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Detail publikace
JELÍNEK, M. HRABINA, J. MIKEL, B.
Originální název
Optical fiber sensors measurement system and special fibers improvement
Typ
článek ve sborníku ve WoS nebo Scopus
Jazyk
angličtina
Originální abstrakt
We present method for the improvement of the measurement accuracy in the optical frequency spectra measurements based on tunable optical filters. The optical filter was used during the design and realization of the measurement system for the inspection of the fiber Bragg gratings. The system incorporates a reference block for the compensation of environmental influences, an interferometric verification subsystem and a PC - based control software implemented in LabView. The preliminary experimental verification of the measurement principle and the measurement system functionality were carried out on a testing rig with a specially prepared concrete console in the UJV Řež. The presented system is the laboratory version of the special nuclear power plant containment shape deformation measurement system which was installed in the power plant Temelin during last year. On the base of this research we started with preparation other optical fiber sensors to nuclear power plants measurement. These sensors will be based on the microstructured and polarization maintaining optical fibers. We started with development of new methods and techniques of the splicing and shaping optical fibers. We are able to made optical tapers from ultra-short called adiabatic with length around 400 um up to long tapers with length up to 6 millimeters. We developed new techniques of splicing standard Single Mode (SM) and Multimode (MM) optical fibers and splicing of optical fibers with different diameters in the wavelength range from 532 to 1550 nm. Together with development these techniques we prepared other techniques to splicing and shaping special optical fibers like as Polarization-Maintaining (PM) or hollow core Photonic Crystal Fiber (PCF) and theirs cross splicing methods with focus to minimalize backreflection and attenuation. The splicing special optical fibers especially PCF fibers with standard telecommunication and other SM fibers can be done by our developed techniques. Adjustment of the splicing process has to be prepared for any new optical fibers and new fibers combinations. The splicing of the same types of fibers from different manufacturers can be adjusted by several tested changes in the splicing process. We are able to splice PCF with standard telecommunication fiber with attenuation up to 2 dB. The method is also presented. Development of these new techniques and methods of the optical fibers splicing are made with respect to using these fibers to another research and development in the field of optical fibers sensors, laser frequency stabilization and laser interferometry based on optical fibers. Especially for the field of laser frequency stabilization we developed and present new techniques to closing microstructured fibers with gases inside.
Klíčová slova
Tunable optical filter, fiber Bragg gratings, microstructured fibers, optical sensors, shaping optical fibers, splicing optical fibers, tapering optical fibers.
Autoři
JELÍNEK, M.; HRABINA, J.; MIKEL, B.
Vydáno
29. 6. 2017
Nakladatel
SPIE
Místo
Munich, Germany
ISBN
9781510611047
Kniha
Proc. SPIE 10329, Optical Measurement System for Industrial Inspection X
Edice
Volume 10329
ISSN
0277-786X
Periodikum
Proceedings of SPIE
Ročník
Vol. 10329
Číslo
10329 43
Stát
Spojené státy americké
Strany od
1
Strany do
8
Strany počet
BibTex
@inproceedings{BUT138540, author="Michal {Jelínek} and Jan {Hrabina} and Břetislav {Mikel}", title="Optical fiber sensors measurement system and special fibers improvement", booktitle="Proc. SPIE 10329, Optical Measurement System for Industrial Inspection X", year="2017", series="Volume 10329", journal="Proceedings of SPIE", volume="Vol. 10329", number="10329 43", pages="1--8", publisher="SPIE", address="Munich, Germany", doi="10.1117/12.2270251", isbn="9781510611047", issn="0277-786X" }