Abstract
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 language | English |
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Pages (from-to) | 8178-8183 |
Number of pages | 6 |
Journal | Optics Express |
Volume | 14 |
Issue number | 18 |
DOIs | |
Publication status | Published - 2006 |