Experimental Investigation and Characterization of Fabrication Shaped Clad Optical Fiber by Thermally Polishing Optical Fiber Preforms with CO2 Laser

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985882%3A_____%2F19%3A00518811" target="_blank" >RIV/67985882:_____/19:00518811 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1117/12.2520995" target="_blank" >http://dx.doi.org/10.1117/12.2520995</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1117/12.2520995" target="_blank" >10.1117/12.2520995</a>

Result language
angličtina
Original language name
Experimental Investigation and Characterization of Fabrication Shaped Clad Optical Fiber by Thermally Polishing Optical Fiber Preforms with CO2 Laser
Original language description
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
Czech name
—
Czech description
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Project
<a href="/en/project/GA19-03141S" target="_blank" >GA19-03141S: Research of novel geometries and layouts of double-clad rare-earth-doped fibers for high power fiber lasers</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proc. of SPIE, Micro-structured and Specialty Optical Fibres VI
ISBN
978-1-5106-2725-3
ISSN
0277-786X
e-ISSN
1996-756X
Number of pages
5
Pages from-to
1102909
Publisher name
SPIE
Place of publication
Bellingham
Event location
Praha
Event date
Apr 3, 2019
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000502109500003

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