Effects of binary phase plates on the far field diffraction pattern of an out of phase coupled linear array of waveguide lasers

In this paper we study the use of a binary phase plate for transforming the double-lobed far-field diffraction pattern of an array oscillating on the out-of-phase mode into a single-lobed pattern. We analyse, versus the filling factor of the array and the distance between the array and the phase fil...

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Bibliographic Details
Published in:Optics communications 1995-09, Vol.119 (3), p.373-380
Main Authors: Lescroart, G., Bourdet, G.
Format: Article
Language:English
Subjects:
Diffraction and scattering
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Optics
Physics
Wave optics
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Summary:In this paper we study the use of a binary phase plate for transforming the double-lobed far-field diffraction pattern of an array oscillating on the out-of-phase mode into a single-lobed pattern. We analyse, versus the filling factor of the array and the distance between the array and the phase filter, the amount of the emitted energy contained in the main lobe. We then compare, in terms of the power concentrated in the central lobe, various configurations of a linear array phase-coupled by the Talbot effect.
ISSN:0030-4018
1873-0310
DOI:10.1016/0030-4018(95)00302-O