Laser-Induced Stress Changes In Optical Fibers
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Format
Paperback / Softback
Språk
Engelska
Antal sidor
156
Utgivningsdatum
2009-04-01
Förlag
Sudwestdeutscher Verlag Fur Hochschulschriften Ag
Medarbetare
Durr, Florian
Illustrationer
Black & white illustrations
Dimensioner
220 x 150 x 9 mm
Vikt
281 g
Antal komponenter
1
Komponenter
Paperback
ISBN
9783838104775
Laser-Induced Stress Changes In Optical Fibers

Laser-Induced Stress Changes In Optical Fibers

About the acquisition and interpretationof in-fiber stress changes caused bylaser-irradiation

Paperback / Softback Engelska, 2009-04-01
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The precise determination of residual stress profiles in optical fibers allows drawing conclusions about radiation-induced density-changes of the fibers doped core glass. The corresponding index changes partially contribute to the phenomenon of photosensitivity, i.e. the modification of the refractive index of a glass through the irradiation with an appropriate laser source. In this book, a highly sensitive polariscope with sub-micron resolution is presented. The captured birefringence data is interpreted to be basically strain and not stress-induced, which allows the proper discrimination between an inelastic, stress-free strain contribution and a strain part essentially accompanied by elastic stress. The polariscope is used to determine irradiation-induced stress changes for different optical fibers and irradiating lasers, ranging from femtosecond to cw sources. The radiation-induced core stress changes are correlated with corresponding index changes. Thus, challenging conclusions about the impact of core compaction to the overall index change are identified.
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