Abstract

We propose and numerically analyze a novel mode converter based on two-dimensional photonic crystal waveguides with square arrays of cylindrical dielectric rods in air. The mode converter uses small perturbation defects to decouple various modes in the multimode waveguide, thereby permitting propagation of only one mode at any given frequency, which permits one-to-one mode conversion without exciting unwanted modes. The mode converter can efficiently convert a TM0 mode supported in a single-mode photonic crystal waveguide into a TM2 mode supported in the multimode waveguide that is laterally coupled to the single-mode waveguide section for a wide wavelength range. Influences of different sizes and positions of perturbation rods on the band structure of the multimode waveguide are studied.

© 2005 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Design of a compact mode and polarization converter in three-dimensional photonic crystals

Jian Wang and Minghao Qi
Opt. Express 20(18) 20356-20367 (2012)

Design of large-bandwidth single-mode operation waveguides in silicon three-dimensional photonic crystals using two guided modes

Jiapeng Fu, Aniwat Tandaechanurat, Satoshi Iwamoto, and Yasuhiko Arakawa
Opt. Express 21(10) 12443-12450 (2013)

Broadband single-mode waveguiding in two- and three-dimensional hybrid photonic crystals based on silicon inverse opals

Gaoxin Qiu, Kevin Vynck, David Cassagne, and Emmanuel Centeno
Opt. Express 15(6) 3502-3506 (2007)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (6)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription