NS-Rod
This product is a high concentration Nd^3+ doped large size silica laser glass. It is based on innovative nano-powder doping and high temperature sintering technology - large size, high optical uniformity and low loss Neodymium doped quartz (silica) glass rods that have been successfully fabricated.
It can be used as the core of ultra-large mode area micro-structure fibers and gain medium of solid-state lasers. It has important application value in high power CW lasers and high energy ultra-short pulse lasers.
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Physical Optical Properties
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Refractive index fluctuations: 5 x 10^-5
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Refractive index control range @ 1064 nm: 1.4520 - 1.4625
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Attenuation (dB / m @ 1200 nm): ​ ​≤ 0.1
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Linear expansion coefficient: ~ 6.5
(10^-7 / ºC ( 20 ~ 100ºC )
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Density (g / cm^3): 2.21
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Glass transition temperature T_g (ºC ): > 1000
Spectroscopy Properties
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Doping concentration (ppm): 15000 - 30000
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Emission peak wavelength (nm): 1062
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Fluorescence lifetime (μs) @1062 nm: 380
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Absorption cross-section (pm^2) @805 nm: ~ 1.3
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Emission cross section（pm^2）@1060nm: ≥ 2.5
Geometry Size
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Diameter (mm): ≥ 5
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Length (mm): ≥ 100​​​