期刊
APPLIED OPTICS
卷 51, 期 12, 页码 2098-2106出版社
OPTICAL SOC AMER
DOI: 10.1364/AO.51.002098
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资金
- engineering team from Doric Lenses, Inc.
- FQRNT (Fonds de Recherche du Quebec-Nature et Technologies)
- NSERC (National Sciences and Engineering Research Council of Canada)
- CIPI (Canadian Institute for Photonic Innovation)
A process for reinforcing a direct bond between optical materials using femtosecond laser welding is presented. As a side benefit, the optical transmission properties of the joined components are shown not to be altered by the joining process. The joints exhibits higher shear breakage loads, yielding a maximum measured joint strength of 5.25 MPa for an applied load of 75 kg in fused silica. The laser sealing of direct bonds between dissimilar materials improves their resistance to thermal shocks. Direct bonds sealed by a circular weld seam can withstand thermal shocks at temperatures at least twice as great as nonreinforced direct bonds. The combination of ultrashort laser welding and direct bonding provides an innovative joining method that benefits from the advantages of both contributing physical processes. c 2012 Optical Society of America OCIS codes: 140.3390, 140.7090, 160.2750, 220.4610, 320.2250.
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