Compositional effects on the thermo-optic coefficients of barium borophosphate glasses

Eric Tong Yih Lee; Elizabeth R. M. Taylor

doi:10.1117/12.529199

14 June 2004 Compositional effects on the thermo-optic coefficients of barium borophosphate glasses

Eric Tong Yih Lee, Elizabeth R. M. Taylor

Proceedings Volume 5350, Optical Components and Materials; (2004) https://doi.org/10.1117/12.529199
Event: Integrated Optoelectronic Devices 2004, 2004, San Jose, CA, United States

Abstract

Two series of ternary glasses with compositions of 0.5BaO-xB₂O₃-(0.5-x)P₂O₅ (Series 1) and (1-x)Ba(PO₃)₂-xB₂O₃ (Series 2) have been prepared. Various properties, such as refractive index (n), glass transition temperature (T_g), thermal expansion coefficient (a) and thermo-optic coefficient (dn/dT) have been measured to assess the potential of these borophosphate glasses for athermalisation. The results obtained for these glasses can be explained based on the incorporation of BO₃ and BO₄ units into the glass structural network. To achieve athermalisation, a negative dn/dT is required to counter the effect of thermal expansion.

Citation Download Citation

Eric Tong Yih Lee and Elizabeth R. M. Taylor "Compositional effects on the thermo-optic coefficients of barium borophosphate glasses", Proc. SPIE 5350, Optical Components and Materials, (14 June 2004); https://doi.org/10.1117/12.529199

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