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With just a spherical lens, one axis is collimated (generally the slow axis - the long dimension at aperture and the short dimension at a distance). The fast axis (the short dimension at aperture and the long dimension at a distance) remains a problem because it diverges faster and you get a line. We minimize this by expanding the fast axis so its divergence decreases. divergence is inversely proportional to beam size.
You're going the wrong direction. They could be used like that, but see bold above. You would end up with a tiny beam, but terrible divergence on both axes. The large emitter size and the multimode nature won't let you get away with having good divergence with a beam that small.
It seems to me that you should be able to get one axis perfectly parallel and thin with the Aixiz lens, and then use one of corrective optics to converge the other axis down to a small diameter, and then the other corrective optic to stop the convergence of that axis and make it too parallel.
You're going the wrong direction. They could be used like that, but see bold above. You would end up with a tiny beam, but terrible divergence on both axes. The large emitter size and the multimode nature won't let you get away with having good divergence with a beam that small.
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