Abstract
We present an analysis of the combined effects of tilt and lateral displacement on the orbital angular momentum spectrum of a laser beam. Our theory explains the symmetries and properties of the spectrum under the influence of misalignments. We apply the theory to establish a reliable and efficient method for determining and subsequently eliminating tilt and lateral displacement. An improved technique for obtaining the orbital angular momentum spectrum employing Laguerre-Gaussian modes is proposed. Finally, a numerical experiment is carried out to verify the method. (C) 2010 Optical Society of America
| Original language | English (Ireland) |
|---|---|
| Number of pages | 7 |
| Journal | JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION |
| Volume | 27 |
| Publication status | Published - 1 Oct 2010 |
Authors (Note for portal: view the doc link for the full list of authors)
- Authors
- Lin, J,Yuan, XC,Chen, MZ,Dainty, JC