OSA's Digital Library

Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 5 — Feb. 28, 2011
  • pp: 3854–3861

Coupling characteristics between two conical micro/nano fibers: simulation and experiment

Zehua Hong, Xinwan Li, Linjie Zhou, Xiaowei Shen, Jianguo Shen, Shuguang Li, and Jianping Chen  »View Author Affiliations

Optics Express, Vol. 19, Issue 5, pp. 3854-3861 (2011)

View Full Text Article

Enhanced HTML    Acrobat PDF (1070 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



The coupling characteristics of conical micro/nano fibers (CMNFs) are investigated using numerical simulations and experiments. Distinct from uniform micro/nano fibers (UMNFs), the coupling efficiency not only depends on the overlapping length between two CMNFs but also the tapering angle of the CMNFs. With the increase of overlapping length, the coupling efficiency gradually converges to a stable value, with its convergence speed determined by the angle of the CMNFs. Experimental result shows the convergent coupling efficiency can be >90%. The spectral response of the coupler shows a “box-shape” profile with a 3-dB bandwidth of 2 nm, resembling a flat-top bandpass filter. And experimental results also show the coupling characteristics of CMNFs are overlapping length and taper angle dependent, which verify the simulation conclusions.

© 2011 OSA

OCIS Codes
(060.2340) Fiber optics and optical communications : Fiber optics components
(230.4000) Optical devices : Microstructure fabrication
(130.3990) Integrated optics : Micro-optical devices

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: November 11, 2010
Revised Manuscript: December 9, 2010
Manuscript Accepted: January 4, 2011
Published: February 14, 2011

Zehua Hong, Xinwan Li, Linjie Zhou, Xiaowei Shen, Jianguo Shen, Shuguang Li, and Jianping Chen, "Coupling characteristics between two conical micro/nano fibers: simulation and experiment," Opt. Express 19, 3854-3861 (2011)

Sort:  Author  |  Year  |  Journal  |  Reset  


  1. L. Tong, R. R. Gattass, J. B. Ashcom1, S. He, J. Lou, M. Shen, I. Maxwell, and E. Mazur, “Subwavelength-diameter silica wires for low-loss optical wave guiding,” Nature 426(6968), 816–819 (2003). [CrossRef] [PubMed]
  2. L.-J. Chen, H.-W. Chen, T.-F. Kao, J. Y. Lu, and C. K. Sun, “Low-loss subwavelength plastic fiber for terahertz waveguiding,” Opt. Lett. 31(3), 308–310 (2006). [CrossRef] [PubMed]
  3. C.-Y. Chao and L. Jay Guo, “Design and Optimization of Microring Resonators in Biochemical Sensing Applications,” J. Lightwave Technol. 24(3), 1395–1402 (2006). [CrossRef]
  4. F. Warken, E. Vetsch, D. Meschede, M. Sokolowski, and A. Rauschenbeutel, “Ultra-sensitive surface absorption spectroscopy using sub-wavelength diameter optical fibers,” Opt. Express 15(19), 11952–11958 (2007). [CrossRef] [PubMed]
  5. F. Xu, V. Pruneri, V. Finazzi, and G. Brambilla, “An embedded optical nanowire loop resonator refractometric sensor,” Opt. Express 16(2), 1062–1067 (2008). [CrossRef] [PubMed]
  6. D.-I. Yeom, E. C. Mägi, M. R. E. Lamont, M. A. Roelens, L. Fu, and B. J. Eggleton, “Low-threshold supercontinuum generation in highly nonlinear chalcogenide nanowires,” Opt. Lett. 33(7), 660–662 (2008). [CrossRef] [PubMed]
  7. D. Türke, S. Pricking, A. Husakou, J. Teipel, J. Herrmann, and H. Giessen, “Coherence of subsequent supercontinuum pulses generated in tapered fibers in the femtosecond regime,” Opt. Express 15(5), 2732–2741 (2007). [CrossRef] [PubMed]
  8. V. Grubsky and A. Savchenko, “Glass micro-fibers for efficient third harmonic generation,” Opt. Express 13(18), 6798–6806 (2005). [CrossRef] [PubMed]
  9. Z. Zhang, X. Lu, Y. Zhang, M. Zhou, T. Xi, Z. Wang, and J. Zhang, “Enhancement of third-harmonic emission from femtosecond laser filament screened partially by a thin fiber,” Opt. Lett. 35(7), 974–976 (2010). [CrossRef] [PubMed]
  10. G. Brambilla and F. Xu, “Adiabatic submicrometric tapers for optical tweezers,” Electron. Lett. 43(4), 204–206 (2007). [CrossRef]
  11. P. Pal and W. H. Knox, “Fabrication and Characterization of Fused Microfiber Resonators,” IEEE Photon. Technol. Lett. 21(12), 766–768 (2009). [CrossRef]
  12. W. Yu, Z. Xu, H. Changlun, B. Jian, and Y. Guoguang, “A tunable all-fiber filter based on microfiber loop resonator,” Appl. Phys. Lett. 86(19), 191112 (2008). [CrossRef]
  13. M. Sumetsky, “Optical fiber microcoil resonators,” Opt. Express 12(10), 2303–2316 (2004). [CrossRef] [PubMed]
  14. M. Sumetsky, Y. Dulashko, J. M. Fini, and A. Hale, “Optical microfiber loop resonator,” Appl. Phys. Lett. 86(16), 161108 (2005). [CrossRef]
  15. D. Dai and S. He, “Design of an ultrashort Si-nanowaveguide-based multimode interference coupler of arbitrary shape,” Appl. Opt. 47(1), 38–44 (2008). [CrossRef]
  16. X. Jiang, L. Tong, G. Vienne, X. Guo, A. Tsao, Q. Yang, and D. Yang, “Demonstration of optical microfiber knot resonators,” Appl. Phys. Lett. 88(22), 223501 (2006). [CrossRef]
  17. M. Sumetsky, Y. Dulashko, J. M. Fini, A. Hale, and D. J. DiGiovanni, “The Microfiber Loop Resonator: Theory,Experiment, and Application,” J. Lightwave Technol. 24(1), 242–250 (2006). [CrossRef]
  18. Y. Li and L. Tong, “Mach-Zehnder interferometers assembled with optical microfibers or nanofibers,” Opt. Lett. 33(4), 303–305 (2008). [CrossRef] [PubMed]
  19. K. Huang, S. Yang, and L. Tong, “Modeling of evanescent coupling between two parallel optical nanowires,” Appl. Opt. 46(9), 1429–1434 (2007). [CrossRef] [PubMed]
  20. G. H. Wang, P. Shum, G. B. Ren, X. Yu, J. J. Hu, and C. Lin, “Theoretical investigation of nanowaveguide-based optical coupler using mode expansion transfer matrix,” Microw. Opt. Technol. Lett. 52(5), 1123–1129 (2010). [CrossRef]
  21. L. Tong, J. Lou, and E. Mazur, “Single-mode guiding properties of subwavelength-diameter silica and silicon wire waveguides,” Opt. Express 12(6), 1025–1035 (2004). [CrossRef] [PubMed]
  22. M. Sumetsky, “How thin can a microfiber be and still guide light?” Opt. Lett. 31(7), 870–872 (2006). [CrossRef] [PubMed]
  23. Y. Jung, G. Brambilla, and D. J. Richardson, “Broadband single-mode operation of standard optical fibers by using a sub-wavelength optical wire filter,” Opt. Express 16(19), 14661–14667 (2008). [CrossRef] [PubMed]

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.

Supplementary Material

» Media 1: MOV (639 KB)     

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited