Picosecond laser welding of optical to metal components

Richard Carter, Michael Troughton, Jianyong Chen, Ian Elder, Robert R Thomson, Robert A. Lamb, Matthew Jan Daniel Esser, Duncan Paul Hand

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Citations (Scopus)


We report on practical, industrially relevant, welding of optical components to themselves and aluminum alloy components. Weld formation is achieved through the tight focusing of a 5.9ps, 400kHz Trumpf laser operating at 1030nm. By selecting suitable surface preparation, clamping and laser parameters, the plasma can be confined, even with comparatively rough surfaces, by exploiting the melt properties of the glass. The short interaction time allows for a permanent weld to form between the two materials with heating limited to a region ~300 µm across. Practical application of these weld structures is typically limited due to the induced stress within the glass and, critically, the issues surrounding post-weld thermal expansion. We report on the measured strength of the weld, with a particular emphasis on laser parameters and surface preparation.
Original languageEnglish
Title of host publicationLaser-based Micro- and Nanoprocessing X
EditorsUdo Klotzbach, Kunihiko Washio, Craig B. Arnold
ISBN (Print)9781628419719
Publication statusPublished - 4 Mar 2016
EventSPIE Photonics West 2016 - The Moscone Center, San Fransisco, United States
Duration: 13 Feb 201618 Feb 2016

Publication series

NameProceedings of SPIE
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


ConferenceSPIE Photonics West 2016
Country/TerritoryUnited States
CitySan Fransisco
Internet address


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