Abstract
The phase correction of a vortex laser beam is undertaken in the closed-loop adaptive system including a Hartmann-Shack wavefront sensor with singular reconstruction technique and a bimorph piezoceramic mirror. After correction the vortex doughnutlike beam is focused into a beam with bright axial spot that considerably increases the Střehl ratio and optical system resolution. Since the phase break cannot be exactly reproduced on the flexible mirror surface, off-axis vortices appear in the far field at the beam periphery.
| Original language | English |
|---|---|
| Pages (from-to) | 2264-2266 |
| Number of pages | 3 |
| Journal | Optics Letters |
| Volume | 34 |
| Issue number | 15 |
| DOIs | |
| Publication status | Published - 1 Aug 2009 |
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
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Starikov, F. A., Kochemasov, G. G., Koltygin, M. O., Kulikov, S. M., Manachinsky, A. N., Maslov, N. V., Sukharev, S. A., Aksenov, V. P., Izmailov, V., Kanev, F. Y., Atuchin, V. V., & Soldatenkov, I. S. (2009). Correction of vortex laser beam in a closed-loop adaptive system with bimorph mirror. Optics Letters, 34(15), 2264-2266. https://doi.org/10.1364/OL.34.002264