Correction of beam errors in high power laser diode bars and stacks

J. F. Monjardin, K. M. Nowak, H. J. Baker, D. R. Hall

Research output: Contribution to journalArticlepeer-review

93 Citations (Scopus)


The beam errors of an 11 bar laser diode stack fitted with fast-axis collimator lenses have been corrected by a single refractive plate, produced by laser cutting and polishing. The so-called smile effect is virtually eliminated and collimator aberration greatly reduced, improving the fast-axis beam quality of each bar by a factor of up to 5. The single corrector plate for the whole stack ensures that the radiation from all the laser emitters is parallel to a common axis. Beam-pointing errors of the bars have been reduced to below 0.7 mrad. © 2006 Optical Society of America.

Original languageEnglish
Pages (from-to)8178-8183
Number of pages6
JournalOptics Express
Issue number18
Publication statusPublished - 2006


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