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http://dx.doi.org/10.3807/JOSK.2009.13.3.310

The Development of Double Clad Fiber and Double Clad Fiber Coupler for Fiber Based Biomedical Imaging Systems  

Ryu, Seon-Young (Department of Information and Communications, Gwangju Institute of Science and Technology)
Choi, Hae-Young (Department of Information and Communications, Gwangju Institute of Science and Technology)
Ju, Myeong-Jin (Department of Information and Communications, Gwangju Institute of Science and Technology)
Na, Ji-Hoon (Department of Information and Communications, Gwangju Institute of Science and Technology)
Choi, Woo-June (Department of Information and Communications, Gwangju Institute of Science and Technology)
Lee, Byeong-Ha (Department of Information and Communications, Gwangju Institute of Science and Technology)
Publication Information
Journal of the Optical Society of Korea / v.13, no.3, 2009 , pp. 310-315 More about this Journal
Abstract
We report the fabrication of double clad fiber (DCF) and DCF coupler, suitable for fiber based imaging systems requiring the dual-channel transmission. Unlike the conventional DCF which uses silica for both cladding layers, the proposed DCF uses a low-index polymer for its outer-cladding layer coated over the conventional silica inner-cladding layer. The DCF is drawn with a conventional SMF preform but a low-index polymer coating is used for both jacket and outercladding of the fiber. To achieve the cladding mode coupling, a DCF coupler is fabricated by simply twisting two pieces of the proposed DCF after removing the polymer-coating at contacting regions. A cladding mode coupling ratio of 30% was achieved with a contact length of 16 cm. The proposed DCF and DCF coupler were employed in a composite optical coherence tomography (OCT) and fluorescence spectroscopy (FS) system, and both OCT images and FS signal from a plant tissue are measured simultaneously.
Keywords
Double clad fiber; Optical coherence tomography; Fluorescence spectroscopy;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
Times Cited By Web Of Science : 8  (Related Records In Web of Science)
Times Cited By SCOPUS : 10
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