Er:glass
Erbium-ytterbium co-doped phosphate glass is a rare-earth-doped laser material based on a phosphate glass host. It has a long fluorescence lifetime and generates 1535nm laser light. LD pumping provides high pumping efficiency and a compact structure. It is mainly used for laser ranging and tracking, electro-optical countermeasures, high-intensity laser damage, laser medicine, and laser cosmetic treatments, and features optical waveguide amplification and high-gain fiber amplification. Doping concentrations: 1. erbium ion concentration: 0.13-1.5X102; 2. ytterbium ion concentration: 1.0X1021. Laser wavelength: 1535nm. Fluorescence lifetime (ms): ≥8.0 ms. Fluorescence half-width (nm): 29.9nm. Linear expansion coefficient (x10-7): 137x10-7. Density (g/cm3): 2.9g/cm3.
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