Single-Mode Perfluorinated Polymer Optical Fibers With Refractive Index of 1.34 for Biomedical Applications

We demonstrate a technique for the fabrication of single-mode perfluorinated polymer optical fiber (PPOF). The PPOF preform is composed of poly-methyl-methacrylate (PMMA)-based outer cladding and a graded-index multimode PPOF as the core. A photosensitive graded-index single-mode PPOF with a core di...

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Bibliographic Details
Published in:IEEE photonics technology letters 2010-01, Vol.22 (2), p.106-108
Main Authors: Guiyao Zhou, Pun, C.-F.J., Hwa-yaw Tam, Wong, A., Lu, C., Wai, P.
Format: Article
Language:English
Subjects:
Bragg gratings
Cladding
Fiber gratings
Fiber optics
Fibers
Low loss
Noise levels
Optical coupling
Optical device fabrication
Optical fiber losses
Optical fibers
Optical polymers
perfluorinated polymer
polymer optical fiber (POF)
Preforms
Propagation losses
Refractive index
Refractivity
single mode
Transmission loss
Wavelengths
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Summary:We demonstrate a technique for the fabrication of single-mode perfluorinated polymer optical fiber (PPOF). The PPOF preform is composed of poly-methyl-methacrylate (PMMA)-based outer cladding and a graded-index multimode PPOF as the core. A photosensitive graded-index single-mode PPOF with a core diameter of about 6.6 ¿m and cladding diameter of 400 ¿m was fabricated. The fiber has a cutoff wavelength of 854 nm and exhibits single-mode characteristics at wavelengths of 1310 and 1550 nm. The transmission loss is less than 0.2 dB/m in the wavelength range of 1410-1540 nm and less than 0.5 dB/m for wavelengths up to 1610 nm, significantly less than the typical transmission loss of ~100 dB/m for PMMA fiber. Another important feature of the PPOF is its low refractive index of 1.34, close to aqueous solution of biomaterials, permitting strong optical coupling for biomedical applications.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2009.2036377