OSA's Digital Library

Optics Express

Optics Express

  • Vol. 17, Iss. 7 — Mar. 30, 2009
  • pp: 5273–5278

Optical microfiber coupler for broadband single-mode operation

Yongmin Jung, Gilberto Brambilla, and David J. Richardson  »View Author Affiliations

Optics Express, Vol. 17, Issue 7, pp. 5273-5278 (2009)

View Full Text Article

Enhanced HTML    Acrobat PDF (682 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



We present a broadband single-mode bi-conical microfiber coupler (MFC) with a specifically designed transition region that effectively suppresses any higher-order modes present at the input fiber and provides efficient power splitting into the fundamental mode at the two output ports. As a practical example, single-mode 3-dB splitting operation over a broad spectral window (400~1700 nm) was demonstrated for a very thin taper waist (~1.5μm) MFC made from conventional telecom optical fibers.

© 2009 Optical Society of America

OCIS Codes
(060.2340) Fiber optics and optical communications : Fiber optics components
(220.4000) Optical design and fabrication : Microstructure fabrication
(230.1150) Optical devices : All-optical devices
(220.4241) Optical design and fabrication : Nanostructure fabrication

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: January 26, 2009
Revised Manuscript: March 13, 2009
Manuscript Accepted: March 13, 2009
Published: March 18, 2009

Yongmin Jung, Gilberto Brambilla, and David J. Richardson, "Optical microfiber coupler for broadband single-mode operation," Opt. Express 17, 5273-5278 (2009)

Sort:  Author  |  Year  |  Journal  |  Reset  


  1. L. Tong, R. R. Gattass, J. B. Ashcom, S. He, J. Lou, M. Shen, I. Maxwell and E. Mazur, "Subwavelength-diameter silica wires for low-loss optical wave guiding," Nature 426, 816-819 (2003). [CrossRef] [PubMed]
  2. G. Brambilla, V. Finazzi, and D. J. Richardson, "Ultra-low-loss optical fiber nanotapers," Opt. Express 12, 2258-2263 (2004). http://www.opticsinfobase.org/abstract.cfm?URI=oe-12-10-2258. [CrossRef] [PubMed]
  3. M. Sumetsky, Y. Dulashko, P. Domachuk, and B. J. Eggleton, "Thinnest optical waveguide: experimental test," Opt. Lett. 32, 754-756 (2007). [CrossRef] [PubMed]
  4. D. -I. Yeom, E. C. Mägi, M. R. E. Lamont, M. A. F. Roelens, L. Fu, and B. J. Eggleton, "Low-threshold supercontinuum generation in highly nonlinear chalcogenide nanowires," Opt. Lett. 33, 660-662 (2008) http://www.opticsinfobase.org/abstract.cfm?URI=ol-33-7-660 [CrossRef] [PubMed]
  5. V. I. Balykin, K. Hakuta, F. Le Kien, J. Q. Liang, and M. Morinaga, "Atom trapping and guiding with a subwavelength-diameter optical fiber," Phys. Rev. A 70, 011401 (2004). [CrossRef]
  6. F. Xu, P. Horak, and G. Brambilla, "Optical microfiber coil resonator refractometric sensor," Opt. Express. 15, 7888-7893 (2007). http://www.opticsinfobase.org/abstract.cfm?URI=oe-15-12-7888. [CrossRef] [PubMed]
  7. M. Sumetsky, Y. Dulashko, and A. Hale, "Fabrication and study of bent and coiled free silica nanowires: Self-coupling microloop optical interferometer," Opt. Express 12, 3521-3531 (2004) http://www.opticsinfobase.org/abstract.cfm?URI=oe-12-15-3521 [CrossRef] [PubMed]
  8. J. C. Knight, G. Cheung, F. Jacques, and T. A. Birks, "Phase-matched excitation of whispering-gallery-mode resonances by a fiber taper," Opt. Lett. 22, 1129-1131 (1997). [CrossRef] [PubMed]
  9. Y. Jung, G. Brambilla, D. J. Richardson, "Broadband single-mode operation of standard optical fibers by using a sub-wavelength optical wire filter," Opt. Express 16, 14661-14667 (2008). http://www.opticsinfobase.org/abstract.cfm?URI=oe-16-19-14661. [CrossRef] [PubMed]
  10. J. Nilsson, W. A. Clarkson, R. Selvas, J. K. Sahu, P. W. Turner, S. -U. Alam, and A. B. Grudinin, "High-power wavelength-tunable cladding-pumped rare-earth-doped silica fiber lasers," Opt. Fiber Technol. 10, 5-30 (2004). [CrossRef]
  11. O. S. Wolfbeis, "Fiber-optic chemical sensors and biosensors," Anal. Chem. 74, 2663-2678 (2002). [CrossRef] [PubMed]
  12. B. A. Flusberg, E. D. Cocker, W. Piyawattanametha, J. C. Jung, E. L. M. Cheung, and M. J. Schnitzer, "Fiber-optic fluorescence imaging," Nature Methods 2, 941-950 (2005). [CrossRef] [PubMed]
  13. L. Tong, J. Lou, E. Mazur, "Single-mode guiding properties of subwavelength-diameter silica and silicon wire waveguides," Opt. Express 12, 1025-1035 (2004). http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-12-6-1025 [CrossRef] [PubMed]
  14. K. Okamoto, Fundamentals of Optical Waveguides (Elsevier Academic, London, 2006).
  15. Francois Gonthier, "Fabrication of multiplexing and demultiplexing single-mode fiber optic couplers," U.S. Patent No. 6,763,685 (2004).
  16. B. S. Kawasaki, K. O. Hill, and R. G. Lamont, "Biconical-taper single-mode fiber coupler," Opt. Lett. 6, 327-328 (1981). [CrossRef] [PubMed]
  17. F. Bilodeau, K. O. Hill, S. Faucher, and D. C. Johnson, "Low-loss highly overcoupled fused couplers: Fabrication and sensitivity to external pressure," J. Lightwave Technol. 6, 1476- 1482 (1988). [CrossRef]
  18. M. S. Yataki, D. N. Payne, M. P. Varnham, "All-fibre polarizing beamsplitter," Electron. Lett. 21, 249-251 (1985). [CrossRef]
  19. J. D. Love and M. Hall, "Polarization modulation in long couplers," Electron. Lett. 21, 519-625 (1985).

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.

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited