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Proceedings Paper

Directional coupling and branching of optical signals by dark beams
Author(s): S. Chervenkov; Dragomir Neshev; G. G. Paulus; Aleksander A. Dreischuh; Herbert Walther
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Paper Abstract

Various types of dark optical beams with respect to their phase dislocation are discussed and their propagation dynamics is analyzed. On the basis of numerical results 1D and 2D optical couplers are proposed. The respective energy efficiencies for each of the output channels are estimated. Multiple charged optical vortices and their topological instability are presented. Through a proper type of perturbation applied to these vortices they could be split into several sub-beams, thus giving the opportunity of proposing all-optical branching schemes. Two output channel distribution schemes for such an optical brancher are discussed.

Paper Details

Date Published: 9 April 2001
PDF: 5 pages
Proc. SPIE 4397, 11th International School on Quantum Electronics: Laser Physics and Applications, (9 April 2001); doi: 10.1117/12.425130
Show Author Affiliations
S. Chervenkov, Univ. of Sofia (Bulgaria)
Dragomir Neshev, Univ. of Sofia (Bulgaria)
G. G. Paulus, Max-Planck-Institut fuer Quantenoptik (Germany)
Aleksander A. Dreischuh, Univ. of Sofia (Bulgaria)
Herbert Walther, Max-Planck-Institut fuer Quantenoptik and Ludwig-Maximillians-Univ. (Germany)

Published in SPIE Proceedings Vol. 4397:
11th International School on Quantum Electronics: Laser Physics and Applications
Peter A. Atanasov; Stefka Cartaleva, Editor(s)

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