Title :
Online postweld shift measurement of butterfly-type laser module using a 25.4-nm resolution measurement system
Author :
Liu, Y.D. ; Sheen, M.T. ; Hsu, Y.C. ; Hsu, H.K. ; Tsai, Y.C. ; Cheng, W.H.
Author_Institution :
Dept. of Photonics, Nat. Sun Yat-sen Univ., Kaohsiung, Taiwan
Abstract :
A quantitative measurement using a 25.4-nm resolution system to online measure the postweld shift in laser-welded butterfly-type laser module package is demonstrated. The relative coupling efficiency can be regained up to an average of 88%.
Keywords :
capacitance; displacement measurement; electronics packaging; laser beam welding; modules; butterfly-type laser module package; capacitance displacement measurement system; coupling efficiency; laser welding; online postweld shift measurement; Capacitance; Fiber lasers; Laser theory; Mechanical variables measurement; Optical design; Packaging; Probes; Solid lasers; Thermal stresses; Welding;
Conference_Titel :
LEOS Annual Meeting Conference Proceedings, 2009. LEOS '09. IEEE
Conference_Location :
Belek-Antalya
Print_ISBN :
978-1-4244-3680-4
Electronic_ISBN :
1092-8081
DOI :
10.1109/LEOS.2009.5343471
