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Journal of the Optical Society of Korea

Journal of the Optical Society of Korea

| PUBLISHED BY THE OPTICAL SOCIETY OF KOREA

  • Vol. 13, Iss. 3 — Sep. 25, 2009
  • pp: 310–315

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

Seon-Young Ryu, Hae-Young Choi, Myeong-Jin Ju, Ji-Hoon Na, Woo-June Choi, and Byeong-Ha Lee  »View Author Affiliations


Journal of the Optical Society of Korea, Vol. 13, Issue 3, pp. 310-315 (2009)


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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.

© 2009 Optical Society of Korea

OCIS Codes
(060.2280) Fiber optics and optical communications : Fiber design and fabrication
(060.2340) Fiber optics and optical communications : Fiber optics components
(110.4190) Imaging systems : Multiple imaging

History
Original Manuscript: June 10, 2009
Revised Manuscript: August 17, 2009
Manuscript Accepted: August 17, 2009
Published: September 25, 2009

Citation
Seon-Young Ryu, Hae-Young Choi, Myeong-Jin Ju, Ji-Hoon Na, Woo-June Choi, and Byeong-Ha Lee, "The Development of Double Clad Fiber and Double Clad Fiber Coupler for Fiber Based Biomedical Imaging Systems," J. Opt. Soc. Korea 13, 310-315 (2009)
http://www.opticsinfobase.org/josk/abstract.cfm?URI=josk-13-3-310


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