Title :
High Coupling Efficiency and High Yield Coaxial-Type Laser Module Packages Using On-Line Monitoring System
Author :
Hsu, Y.C. ; Kuang, J.H. ; Tsai, Y.C. ; Cheng, W.H.
Author_Institution :
Inst. of Electro-Opt. Eng. &, Nat. Sun Yat-Sen Univ., Kaohsiung
Abstract :
The laser-welded coaxial-type laser module packages using an on-line monitoring system (OLMS) is presented. The OLMS is integrated with an ultra-high precision laser displacement meter (LDM) and a laser welding system that enables to quantitatively on-line process the successive postweld shift (PWS) measurements by the LDM and corrections by the laser welding during multiple welding compensations in laser-welded laser module packages. The results show that the high-yield laser module packages with high coupling efficiency of 86~97 % are obtained
Keywords :
computerised monitoring; displacement measurement; electronics packaging; finite element analysis; laser beam welding; laser materials processing; modules; optical fibres; OLMS; coupling efficiency; fiber alignment shift; finite-element-method analysis; laser welding system; laser-welded coaxial-type laser module package; low-cost lightwave transmission system; multiple welding compensation; on-line monitoring system; successive postweld shift measurement; ultra-high recision laser displacement meter; Coaxial components; Displacement measurement; Fiber lasers; Laser theory; Lasers and electrooptics; Monitoring; Optical coupling; Packaging; Thermal conductivity; Welding;
Conference_Titel :
Lasers and Electro-Optics Society, 2006. LEOS 2006. 19th Annual Meeting of the IEEE
Conference_Location :
Montreal, Que.
Print_ISBN :
0-7803-9555-7
Electronic_ISBN :
0-7803-9555-7
DOI :
10.1109/LEOS.2006.278875
