Er3+-doped Tungsten-Tellurite Glass and Planar Waveguide

Abstract

Abstract: Er³⁺-doped tungsten-tellurite glass for broadband waveguide amplifier application was fabricated and characterized by the thermal stability, spectroscopic properties and ion exchange property. The
glass transition temperature T_g and crystallization onset temperature T_x are 377.1 and 488.5℃, respectively. The fluorescence spectrum indicates that the fluorescence width
at half maximum (FWHM) is 52nm. Calculated by McCumber theory the peak stimulated emission cross section of Er³⁺ from the upper level ⁴I_13/2 to the ground level ⁴I_15/2 is 0.91×10^-20cm².
Multi modes at 632.8nm were detected in Er³+-doped tungsten-tellurite glass, and the fitting effective diffusion coefficient D_e of Ag⁺ ion at 300℃ and the activation energy Q were calculated to be 2.82×10^-16μm² and 149.7kJ/mol, respectively. The results show that Er³⁺ doped tungsten-tellurite glass is a prospective candidate for broadband integrated optical
amplifier materials.

Key words: tungsten-tellurite glass, Er3+ ions, ion exchange, planar waveguide

CLC Number:

TN25

ZHAO Shi-Long,CHEN Bao-Yu,HU Li-Li. Er³⁺-doped Tungsten-Tellurite Glass and Planar Waveguide[J]. Journal of Inorganic Materials.

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Er³⁺-doped Tungsten-Tellurite Glass and Planar Waveguide

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