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Investigation of physical mechanisms in coupling photonic crystal waveguiding structures

Badieirostami, Majid and Momeni, Babak and Soltani, Mohammad and Adibi, Ali and Xu, Yong and Lee, Reginald K. (2004) Investigation of physical mechanisms in coupling photonic crystal waveguiding structures. Optics Express, 12 (20). pp. 4781-4789. ISSN 1094-4087. http://resolver.caltech.edu/CaltechAUTHORS:BADoe04

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Abstract

We explain the fundamental physical mechanisms involved in coupling triangular lattice photonic crystal waveguides to conventional dielectric slab waveguides. We show that the two waveguides can be efficiently coupled outside the mode gap frequencies. We especially focus on the coupling of the two structures within the mode gap frequencies and show for the first time that the diffraction from the main photonic crystal structure plays an important role on the reflection of power back into the slab waveguide. The practical importance of this effect and possible strategies to modify it are also discussed.


Item Type:Article
Additional Information:Received 24 August 2004; revised 20 September 2004; accepted 20 September 2004. This work was supported by Air Force Office of Scientific Research (G. Pomrenke) and by National Science Foundation (F. Bartolli).
Subject Keywords:OCIS codes: (050.0050) Diffraction and gratings; (250.5300) Photonic integrated circuits and (230.7370) Waveguides
Record Number:CaltechAUTHORS:BADoe04
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:BADoe04
Alternative URL:http://www.opticsexpress.org/abstract.cfm?URI=OPEX-12-20-4781
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:262
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:13 May 2005
Last Modified:26 Dec 2012 08:39

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