The effects of material selection, laser power, weld diameter/penetration, and beam balancing on post-weld-shift (PWS) during pigtailing of 40G optoelectronic modules have been numerically modeled and experimentally studied. The simulated welded joints were in very good agreement with measured results and were implemented into the process development phase to achieve the minimal laser energy required for a good quality weld. The 3-D finite element model qualitatively assess vertical and horizontal post weld shifts resulting from the unbalanced laser beam energy input. This work has led to an understanding of the effects of package construction and laser energy variation on the PWS, which may provide the design guidelines to reproduce a reliable, high yield laser module with high performance.

1.
W.
Jeffrey
, “
Optical Alignment in Optoelectronic Components
,”
Advanced Microelectronics
, Vol.
20
, No.
1
, January/February,
2002
.
2.
Geoff
Shannon
and
Edward
Palen
, “
Laser-Weld Attachment Enables Repeatable Submicron Precision
,”
Optical Manufacturing Journal
, Vol.
1
, Issue.
2
, May/June
2002
.
3.
Wood-Hi
Cheng
and
Szu-Chun
Wang
, “
Effect of Au Thickness on Laser Beam Penetration in Semiconductor Laser Packages
”,
IEEE Transactions on Advanced Packaging
, Vol.
20
, No.
4
, November
1997
; pp.
396
402
4.
Kamran
Mobarhan
,
Soon
Jang
, and
Randy
Heyler
, “
Laser Diode Packaging Technology: 980 nm EDFA Pump Lasers for Telecommunication Applications
,”
Newport Corp. Technical Application Note No.3
5.
Marko
Labudovic
and
Michael
Burkaka
, “
Finite Element Analysis of Post-Weld Shift During Fiber Pigtail of 980 nm Pump Laser
,”
IEEE Transactions on Advanced Packaging
, Vol.
26
, No.
1
, February
2003
; pp.
41
46
6.
Jao-Hwa
Kuang
and
Maw-Tyan
Sheen
, “
Post-Weld-Shift in Dual-in-Line Laser Package
,”
IEEE Transactions on Advanced Packaging
, Vol.
24
, No.
1
, February
2001
; pp.
81
85
7.
Peter
Mueller
and
Brend
Valk
, “
Automated Fiber Attachment for 980nm Pump Modules
,”
2000 Electronic Components and Technology Conference
, pp.
5
9
This content is only available via PDF.
You do not currently have access to this content.