Fiber Optics and Optical Communication

Intensity distributions and cutoff frequencies of linearly polarized modes for a step-index elliptical optical fiber

[+] Author Affiliations
Ivan Gómez-Castellanos

Tecnológico de Monterrey (ITESM),Campus Monterrey, Centro de Electrónica y Telecomunicaciones, Av. Eugenio Garza Sada 2501 Sur, CP 64849, Monterrey, N.L. México

Ramón M. Rodríguez-Dagnino

Tecnológico de Monterrey (ITESM),Campus Monterrey, Centro de Electrónica y Telecomunicaciones, Av. Eugenio Garza Sada 2501 Sur, CP 64849, Monterrey, N.L. México

Opt. Eng. 46(4), 045003 (April 10, 2007). doi:10.1117/1.2719698
History: Received April 25, 2006; Revised September 11, 2006; Accepted October 21, 2006; Published April 10, 2007
Text Size: A A A

Intensity distributions of linearly polarized (LP) propagation modes of several orders are plotted for a step-index elliptical-core dielectric waveguide. A simplified characteristic equation is obtained through the weakly guiding approximation, which can be used to find the propagation constants and the cutoff frequencies of each LP mode. These constants are then applied to the solution of the scalar wave equation, which is expanded in series of ordinary and modified Mathieu functions, to obtain the intensity patterns of the LP modes. Results are compared with previous work, and it is found that when the elliptical core tends to a circle (ratio of semimajor to semiminor axis equal to 1.0001) our cutoff frequencies are closer to the LP-mode cutoffs of the circular fiber than are the cutoffs obtained in other papers on elliptical fibers.

Figures in this Article
© 2007 Society of Photo-Optical Instrumentation Engineers

Citation

Ivan Gómez-Castellanos and Ramón M. Rodríguez-Dagnino
"Intensity distributions and cutoff frequencies of linearly polarized modes for a step-index elliptical optical fiber", Opt. Eng. 46(4), 045003 (April 10, 2007). ; http://dx.doi.org/10.1117/1.2719698


Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

PubMed Articles
Advertisement


 

  • Don't have an account?
  • Subscribe to the SPIE Digital Library
  • Create a FREE account to sign up for Digital Library content alerts and gain access to institutional subscriptions remotely.
Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).
Access This Proceeding
Sign in or Create a personal account to Buy this article ($15 for members, $18 for non-members).
Access This Chapter

Access to SPIE eBooks is limited to subscribing institutions and is not available as part of a personal subscription. Print or electronic versions of individual SPIE books may be purchased via SPIE.org.