Fabrication of Axially Symmetric Long-Period Gratings With a Carbon Dioxide Laser

We demonstrate a simple but effective method of creating an axially symmetric refractive index change in an optical fiber using the infrared beam from a carbon dioxide laser. Symmetric exposure of the fiber is achieved by using a single incident laser beam and placing a special reflector behind the...

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Bibliographic Details
Published inIEEE photonics technology letters Vol. 18; no. 21; pp. 2296 - 2298
Main Authors Grubsky, V., Feinberg, J.
Format Journal Article
LanguageEnglish
Published New York IEEE 01.11.2006
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Beams (radiation)
Carbon dioxide
Carbon dioxide lasers
Diffraction gratings
Fiber lasers
Fibers
Gratings
Gratings (spectra)
Insertion loss
Laser beams
Laser transitions
Noise levels
Optical device fabrication
optical fiber filters
Optical fibers
Optical losses
Photonics
Refractive index
Ultraviolet
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Summary:We demonstrate a simple but effective method of creating an axially symmetric refractive index change in an optical fiber using the infrared beam from a carbon dioxide laser. Symmetric exposure of the fiber is achieved by using a single incident laser beam and placing a special reflector behind the fiber. Long-period gratings produced with this method exhibit clean spectra and very low insertion loss (<0.1 dB), similar to those induced by ultraviolet light
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2006.885302