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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 2 — Jan. 28, 2013
  • pp: 2408–2413

Capturing a reflective cross-sectional image of an optical fiber with partially coherent laser light to measure the refractive index profile of a multimode optical fiber

Fang-Wen Sheu and Heng-Jian Jhang  »View Author Affiliations


Optics Express, Vol. 21, Issue 2, pp. 2408-2413 (2013)
http://dx.doi.org/10.1364/OE.21.002408


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Abstract

We focused partially coherent laser light onto an optical fiber end-face and captured a high-quality reflective cross-sectional image of the fiber. By analyzing the reflected light intensity distribution of the captured fiber image, we can achieve refractive-index profiling of a step-index multimode optical fiber. The measurement error caused by the reflected light from the other fiber end-face positioned in air can be greatly improved by inserting that end of the fiber into water. This simple and easy technique for fiber index profiling by employing reduced-coherence laser light is very useful in determining the refractive index profiles of various multimode optical fibers.

© 2013 OSA

OCIS Codes
(030.1670) Coherence and statistical optics : Coherent optical effects
(060.2270) Fiber optics and optical communications : Fiber characterization
(060.2350) Fiber optics and optical communications : Fiber optics imaging
(140.3300) Lasers and laser optics : Laser beam shaping

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: November 12, 2012
Revised Manuscript: December 29, 2012
Manuscript Accepted: January 6, 2013
Published: January 24, 2013

Citation
Fang-Wen Sheu and Heng-Jian Jhang, "Capturing a reflective cross-sectional image of an optical fiber with partially coherent laser light to measure the refractive index profile of a multimode optical fiber," Opt. Express 21, 2408-2413 (2013)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-21-2-2408


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References

  1. M. Ikeda, M. Tateda, and H. Yoshikiyo, “Refractive index profile of a graded index fiber: measurement by a reflection method,” Appl. Opt.14(4), 814–815 (1975). [CrossRef] [PubMed]
  2. Y. Park, N. H. Seong, Y. Youk, and D. Y. Kim, “Simple scanning fibre-optic confocal microscopy for the refractive index profile measurement of an optical fibre,” Meas. Sci. Technol.13(5), 695–699 (2002). [CrossRef]
  3. Y. Youk and D. Y. Kim, “A simple reflection-type two-dimensional refractive index profile measurement technique for optical waveguides,” Opt. Commun.262(2), 206–210 (2006). [CrossRef]
  4. Y. Youk and D. Y. Kim, “Tightly focused epimicroscope technique for submicrometer-resolved highly sensitive refractive index measurement of an optical waveguide,” Appl. Opt.46(15), 2949–2953 (2007). [CrossRef] [PubMed]
  5. I. P. Radko, V. S. Volkov, S. I. Bozhevolnyi, J. Henningsen, and J. Pedersen, “Near-field mapping of surface refractive-index distributions,” Laser Phys. Lett.2(9), 440–444 (2005). [CrossRef]
  6. F.-W. Sheu and J.-Y. Chen, “Fiber cross-sectional imaging by manually controlled low coherence light sources,” Opt. Express16(26), 22113–22118 (2008). [CrossRef] [PubMed]
  7. F.-W. Sheu and J.-Y. Chen, “Observing cross-sectional images of various optical fibers using low coherence transformed laser light,” Physics Procedia19, 325–328 (2011). [CrossRef]
  8. D.-A. Wang, F.-W. Sheu, and Y.-S. Chiu, “In-plane vibration characterization of microelectromechanical systems using acousto-optic modulated partially incoherent stroboscopic imaging,” Opt. Lasers Eng.49(7), 954–961 (2011). [CrossRef]
  9. F.-W. Sheu, C.-Y. Weng, and C.-H. Chen, “Improved fabrication of circular-grating microstructured devices using partially spatially incoherent ultraviolet laser light,” Opt. Commun.285(13–14), 2990–2995 (2012). [CrossRef]
  10. F.-W. Sheu and J.-Y. Chen, “Observing cross-sectional images and averaged optical patterns of photonic crystal fibers using partially incoherent laser light,” J. Euro. Opt. Soc. Rap. Public. (accepted for publication).
  11. Thorlabs step-index multimode fiber specification sheet, http://www.thorlabs.com/Thorcat/4200/ AFS50_125Y-SpecSheet.pdf .
  12. I. H. Malitson, “Interspecimen comparison of the refractive index of fused silica,” J. Opt. Soc. Am.55(10), 1205–1208 (1965). [CrossRef]

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