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Proceedings Paper

Novel optical fibers for the inscription of long-period gratings
Author(s): Miroslav Chomát; Vlastimil Matějec; Ivan Kašík; Jiři Čtyroký; Daniela Berkova; Miloš Hayer; Jiři Kaňka; Filip Todorov; Alexandr Jančárek
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Paper Abstract

In recent years rapid progress has been made in the field of long-period gratings (LPG) inscribed in optical fibers. Though in most cases LPGs in standard commercial single-mode fibers have been investigated, great effort has also been put to LPGs in experimental fibers with modified structures, whose properties can significantly differ from those of LPGs in standard fibers. This contribution deals with two novel types of optical fibers for LPG inscription. The first of them is a single-mode fiber in which the refractive index in the fiber cladding increases quadratically with radius. In the second fiber, the cladding index decreases quadratically with radius. Basic results of a theoretical analysis of LPGs inscribed in these fibers are presented along with details on the preform fabrication by the MCVD method and on fiber drawing. Examples of transmission spectra of LPGs inscribed by a focused beam of a CO2 laser are given and properties ofthe LPGs are discussed.

Paper Details

Date Published: 18 April 2006
PDF: 7 pages
Proc. SPIE 6180, Photonics, Devices, and Systems III, 61800X (18 April 2006); doi: 10.1117/12.675684
Show Author Affiliations
Miroslav Chomát, Institute of Radio Engineering and Electronics (Czech Republic)
Vlastimil Matějec, Institute of Radio Engineering and Electronics (Czech Republic)
Ivan Kašík, Institute of Radio Engineering and Electronics (Czech Republic)
Jiři Čtyroký, Institute of Radio Engineering and Electronics (Czech Republic)
Daniela Berkova, Institute of Radio Engineering and Electronics (Czech Republic)
Miloš Hayer, Institute of Radio Engineering and Electronics (Czech Republic)
Jiři Kaňka, Institute of Radio Engineering and Electronics (Czech Republic)
Filip Todorov, Czech Technical Univ. in Prague (Czech Republic)
Alexandr Jančárek, Czech Technical Univ. in Prague (Czech Republic)


Published in SPIE Proceedings Vol. 6180:
Photonics, Devices, and Systems III
Pavel Tománek; Miroslav Hrabovský; Miroslav Miler; Dagmar Senderákova, Editor(s)

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