Optimization of 3-hole-assisted PMMA optical fiber with double cladding for UV-induced FBG fabrication

We propose a new hole-assisted polymer optical fiber design to eliminate the influence of dopant diffusion and to increase the UV writing efficiency in fiber Bragg grating inscription. The optical waveguide is formed inside a solid core surrounded by a ring of 3 large air holes in enhanced UV photos...

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Bibliographic Details
Published in:Optics express 2009-02, Vol.17 (4), p.2080-2088
Main Authors: Cheng, Kei-Chun Davis, Tse, Ming-Leung Vincent, Zhou, Guiyao, Pun, Chi-Fung Jeff, Chan, Wing-Kin Edward, Lu, C, Wai, P K A, Tam, Hwa-yaw
Format: Article
Language:English
Subjects:
Computer-Aided Design
Equipment Design
Equipment Failure Analysis
Optical Fibers
Polymethyl Methacrylate - chemistry
Polymethyl Methacrylate - radiation effects
Reproducibility of Results
Sensitivity and Specificity
Ultraviolet Rays
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Summary:We propose a new hole-assisted polymer optical fiber design to eliminate the influence of dopant diffusion and to increase the UV writing efficiency in fiber Bragg grating inscription. The optical waveguide is formed inside a solid core surrounded by a ring of 3 large air holes in enhanced UV photosensitive PMMA with double-cladding. We determined a map of the single-mode and multi-mode phase transitions using a finite-element- based vectorial optical mode solver. We obtained a wide range of geometrical configuration for the single-transverse-mode (HE11) propagation in the visible. The design is optimized to operate at the minimum optical loss wavelengths of 580 nm and 770 nm.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.17.002080