Optical waveguides – Planar optical waveguide
Reexamination Certificate
2006-11-14
2006-11-14
Lee, John D. (Department: 2874)
Optical waveguides
Planar optical waveguide
C385S125000, C385S131000
Reexamination Certificate
active
07136561
ABSTRACT:
A tetragonal lattice is formed by first cylindrical structural members, and a photonic crystal has a periodical structure formed by a periodical arrangement of such tetragonal lattice. A distance between center points of the first cylindrical structural members is taken as a unit length a, which constitutes a lattice constant of the tetragonal lattice. At an approximate center of the tetragonal lattice, a cylindrical structural member is provided, and a dielectric area is provided around the first cylindrical structural members and the second cylindrical structural member. This structure allows the formation of a photonic band gap for a TE wave and a photonic band gap for a TM wave in a certain common frequency region, thereby forming a complete band gap.
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Lee John D.
Peace Rhonda S.
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