Analytical design of photonic band-gap fibers and their dispersion characteristics

• Published in: Optik (Stuttgart) Vol. 116; no. 4; pp. 169 - 174
• Main Authors: Ibrahim, Abdel-Baset M.A., Choudhury, P.K., Alias, M.S.B.
• Format: Journal Article
• Language: English
• Published: Jena Elsevier GmbH 01.01.2005; Elsevier
• Subjects: Applied sciences; Band-gap fibers; Circuit properties; Electric, optical and optoelectronic circuits; Electronics; EM wave propagation; Exact sciences and technology; Fundamental areas of phenomenology (including applications); Integrated optics. Optical fibers and wave guides; Optical and optoelectronic circuits; Optical materials; Optics; Optoelectronic devices; Photonic bandgap materials; Physics; Propagation, scattering, and losses; solitons; Band-gap fibers; Optoelectronic devices; EM wave propagation; Optoelectronics; Photonic band gap; Refraction index; Theoretical study; Layer thickness; Optical fiber dispersion; Design; Electromagnetic wave propagation; Photonic crystal; Bandwidth; Bloch equation; Optical fiber
• ISSN: 0030-4026; 1618-1336
• DOI: 10.1016/j.ijleo.2005.01.008

The paper essentially deals with the analysis of photonic band-gap fibers in analogy with the electron wave motion in periodic crystal lattice. As such, the analyses are based on Bloch formulation. The dispersion characteristics of such fibers are presented by considering some illustrative values of design parameters. The effect of design parameters on the dispersion characteristics is also presented in terms of the variation of widths of allowed and forbidden bands of band-gap fibers. It is found that the number of allowed bands increases with the increase in difference between refractive indices of different layers. Further, widths of the allowed and forbidden bands increase with the increase in layer thickness.