Automation of Fiber-Optic Pigtailing Process: Laser Welding Demonstration Program

reportActive / Technical Report | Accession Number: ADA210351 | Open PDF

Abstract:

This demonstration program is intended to demonstrate the feasibility of coupling a commercially available NdYAG laser with the Kaptron POLYTROPE 3000 automatic alignment system for the production of single mode fiber pigtailed semiconductor lasers. It has been demonstrated that 30 watts of NdYAG laser power can produce repeatable welds of 0.18mm thick Kovar saddles to gold plated substrates of the type used for semiconductor laser modules. It has also been shown that beam geometry stabilization by passing the beam through a step index fiber or reflective tube channel is essential for reliable and repeatable welding with this type of multimode laser. Laser and delivery system requirements for a production NdYAG laser welding accessory for the Polytrope 3000 have been defined, and recommendations for such an accessory are included in this report.

Author(s):
No Author(s) Identified
Author Organization(s):
KAPTRON INC PALO ALTO CA
Descriptive Note:
Final rept.
Pagination:
0028

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Contract/Grant Number(s):
N00014-88-C-2050
Monitor Series:
NRL
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_5.3_Planning; JCA_1.2.7_Experimentation; JCA_5.3.4_Develop Courses of Action; JCA_5.3.5_Analyze Courses of Action; JCA_1.2.5_Lessons Learned
Modernization Areas:
Microelectronics
Communities of Interest:
Energy and Power Technologies
Descriptor(s):
*LASER WELDING, *FIBER OPTICS, *PRODUCTION, *AUTOMATION, *SEMICONDUCTOR LASERS, *YAG LASERS, REFLECTION, LASERS, FEASIBILITY STUDIES, GEOMETRY, INDEXES, MULTIMODE, POWER, GOLD, REPRODUCIBILITY, CHANNELS, PLATING, WELDING, COUPLINGS, TUBES, SUBSTRATES, MODULAR CONSTRUCTION, DEMONSTRATIONS, DELIVERY, FIBERS, STABILIZATION, RELIABILITY
Field(s)/Group(s):
Lasers and Masers, Manufacturing and Industrial Engineering and Control of Production Systems, Fiber Optics and Integrated Optics
Report Date:
1989 May 26