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Journal of the Optical Society of America A

Journal of the Optical Society of America A


  • Vol. 15, Iss. 12 — Dec. 1, 1998
  • pp: 3067–3075

Analysis and design of an endlessly single-mode finned dielectric waveguide

E. Silvestre, P. St. J. Russell, T. A. Birks, and J. C. Knight  »View Author Affiliations

JOSA A, Vol. 15, Issue 12, pp. 3067-3075 (1998)

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We report what is to our knowledge a novel dielectric waveguiding structure consisting of periodic arrays of parallel planar fins placed on both sides of and perpendicular to a central planar core. This structure is analyzed, and the behavior of its bound modes is investigated. This finned guide exhibits many of the same features as a recently reported all-silica photonic crystal fiber. For example, it can be designed to support only the fundamental transverse bound mode over the entire electromagnetic frequency spectrum. This new class of endlessly single-mode waveguide may prove to have important applications in many areas of optoelectronics.

© 1998 Optical Society of America

OCIS Codes
(230.7390) Optical devices : Waveguides, planar
(310.2790) Thin films : Guided waves
(350.2770) Other areas of optics : Gratings

Original Manuscript: March 18, 1998
Revised Manuscript: June 8, 1998
Manuscript Accepted: August 21, 1998
Published: December 1, 1998

E. Silvestre, P. St. J. Russell, T. A. Birks, and J. C. Knight, "Analysis and design of an endlessly single-mode finned dielectric waveguide," J. Opt. Soc. Am. A 15, 3067-3075 (1998)

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  1. J. C. Knight, T. A. Birks, P. St. J. Russell, D. M. Atkin, “All-silica single-mode optical fiber with photonic crystal cladding,” Opt. Lett. 21, 1547–1549 (1996);errata, Opt. Lett. 22, 484–485 (1997). [CrossRef] [PubMed]
  2. T. A. Birks, J. C. Knight, P. St. J. Russell, “Endlessly single-mode photonic crystal fiber,” Opt. Lett. 22, 961–963 (1997). [CrossRef] [PubMed]
  3. J. C. Knight, T. A. Birks, P. St. J. Russell, J. G. Rarity, “Bragg scattering from an obliquely illuminated photonic crystal fiber,” Appl. Opt. 37, 449–452 (1998). [CrossRef]
  4. Although the photonic crystal fiber can support modes trapped by Bragg scattering, this requires a full two-dimensional photonic bandgap, which is possible only at air-filling fractions >40%. [See T. A. Birks, P. J. Roberts, P. St. J. Russell, D. M. Atkin, T. J. Shepherd, “Full 2-D photonic band gaps in silica/air structures,” Electron. Lett. 31, 1941–1942 (1995).] Thus Bragg modes in photonic crystal fibers with smaller air-filling fractions will always be leaky. [CrossRef]
  5. D. M. Atkin, P. St. J. Russell, T. A. Birks, P. J. Roberts, “Photonic band structure of guided Bloch modes in high index films fully etched through with periodic microstructure,” J. Mod. Opt. 43, 1035–1053 (1996). [CrossRef]
  6. P. St, J. Russell, D. M. Atkin, T. A. Birks, “Bound modes of photonic crystal waveguides,” in Quantum Optics in Wavelength Scale Structures, J. G. Rarity, C. Weisbuch, eds. (Kluwer Academic, Dordrecht, The Netherlands, 1996).
  7. P. St, J. Russell, T. A. Birks, F. D. Lloyd-Lucas, “Photonic Bloch waves and photonic band gaps,” in Confined Electrons and Photons: New Physics and Applications, E. Burstein, C. Weisbuch, eds. (Plenum, New York, 1995), pp. 585–633.

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