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Single cavity filters on end-faces of optical fibers

  • We have developed thin film Fabry-Perot filters directly coated on optical fibers to archive a high level of integration with a reduction of optical elements. Such band-pass filters can be used in fiber optical sensor systems, and for fiber communication, e.g. CWDM applications. The filters cavities consist of a single spacer and two dielectric mirrors. The dielectric mirrors are deposited by PVD directly on end-faces of single-mode optical fibers. Dielectric as well as polymeric materials were applied as the spacer layer. Polymeric spacer layers were deposited by dip coating. The influence of the mirror reflectivity on the transmission band of the Fabry-Perot filters was investigated. Furthermore, the optical performance of filters with first order (λ/2) as well as higher order spacers was analyzed. The experimental results are compared with numerical analysis of Fabry-Perot cavities on the end-face of cylindrical waveguides. The spectral characteristic of the filters are calculated using a software solving Maxwell´s equations by a FDTD method. The layer design of the filters and the deposition process were optimized for maximum transmission and narrow bandwidth of the transmission peak. Passive band-pass filters on fiber end-faces were designed, fabricated and characterized for transmission wavelengths of 945 nm, 1300 nm, as well as 1550 nm. Bandwidths as narrow as 1 nm could be achieved for 945 nm.

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Author:Stefan Meister, Dawid Schweda, Marcus Dziedzina, Aws Al-Saadi, Bülent A. Franke, Chris Scharfenorth, Bernd Grimm, Daniela Dufft, Sigurd SchraderORCiD, Hans J. Eichler
URN:urn:nbn:de:kobv:526-opus4-15214
DOI (Version of Record):https://doi.org/10.1117/12.842519
Publisher:Society of Photo-Optical Instrumentation Engineers (SPIE)
Document Type:Conference Proceeding
Language:English
Year of Publication:2010
Publishing Institution:Technische Hochschule Wildau
Release Date:2021/09/16
Tag:Fabry-Perot filter; band-pass filter; dip coating; fiber optics; microcavity; optical coating
First Page:253
Last Page:261
Source:Stefan Meister, Dawid Schweda, Marcus Dziedzina, Aws Al-Saadi, Bülent A. Franke, Chris Scharfenorth, Bernd Grimm, Daniela Dufft, Sigurd K. Schrader, and Hans J. Eichler "Single cavity filters on end-faces of optical fibers", Proc. SPIE 7579, Laser Resonators and Beam Control XII, 75791D (17 February 2010); https://doi.org/10.1117/12.842519
Copyright:Copyright 2010 Society of Photo-Optical Instrumentation Engineers (SPIE). One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
Faculties an central facilities:Fachbereich Ingenieurwesen / Wirtschaftsingenieurwesen (bis 8/2014)
Dewey Decimal Classification:6 Technik, Medizin, angewandte Wissenschaften / 62 Ingenieurwissenschaften / 620 Ingenieurwissenschaften und zugeordnete Tätigkeiten
Licence (German):Das Dokument ist urheberrechtlich geschützt
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