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Proceedings Paper

Comparative analysis of directional diagrams of coherent systems using the self-mixing effect and heterodyne detection
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Paper Abstract

The directional diagrams of the coherent systems using the self-mixing effect for the stable and Fabry- Perot resonators and the directional diagrams of the coherent systems based on the heterodyne detection are compared. It is shown that a number of lobes of the coherent systems using the self- mixing effect depends on the index of the mode generation. The directional diagram of the coherent system for the lowest mode generation has one major lobe. The width of the major lobe for the lowest mode generation in the cases of the stable resonator with the plane output mirror and the Fabry-Perot resonator is determined by the diffraction angle as for the heterodyne detection. The major lobe of directional diagram of coherent system based on the heterodyne detection is wider than the lobe of directional diagram of coherent system using self-mixing effect for the stable resonator with the plane output mirror and narrower than the major lobe of directional diagram of coherent system using the self-mixing effect for the Fabry-Perot resonator. In the case of the stable resonator the side lobes are absent in the directional diagrams of the coherent system for the lowest mode generation. In the case of the Fabry-Perot resonator the first side lobe is 0.5% of maximum value and of the order of the fourth side lobe of the directional diagrams of the coherent systems based on the heterodyne detection.

Paper Details

Date Published: 21 December 1994
PDF: 12 pages
Proc. SPIE 2312, Optics in Atmospheric Propagation and Random Phenomena, (21 December 1994); doi: 10.1117/12.197373
Show Author Affiliations
Alexander P. Shelekhov, Institute of Atmospheric Optics (Russia)


Published in SPIE Proceedings Vol. 2312:
Optics in Atmospheric Propagation and Random Phenomena
Anton Kohnle; Adam D. Devir, Editor(s)

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