A Through-hole Array on Optical Fibers Fabricated by 1-kHz/400-nm Femtosecond Laser Pulses for an in-line/pico-Litter Spectrometer Design

Femtosecond laser machining has successfully been applied to develop for a spectroscopic sensing in multi-mode optical fibers by embedding through holes penetrating the fiber core, which could work to be a sample cell for spectroscopic measurements. In this report, the spectroscopic measurement usin...

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Bibliographic Details
Main Authors: Goya, Kenji, Itoh, Toshiaki, Seki, Atsushi, Watanabe, Kazuhiro
Format: Conference Proceeding
Language:English
Subjects:
femtosecond laser drilling
Fiber optic spectrometer
micro through-hole array
pico-litter sample cell
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Summary:Femtosecond laser machining has successfully been applied to develop for a spectroscopic sensing in multi-mode optical fibers by embedding through holes penetrating the fiber core, which could work to be a sample cell for spectroscopic measurements. In this report, the spectroscopic measurement using the pico-litter sample cell will be shown for liquid dye of Rhodamine 6G (R6G). Even with a single cell volume of 20 pL, the absorption spectra are appeared in the visible range centered at a wavelength of 530nm corresponding to the peak absorption wavelength of R6G solutions.
ISSN:1877-7058
1877-7058
DOI:10.1016/j.proeng.2014.11.305