Počet záznamů: 1
Experimental Investigation and Characterization of Fabrication Shaped Clad Optical Fiber by Thermally Polishing Optical Fiber Preforms with CO2 Laser
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SYSNO ASEP 0518811 Druh ASEP C - Konferenční příspěvek (mezinárodní konf.) Zařazení RIV D - Článek ve sborníku Název Experimental Investigation and Characterization of Fabrication Shaped Clad Optical Fiber by Thermally Polishing Optical Fiber Preforms with CO2 Laser Tvůrce(i) Jasim, Ali (URE-Y)
Podrazký, Ondřej (URE-Y) RID
Peterka, Pavel (URE-Y) RID, ORCID
Todorov, Filip (URE-Y)
Honzátko, Pavel (URE-Y) RIDCelkový počet autorů 5 Číslo článku 1102909 Zdroj.dok. Proc. of SPIE, Micro-structured and Specialty Optical Fibres VI, 11029. - Bellingham : SPIE, 2019 / Kalli K. ; Mendez A. ; Peterka P. - ISSN 0277-786X - ISBN 978-1-5106-2725-3 Poč.str. 5 s. Forma vydání Tištěná - P Akce Conference on Micro-Structured and Specialty Optical Fibres VI Datum konání 03.04.2019 - 04.04.2019 Místo konání Praha Země CZ - Česká republika Typ akce WRD Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova Double clad fiber ; High-power fiber lasers ; Non-circular optical fiber ; Optical fiber drawing ; Optical preform shaping Vědní obor RIV BH - Optika, masery a lasery Obor OECD Optics (including laser optics and quantum optics) CEP GA19-03141S GA ČR - Grantová agentura ČR Institucionální podpora URE-Y - RVO:67985882 UT WOS 000502109500003 EID SCOPUS 85071980156 DOI https://doi.org/10.1117/12.2520995 Anotace We experimentally investigated loss of multimode optical fibers (MMFs) drawn of thermally shaped optical fiber preforms (OFPs). Such preforms are typically used for fabrication of double clad active fibers. The investigation involved undoped shaped MMFs coated with a low refractive index polymer. The fibers were drawn of silica rod, prepared by collapsing a pure silica tube (Heraeus F300, OH content is 0.2 ppm) in the MCVD lathe. Background losses of undoped MMFs with inner cladding of various geometries shaped by CO2 laser were measured via cut-back method. Losses of the shaped MMFs were compared to the loss of the circular and of the mechanically shaped MMF. Constraints, drawbacks and advantages of shaping the fiber preform using the CO2 laser are discussed. Shaping OFPs with CO2 beam provides advantages of quick polishing, smooth surface, and freeform shape. Results show that mechanical polishing technique leads to significant OH content elimination, which is expressed as reduced absorption peaks at wavelengths of 0.945 mu m and 1.24 mu m, which correspond to the third and second overtone, respectively. The average perimeter length of fibers cross section governs absorption at polymer-glass interface Pracoviště Ústav fotoniky a elektroniky Kontakt Petr Vacek, vacek@ufe.cz, Tel.: 266 773 413, 266 773 438, 266 773 488 Rok sběru 2020
Počet záznamů: 1