission(10-20cm2) | 3.8±0.1 |
| Lifetime at 1053nm(sec) | ≥370 (Nd2O3:0.5wt%) |
| ≥360 (Nd2O3:1.2wt%) | |
| ≥315 (Nd2O3:3.5wt%) | |
| ≥310 (Nd2O3:4.2wt%) | |
| Effective bandwidth(nm) | 25.4 |
| Fluorescence peak wavelength(nm) | 1053 |
| Absorption coefficient(cm-1) | ≤0.0015(1053nm) |
| ≤0.25(400nm) | |
| ≤1.5(3333nm) |
| Non-linear refractive index coeff.n2(×10-13e.s.u) | ≤1.2 |
| Refracive index(1053nm) | 1.535±0.003 |
| Abbe value | 65.6 |
| dn/dt(10-6/℃)(20~100℃) | -4.3 |
| Transformation temp.(℃) | 445 |
| Softening temp.(℃) | 485 |
| Coeff.of linear thermal expansion (10-7/K)(30~100℃) | 116 |
| Thermal coeff. Of optical path length(10-6/K)(50~100℃) | 1.4 |
| Thermal comductive (25℃)(W/Mk) | 0.59 |
| Specific heat(25℃)(J/Gk) | 0.75 |
| Density(g/cm3) | 2.87 |
| Young’s modulus(Gpa) | 58.3 |
| Posson’ rayio | 0.26 |
| Knoop hardness(kg/cm2) | 404 |
| Fracture toughness(Mpa.m1/2) | 0.58 |
*The homogeneeity is about 2×10-6
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