Abstract
We analyze the evolution of the vortex part of the orbital angular momentum during its propagation through separable first-order optical systems. We obtain that the evolution of the vortex part depends only upon the parameters ax, ay, bx, and by of the ray transformation matrix, and that isotropic systems with the same ratio b/a produce the same change of the vortex part of the orbital angular momentum. Finally, it is shown that when light propagates through an optical fiber with a quadratic refractive index profile, the vortex part of the orbital angular momentum cannot change its sign more than four times per period.
| Original language | English |
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| Title of host publication | Proceedings of the 15th ProRISC, Annual Workshop on Circuits, Systems and Signal Processing (ProRISC 2004) 25 - 26 November 2004, Veldhoven, the Netherlands |
| Place of Publication | Utrecht, the Netherlands |
| Publisher | STW Technology Foundation |
| Pages | 209-214 |
| ISBN (Print) | 90-73461-43-X |
| Publication status | Published - 2004 |
| Event | 2004 Annual Workshop on Circuits, Systems and Signal Processing (ProRISC 2004) - Veldhoven, Netherlands Duration: 25 Nov 2004 → 26 Nov 2004 |
Conference
| Conference | 2004 Annual Workshop on Circuits, Systems and Signal Processing (ProRISC 2004) |
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| Abbreviated title | ProRISC 2004 |
| Country/Territory | Netherlands |
| City | Veldhoven |
| Period | 25/11/04 → 26/11/04 |