Simple method enabling pulse on command from high power, high frequency lasers

David J. Baer, Graham D. Marshall, David W. Coutts, Richard P. Mildren, Michael J. Withford

Research output: Contribution to journalArticleResearchpeer-review

Abstract

A method for addressing individual laser pulses in high repetition frequency systems using an intracavity optical chopper and novel electronic timing system is reported. This "pulse on command" capability is shown to enable free running and both subharmonic pulse rate and burst mode operation of a high power, high pulse frequency copper vapor laser while maintaining a fixed output pulse energy. We demonstrate that this technique can be used to improve feature finish when laser micromachining metal.

LanguageEnglish
Article number093103
Pages093103-1-093103-5
Number of pages5
JournalReview of Scientific Instruments
Volume77
Issue number9
DOIs
Publication statusPublished - 2006

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commands
Laser pulses
Lasers
pulses
lasers
pulse rate
laser machining
electric choppers
Micromachining
Laser modes
repetition
bursts
Vapors
time measurement
vapors
Copper
copper
output
Metals
electronics

Cite this

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author = "Baer, {David J.} and Marshall, {Graham D.} and Coutts, {David W.} and Mildren, {Richard P.} and Withford, {Michael J.}",
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Simple method enabling pulse on command from high power, high frequency lasers. / Baer, David J.; Marshall, Graham D.; Coutts, David W.; Mildren, Richard P.; Withford, Michael J.

In: Review of Scientific Instruments, Vol. 77, No. 9, 093103, 2006, p. 093103-1-093103-5.

Research output: Contribution to journalArticleResearchpeer-review

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AU - Marshall, Graham D.

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AU - Withford, Michael J.

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