OSA's Digital Library

Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 5 — Mar. 6, 2006
  • pp: 1982–1995

The impact of elliptical deformations for optimizing the performance of dual-core fluorine-doped photonic crystal fiber couplers

Shailendra K. Varshney, Nikolaos J. Florous, Kunimasa Saitoh, and Masanori Koshiba  »View Author Affiliations


Optics Express, Vol. 14, Issue 5, pp. 1982-1995 (2006)
http://dx.doi.org/10.1364/OE.14.001982


View Full Text Article

Enhanced HTML    Acrobat PDF (1932 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

In this paper we study the impact of elliptically-deformed features such as cladding air-holes and elliptically-modulated cores, as ingredients for optimizing the coupling characteristics of dual-core fluorine-doped photonic crystal fiber (PCF) couplers. We provide a detailed numerical investigation by using a trial and error approach for optimizing the propagation characteristics of fluorine-doped PCF couplers. Typical characteristics of the newly proposed PCF coupler structure are: wavelength-flattened coupling characteristics between 0.7 μm and 1.6 μm wavelength range, coupling efficiency of 50±1 % from 0.9 μm to 1.6 μm, and a reasonably small coupling length of 1.3 cm. In addition we have elaborately derived the design parameters so that our proposed dual-core PCF coupler exhibits polarization-insensitive characteristics verified by using a full-vectorial beam propagation method. The proposed dual-core PCF can be effectively used as a 3-dB coupler, over a wide wavelength range.

© 2006 Optical Society of America

OCIS Codes
(060.2330) Fiber optics and optical communications : Fiber optics communications
(060.2430) Fiber optics and optical communications : Fibers, single-mode

ToC Category:
Photonic Crystal Fibers

History
Original Manuscript: January 3, 2006
Revised Manuscript: February 15, 2006
Manuscript Accepted: February 19, 2006
Published: March 6, 2006

Citation
Shailendra K. Varshney, Nikolaos J. Florous, Kunimasa Saitoh, and Masanori Koshiba, "The impact of elliptical deformations for optimizing the performance of dual-core fluorine-doped photonic crystal fiber couplers," Opt. Express 14, 1982-1995 (2006)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-14-5-1982


Sort:  Author  |  Year  |  Journal  |  Reset  

References

  1. T. A. Birks, J. C. Knight, and P. St. J. Russell, "Endlessly single-mode photonic crystal fiber," Opt. Lett. 22, 961-963 (1997). [CrossRef] [PubMed]
  2. A. Bjarklev, J. Broeng, and A. S. Bjarklev, Photonic Crystal Fibres, (Kulwer Academic Publishers, 2003). [CrossRef]
  3. B. J Mangan, J. Arriaga, T. A. Birks, J. C. Knight, and P. St. J. Russell, "Fundamental-mode cutoff in a photonic crystal fiber with a depressed-index core," Opt. Lett. 26, 1469-1471 (2001). [CrossRef]
  4. J. Laegsgaard, O. Bang, and A. Bjarklev, "Photonic crystal fiber design for broadband directional coupling," Opt. Lett. 29, 2473-2475 (2004). [CrossRef] [PubMed]
  5. B. J. Mangan, J. C. Knight, T. A. Birks, P. St. J. Russell, and A. H. Greenaway, "Experimental study of dual-core photonic crystal fiber," Electron. Lett. 36, 1358-1359 (2000). [CrossRef]
  6. F. Fogli, L. Saccomandi, P. Bassi, G. Bellanca, and S. Trillo, "Full vectorial BPM modeling of index-guiding photonic crystal fibers and couplers," Opt. Express 10, 54-59 (2002). http://opticsexpress.osa.org/abstract.cfm?URI=OPEX-10-1-54. [PubMed]
  7. K. Saitoh, Y. Sato, and M. Koshiba, "Coupling characteristics of dual-core photonic crystal fiber couplers," Opt. Express 11, 3188-3195 (2003). http://opticsexpress.osa.org/abstract.cfm?URI=OPEX-1124-3188. [CrossRef] [PubMed]
  8. W. E. P. Padden, M. A. van Eijkelenborg, A. Argyros, and N. A. Issa, "Coupling in twin-core microstructured polymer optical fiber," Appl. Phys. Lett. 84, 1689-1691 (2004). [CrossRef]
  9. L. Zhang and C. Yang, "Polarization-dependent coupling in twin-core photonic crystal fibers," J. Lightwave Technol. 22, 1367-1373 (2004). [CrossRef]
  10. N. Florous, K. Saitoh, and M. Koshiba, "A novel approach for designing photonic crystal fiber splitters with polarization-independent propagation characteristics," Opt. Express 13, 7365-7373 (2005). http://opticsexpress.osa.org/abstract.cfm?URI=OPEX=13-19-7365. [CrossRef] [PubMed]
  11. K. Saitoh and M. Koshiba, "Full-vectorial imaginary-distance beam propagation method based on a finite element scheme: Application to photonic crystal fibers," IEEE J. Quantum Electron. 38, 927-933 (2002). [CrossRef]
  12. K. Saitoh and M. Koshiba, "Full-vectorial finite element beam propagation method with perfectly matched layers for anisotropic waveguides," J. Lightwave Technol. 19, 405-413 (2001). [CrossRef]
  13. M. J. Steel, and R. M. Osgood, "Polarization and dispersive properties of elliptical-hole photonic crystal fibers," J. Lightwave Technol. 19, 495-502 (2001). [CrossRef]
  14. N. Florous and M. Koshiba, "Virtual boundary method for the analysis of elliptically cross-sectional photonic crystal fibers with elliptical pores," J. Lightwave Technol. 23, 1763-1773 (2005). [CrossRef]
  15. F. Poletti, V. Finazzi, T. M. Monro, N. G.R. Broderick, V. Tse, and D. J. Richardson, "Inverse design and fabrication tolerances of ultra-flattened dispersion holey fibers," Opt. Express 13, 3728-3736 (2005). http://opticsexpress.osa.org/abstract.cfm?URI=OPEX-13-10-3728. [CrossRef] [PubMed]
  16. N. A. Issa, M. A. Eijkelenborg, M. Fellew, F. Cox, G. Henry, and C. J. Large, "Fabrication and study of microstructured optical fibers with elliptical holes," Opt. Lett. 29, 1336-1338 (2004). [CrossRef] [PubMed]
  17. T. Yamamoto, H. Kubota, S. Kawanishi, M. Tanaka, and S. Yamaguchi, "Super continuum generation at 1.55 μm in a dispersion-flattened polarization-maintaining photonic crystal fiber," Opt. Express 11, 1537-1540 (2003). http://opticsexpress.osa.org/abstract.cfm?URI=OPEX-13-10-3728. [CrossRef] [PubMed]
  18. S. G. Leon-Saval, T. A. Birks, N. Y. Joly, A. K. George, W. J. Wadsworth, G. Kakarantzas, and P. St. J. Russell, "Splice-free interfacing of photonic crystal fibers," Opt. Lett. 30, 1629-1631 (2005). [CrossRef] [PubMed]
  19. H. C. Nguyen, B. T. Kuhlmey, M. J. Steel, C. L. Smith, E. C. Magi, R. C. McPhedran, and B. J. Eggleton, "Leakage of the fundamental mode in photonic crystal fiber tapers," Opt. Lett. 30, 1123-1125 (2005). [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.


« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited