Abstract

The present paper describes a novel systematic solution to the problem of controlling the chromatic dispersion and dispersion slope in photonic crystal fibers (PCFs), using a structurally-simple PCF with a defected-core. By adjusting the size of the central air-hole defect we can successfully design an ultra-flattened PCF with low confinement losses, as well as small effective mode area. The design strategy is based on the mutual cancellation between the waveguide and the material dispersions of the PCF, by varying the size of the central defected region in the core. The verification of the ultra-flattened chromatic dispersion property of the proposed PCF is ensured with an accurate full-vector finite element method with anisotropic perfectly matched layers. The ultra-flattened dispersion feature, as well as the low confinement losses and the small effective mode area are the main advantages of the proposed PCF structure, making it suitable as a chromatic dispersion controller dispersion compensator, or as candidate for nonlinear optical applications.

© 2005 Optical Society of America

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IEEE J. Quantum Elencron (1)

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 Elencron. 38, 927-933 (2002).

IEEE. Photon. Technol. Lett. (1)

T. L. Wu and C. H. Chao, �??A novel ultraflattened dispersion photonic crystal fiber,�?? IEEE. Photon. Technol. Lett. 17, 67-69 (2005).
[CrossRef]

J. Opt. Soc. Am. B (1)

Nature (1)

J. C. Knight, �??Photonic crystal fibers,�?? Photonic crystal fibers Nature 424, 847-851 (2003).
[CrossRef]

Opt. Express (5)

A. Ferrando, E. Silvestre, P. Andres, J. J. Miret, and M. V. Andres, �??Designing the properties of dispersion-flattened photonic crystal fibers,�?? Opt. Express 9, 687-697 (2001), <a href="http://www.opticsexpress.org/abstract.cfm?URI=OPEX-9-13-687">http://www.opticsexpress.org/abstract.cfm?URI=OPEX-9-13-687</a>

W. H. Reeves, J. C. Knight, P. St. J. Russell, and P. J. Roberts, �??Demonstration of ultra-flattened dispersion in photonic crystal fibers,�?? Opt. Express 10, 609-613 (2002), <a href="http://www.opticsexpress.org/abstract.cfm?URI=OPEX-9-13-687">http://www.opticsexpress.org/abstract.cfm?URI=OPEX-9-13-687</a>

K. Saitoh, M. Koshiba, T. Hasegawa, and E. Sasaoka, �??Chromatic dispersion control in photonic crystal fibers: application to ultra-flattened dispersion,�?? Opt. Express 11, 843-852 (2003), <a href="http://www.opticsexpress.org/abstract.cfm?URI=OPEX-11-08-843">http://www.opticsexpress.org/abstract.cfm?URI=OPEX-11-08-843</a>

M. D. Nielsen, C. Jacobsen, N. A. Mortensen, J. R. Folkenberg, and H. R. Simonsen, �??Low-loss photonic crystal fibers for transmission system and their dispersion properties,�?? Opt. Express 12, 1372-1376 <a href=" http://www.opticsexpress.org/abstract.cfm?URI=OPEX-11-24-1372"> http://www.opticsexpress.org/abstract.cfm?URI=OPEX-11-24-1372</a>
[CrossRef]

K. Saitoh and M. Koshiba, �??Highly nonlinear dispersion-flattened photonic crystal fibers for supercontinuum generation in a telecommunication window,�?? Opt. Express 12, 2027-2032 (2004), <a href="http://www.opticsexpress.org/abstract.cfm?URI=OPEX-12-10-2027">http://www.opticsexpress.org/abstract.cfm?URI=OPEX-12-10-2027</a>
[CrossRef]

Opt. Lett. (3)

Other (2)

J. A. Buck, Fundamentals of Optical Fibers, Wiley-Interscience (2004).

D. Davidson, Optical-Fiber Transmission (E. E. Bert Basch , ed., Howard W. Sams & Co, 1987).

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