Disclosed is a photonic band-gap crystal waveguide having the physical
dimension of the photonic crystal lattice and the size of the defect
selected to provide for optimum mode power confinement to the defect. The
defect has a boundary which has a characteristic numerical value
associated with it. The ratio of this numerical value to the pitch of the
photonic crystal is selected to avoid surface modes found to exist in
certain configurations of the photonic band-gap crystal waveguide.
Embodiments in accord with the invention having circular and hexagonal
defect cross sections are disclosed and described. A method of making the
photonic band-gap crystal waveguide is also disclosed and described.
