OSA's Digital Library

Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 19 — Sep. 10, 2012
  • pp: 21749–21757

Intermodal coupling of supermodes in a twin-core photonic crystal fiber and
its application as a pressure sensor

Zhengyong Liu, Ming-Leung Vincent Tse, Chuang Wu, Daru Chen, Chao Lu, and Hwa-Yaw Tam  »View Author Affiliations

Optics Express, Vol. 20, Issue 19, pp. 21749-21757 (2012)

View Full Text Article

Enhanced HTML    Acrobat PDF (3018 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



In this paper, we experimentally demonstrated the fabrication and hydrostatic pressure characteristics of a twin-core photonic crystal fiber (TC-PCF). Mode couplings in the TC-PCF for x- and y-polarizations were analyzed simultaneously using group effective index of guiding modes. The output spectrum of the TC-PCF was modulated due to the combined couplings of the two polarizations. To the best of our knowledge, it is the first time to measure hydrostatic pressure through the dual-polarization mode coupling in a TC-PCF. The measured sensitivity of the pressure sensor was −21pm/MPa. The length of the TC-PCF used for pressure measurement was 20cm, which is much shorter than pressure sensor based on PM-PCF, and does not require any external polarizing components, meaning that it is a good candidate for compact pressure sensor.

© 2012 OSA

OCIS Codes
(060.2280) Fiber optics and optical communications : Fiber design and fabrication
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(060.5295) Fiber optics and optical communications : Photonic crystal fibers
(280.5475) Remote sensing and sensors : Pressure measurement

ToC Category:

Original Manuscript: July 5, 2012
Revised Manuscript: August 21, 2012
Manuscript Accepted: August 29, 2012
Published: September 6, 2012

Zhengyong Liu, Ming-Leung Vincent Tse, Chuang Wu, Daru Chen, Chao Lu, and Hwa-Yaw Tam, "Intermodal coupling of supermodes in a twin-core photonic crystal fiber and
its application as a pressure sensor," Opt. Express 20, 21749-21757 (2012)

Sort:  Author  |  Year  |  Journal  |  Reset  


  1. P. Russell, “Photonic crystal fibers,” Science299(5605), 358–362 (2003). [CrossRef] [PubMed]
  2. P. Russell, “Photonic-Crystal Fibers,” J. Lightwave Technol.24(12), 4729–4749 (2006). [CrossRef]
  3. J. C. Knight, T. A. Birks, P. S. Russell, and D. M. Atkin, “All-silica single-mode optical fiber with photonic crystal cladding,” Opt. Lett.21(19), 1547–1549 (1996). [CrossRef] [PubMed]
  4. T. A. Birks, J. C. Knight, and P. S. Russell, “Endlessly single-mode photonic crystal fiber,” Opt. Lett.22(13), 961–963 (1997). [CrossRef] [PubMed]
  5. K. Saitoh, M. Koshiba, T. Hasegawa, and E. Sasaoka, “Chromatic dispersion control in photonic crystal fibers: application to ultra-flattened dispersion,” Opt. Express11(8), 843–852 (2003). [CrossRef] [PubMed]
  6. A. Ortigosa-Blanch, J. C. Knight, W. J. Wadsworth, J. Arriaga, B. J. Mangan, T. A. Birks, and P. S. Russell, “Highly birefringent photonic crystal fibers,” Opt. Lett.25(18), 1325–1327 (2000). [CrossRef] [PubMed]
  7. J. C. Knight and D. V. Skryabin, “Nonlinear waveguide optics and photonic crystal fibers,” Opt. Express15(23), 15365–15376 (2007). [CrossRef] [PubMed]
  8. M. L. V. Tse, P. Horak, F. Poletti, N. G. Broderick, J. H. Price, J. R. Hayes, and D. J. Richardson, “Supercontinuum generation at 1.06 mum in holey fibers with dispersion flattened profiles,” Opt. Express14(10), 4445–4451 (2006). [CrossRef] [PubMed]
  9. B. J. Mangan, J. C. Knight, T. A. Birks, P. S. J. Russell, and A. H. Greenaway, “Experimental study of dual-core photonic crystal fibre,” Electron. Lett.36(16), 1358–1359 (2000). [CrossRef]
  10. Z. Wang, T. Taru, T. A. Birks, J. C. Knight, Y. Liu, and J. Du, “Coupling in dual-core photonic bandgap fibers: theory and experiment,” Opt. Express15(8), 4795–4803 (2007). [CrossRef] [PubMed]
  11. W. Yuan, G. E. Town, and O. Bang, “Refractive index sensing in an all-solid twin-core photonic bandgap fiber,” IEEE Sens. J.10(7), 1192–1199 (2010). [CrossRef]
  12. W. E. P. Padden, M. A. van Eijkelenborg, A. Argyros, and N. A. Issa, “Coupling in a twin-core microstructured polymer optical fiber,” Appl. Phys. Lett.84(10), 1689–1691 (2004). [CrossRef]
  13. K. Saitoh, Y. Sato, and M. Koshiba, “Coupling characteristics of dual-core photonic crystal fiber couplers,” Opt. Express11(24), 3188–3195 (2003). [CrossRef] [PubMed]
  14. J. R. Salgueiro and Y. S. Kivshar, “Nonlinear dual-core photonic crystal fiber couplers,” Opt. Lett.30(14), 1858–1860 (2005). [CrossRef] [PubMed]
  15. B. Kim, T.-H. Kim, L. Cui, and Y. Chung, “Twin core photonic crystal fiber for in-line Mach-Zehnder interferometric sensing applications,” Opt. Express17(18), 15502–15507 (2009). [CrossRef] [PubMed]
  16. M. K. Szczurowski, T. Martynkien, G. Statkiewicz-Barabach, W. Urbanczyk, and D. J. Webb, “Measurements of polarimetric sensitivity to hydrostatic pressure, strain and temperature in birefringent dual-core microstructured polymer fiber,” Opt. Express18(12), 12076–12087 (2010). [CrossRef] [PubMed]
  17. M. Xu, L. Reekie, Y. Chow, and J. P. Dakin, “Optical in-fibre grating high pressure sensor,” Electron. Lett.29(4), 398–399 (1993). [CrossRef]
  18. C. Wu, B.-O. Guan, Z. Wang, and X. Feng, “Characterization of Pressure Response of Bragg Gratings in Grapefruit Microstructured Fibers,” J. Lightwave Technol.28(9), 1392–1397 (2010). [CrossRef]
  19. C. Wu, H. Y. Fu, K. K. Qureshi, B.-O. Guan, and H. Y. Tam, “High-pressure and high-temperature characteristics of a Fabry-Perot interferometer based on photonic crystal fiber,” Opt. Lett.36(3), 412–414 (2011). [CrossRef] [PubMed]
  20. H. Y. Fu, C. Wu, M. L. V. Tse, L. Zhang, K. D. Cheng, H. Y. Tam, B. Guan, and C. Lu, “High pressure sensor based on photonic crystal fiber for downhole application,” Appl. Opt.49, 2639–2643 (2010).
  21. T. Chen, R. Chen, C. Jewart, B. Zhang, K. Cook, J. Canning, and K. P. Chen, “Regenerated gratings in air-hole microstructured fibers for high-temperature pressure sensing,” Opt. Lett.36(18), 3542–3544 (2011). [CrossRef] [PubMed]
  22. D. Chen, G. Hu, and L. Chen, “Dual-core photonic crystal fiber for hydrostatic pressure sensing,” IEEE Photon. Technol. Lett.23(24), 1851–1853 (2011). [CrossRef]
  23. M. Szpulak, T. Martynkien, and W. Urbanczyk, “Effects of hydrostatic pressure on phase and group modal birefringence in microstructured holey fibers,” Appl. Opt.43(24), 4739–4744 (2004). [CrossRef] [PubMed]
  24. W.-P. Huang, “Coupled-mode theory for optical waveguides: an overview,” J. Opt. Soc. Am. A11(3), 963–983 (1994). [CrossRef]
  25. M. L. V. Tse, H. Y. Tam, L. B. Fu, B. K. Thomas, L. Dong, C. Lu, and P. K. A. Wai, “Fusion splicing Holey fibers and single-mode fibers: A simple method to reduce loss and increase strength,” IEEE Photon. Technol. Lett.21(3), 164–166 (2009). [CrossRef]

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