Bonding of optical materials by femtosecond laser welding for aerospace and high power laser applications

D. Hélie; F. Lacroix; R. Vallée

doi:10.1117/12.2010265

24 October 2012 Bonding of optical materials by femtosecond laser welding for aerospace and high power laser applications

D. Hélie, F. Lacroix, R. Vallée

Author Affiliations +

Proceedings Volume 8412, Photonics North 2012; 841210 (2012) https://doi.org/10.1117/12.2010265
Event: Photonics North 2012, 2012, Montréal, Canada

Abstract

A process for joining optical materials by direct bonding reinforced by femtosecond laser welding is presented. It is suitable for assembly of components for aerospace and high power laser applications where adhesives must be avoided. Joining is realized in two steps. Firstly, materials are direct bonded so as to achieve a state of optical contact preferably over the whole area between bonded surfaces. The second step consists in sealing the direct bonded region by writing weld lines by femtosecond laser pulses at the outskirts of the bonding surface. The bond, applicable to both similar and dissimilar material combinations, is resistant to important mechanical and thermal constraints and does not alter the assembly’s optical transmission properties inside the sealed area. Most importantly, the drawbacks of common joining methods are avoided, such as premature aging, degassing, photo-bleaching and limited applicable material combinations.

Citation Download Citation

D. Hélie, F. Lacroix, and R. Vallée "Bonding of optical materials by femtosecond laser welding for aerospace and high power laser applications", Proc. SPIE 8412, Photonics North 2012, 841210 (24 October 2012); https://doi.org/10.1117/12.2010265

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available