Abstract
Transparent ceramic assemblies are of great interest and challenge for many optical applications. Lead silicate-based glass was successfully utilized to bond YAG/Nd:YAG and sapphire/Nd:YAG substrates at 850 °C in air. The glass's thermal characteristics and refractive index were measured and found to be comparable to those of YAG and sapphire. Microstructure and composition analysis of the glass bonding interface reveals no evidence of flaws or reaction products. The in-line transmission results of the YAG/Nd:YAG and sapphire/Nd:YAG assemblies are equivalent to those of the initial Nd:YAG ceramics throughout a wide wavelength range (450–1200 nm). The reported findings establish an efficient approach for future design and implementation of complex optical systems with enhanced optical and thermal properties.
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