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Proceedings Paper

New devices for applications in lasers and optical communications based on the wedged interference structures
Author(s): Nikolay Mindizov; Vera Pashova; Margarita Deneva; Elena Stoykova; Marin Nenchev
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Paper Abstract

We present two novel applications of optical properties of the interference wedge (compact realization of the Fizeau Interferometer) for the case of illumination with a small diameter laser beam. The first one is a new and competitive wavelength division multiplexing structure. The main advantages of the device are the possibility for separate frequency tuning of each input-output channel as well as its compactness. The made computer simulation proves that the structure can work with very short laser pulse duration (~ 0.1 ns), which corresponds to pulse repetition rate of order of ten GHz and more, thus fulfilling the requirements of modern digital communication systems. The theoretical analysis and the experimental check with laboratory model of a free-optical communication system show a sufficient resonant narrowline transmission up to 75% with the linewidth of emission from 0.05 nm to few nm. The second proposal is a device which allows for distant laser measurement of small linear translation of a rigid object for distances from a few meters up to hundred meters.

Paper Details

Date Published: 17 January 2011
PDF: 8 pages
Proc. SPIE 7747, 16th International School on Quantum Electronics: Laser Physics and Applications, 77471I (17 January 2011); doi: 10.1117/12.882821
Show Author Affiliations
Nikolay Mindizov, Technical Univ. of Sofia (Bulgaria)
Vera Pashova, Technical Univ. of Sofia (Bulgaria)
Margarita Deneva, Technical Univ. of Sofia (Bulgaria)
Elena Stoykova, Institute of Optical Materials and Technologies (Bulgaria)
Marin Nenchev, Technical Univ. of Sofia (Bulgaria)
Institute of Electronics (Bulgaria)

Published in SPIE Proceedings Vol. 7747:
16th International School on Quantum Electronics: Laser Physics and Applications
Tanja Dreischuh; Dimitar Slavov, Editor(s)

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