Chemically Activated Direct Bonding (CADB®) has become widely utilized as an epoxy-free assembly process for solid
state laser crystals in high fluence and other aggressive environments. While data has been presented as to both optical
and mechanical properties of these bond interfaces, previous research has hinted that sample preparation plays a large
part in the final results. Surface finish of samples and any surface defects or sub-surface damage present can lead to
artificially low strength values and other inconclusive results. In the current study, we prepared samples with polished
surfaces to improve the accuracy of the bond strength measurements. Here we present strength data for bonded and bulk
samples of common laser materials such as YAG, phosphate glass, and fused silica.
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