1.8kW diode laser system for fibre-delivery using brightness-enhanced diode stacks and a novel final beam-shaper

H. J. Baker, J. F. Monjardin, P. Kneip, D. R. Hall, R. McBride

Research output: Chapter in Book/Report/Conference proceedingConference contribution

13 Citations (Scopus)

Abstract

A 1.8kW diode laser source made up of 100 W diode bars is designed for fibre delivery, using two new techniques to enhance the delivered brightness and equalise the beam-parameter product. Custom corrective phase plates in laser-cut silica are attached permanently to the two stacks of ten bars, correcting bar smile and restoring a factor of 2.5 in lost brightness. The two units are beam-compacted and polarisation coupled to a single array beam. As a final step, a novel confocal beam-slicer produces five segments from the slow-axis beam profile and stacks the segments in the fast-axis direction.

Original languageEnglish
Title of host publicationHigh-Power Diode Laser Technology and Applications VI
Volume6876
DOIs
Publication statusPublished - 2008
EventPhysics and Simulation of Optoelectronic Devices XVI - San Jose, CA, United States
Duration: 21 Jan 200824 Jan 2008

Conference

ConferencePhysics and Simulation of Optoelectronic Devices XVI
Country/TerritoryUnited States
CitySan Jose, CA
Period21/01/0824/01/08

Keywords

  • Beam-shaping
  • Diode laser bars

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