Accession Number:

ADA210351

Title:

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

Descriptive Note:

Final rept.

Corporate Author:

KAPTRON INC PALO ALTO CA

Personal Author(s):

Report Date:

1989-05-26

Pagination or Media Count:

28.0

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.

Descriptors:

• *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

Subject Categories:

• Lasers and Masers
• Manufacturing and Industrial Engineering and Control of Production Systems
• Fiber Optics and Integrated Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE