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Theoretical and Experimental Analysis of Long-Period Fiber Gratings Made Directly Into Er-Doped Active Fibers
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SYSNO ASEP 0341432 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Theoretical and Experimental Analysis of Long-Period Fiber Gratings Made Directly Into Er-Doped Active Fibers Author(s) Krčmařík, David (URE-Y)
Slavík, Radan (URE-Y)
Kulishov, M. (US)
Karásek, Miroslav (URE-Y) RIDSource Title Journal of Lightwave Technology. - : Institute of Electrical and Electronics Engineers - ISSN 0733-8724
Roč. 27, č. 13 (2009), s. 2335-2342Number of pages 8 s. Language eng - English Country US - United States Keywords optical communications ; optical fibre ; fibre gratings Subject RIV JA - Electronics ; Optoelectronics, Electrical Engineering R&D Projects GA102/07/0999 GA ČR - Czech Science Foundation (CSF) KJB200670601 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) CEZ AV0Z20670512 - URE-Y (2005-2011) UT WOS 000267994200007 DOI 10.1109/JLT.2008.2008316 Annotation We present a rigorous theoretical and experimental analysis of signal propagation along a long-period fiber grating (LPFG) made in an Erbium-doped amplifying fiber (EDF). First, numerous effects that influence amplifying process in Erbium-doped fibers were considered. These are clustering of Er ions and subsequent upconversion and change of fiber refractive index due to the optical pumping. Subsequently, LPFG-assisted interaction between the amplified fiber core mode and a cladding mode is described combining rate equations that describe propagation through the EDF and coupled-mode equations that describe propagation through the LPFG. While this implementation is relatively straightforward for the signal and pump, it requires particular attention when dealing with spontaneous emission and amplified spontaneous emission (ASE) that are incoherent (described purely by amplitude), but have to diffract on the LPFG (that is amplitude and phase sensitive). Workplace Institute of Radio Engineering and Electronics Contact Petr Vacek, vacek@ufe.cz, Tel.: 266 773 413, 266 773 438, 266 773 488 Year of Publishing 2010
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