Near-field to far-field transition of photonic crystal fibers: symmetries and interference phenomena
Preprint
- 28 May 2002
Abstract
The transition from the near to the far field of the fundamental mode radiating out of a photonic crystal fiber is investigated experimentally and theoretically. It is observed that the hexagonal shape of the near field rotates two times by pi/6 when moving into the far field, and eventually six satellites form around a nearly gaussian far-field pattern. A semi-empirical model is proposed, based on describing the near field as a sum of seven gaussian distributions, which qualitatively explains all the observed phenomena and quantitatively predicts the relative intensity of the six satellites in the far field.Keywords
All Related Versions
- Version 1, 2002-05-28, ArXiv
- Published version: Optics Express, 10 (11), 475.
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