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

Abstract

This demonstration program is intended to demonstrate the feasibility of coupling a commercially available Nd:YAG 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 Nd:YAG 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 Nd:YAG laser welding accessory for the Polytrope 3000 have been defined, and recommendations for such an accessory are included in this report.

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Document Details

Document Type
Technical Report
Publication Date
May 26, 1989
Accession Number
ADA210351

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Amplifiers
  • Energy
  • Heat Transfer
  • Laser Applications
  • Laser Beams
  • Laser Resonators
  • Laser Safety
  • Laser Welding
  • Lasers
  • Measurement
  • Optics
  • Power Supplies
  • Production
  • Semiconductor Lasers
  • Semiconductors
  • Thermal Conductivity
  • Yag Lasers

Fields of Study

  • Physics

Readers

  • Metallurgy
  • Optical Fiber Sensing and Electromagnetic Propagation.
  • Optical Physics and Photonics.

Technology Areas

  • Directed Energy
  • Microelectronics