Abstract
We report the study of 2-D photonic-crystal waveguide arrays (PCWA) composed of
<i>N</i> identical waveguides coupled evanescently with each other. The coupling
properties of the waveguide modes are investigated using coupled-mode theory and
finite-difference time domain method. One straightforward application of such an
analysis is to route input power from a central waveguide to side waveguides. As a
result, appropriate designs of PCWAs may permit the realization of efficient, compact
and novel devices. For instance, we show that power dividers, switchers, and
Mach–Zehnder interferometers can be feasible using <i>N</i> =3 channels. On the other hand,
<i>N</i> =5 waveguides can divide the input power by 1/4 at a distance of approximately 37.2
<i>µ</i>m. Waveguide bends and Y-type junctions are used heavily for power
transfer but they are prone to scattering losses; hence, lowering the transmission
efficiency. They can be eliminated by means of PCWAs in the design of optical power
distribution through photonic circuits.
© 2009 IEEE
PDF Article
More Like This
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 Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Login to access Optica Member Subscription