Title :
Novel post-weld-shift measurement of butterfly-type laser module employing high resolution capacitance displacement measurement technique
Author :
Liu, Y.D. ; Sheen, M.T. ; Hsu, Y.C. ; Tsai, Y.C. ; Cheng, W.H.
Author_Institution :
Dept. of Photonics, Nat. Sun Yat-sen Univ., Kaohsiung, Taiwan
Abstract :
A novel capacitance displacement measurement system with 25.4 nm resolution and 0.1 mum accuracy is employed to on-line measure the PWS of butterfly-type module. The coupling efficiency can be regained up to 90% by this real-time technique.
Keywords :
capacitance measurement; displacement measurement; laser beam welding; modules; butterfly-type laser module; capacitance displacement measurement; coupling efficiency; laser welding workstaion; post-weld-shift measurement; real-time technique; Capacitance measurement; Displacement measurement; Fiber lasers; Laser theory; Optical coupling; Optical fiber cables; Optical pulses; Packaging; Probes; Welding;
Conference_Titel :
OptoElectronics and Communications Conference, 2009. OECC 2009. 14th
Conference_Location :
Hong Kong
Print_ISBN :
978-1-4244-4102-0
Electronic_ISBN :
978-1-4244-4103-7
DOI :
10.1109/OECC.2009.5213607
