Optical waveguides – Planar optical waveguide
Reexamination Certificate
2007-08-21
2007-08-21
Pak, Sung (Department: 2874)
Optical waveguides
Planar optical waveguide
C385S132000
Reexamination Certificate
active
10547535
ABSTRACT:
In a waveguide element using a photonic crystal including a core formed of a photonic crystal having a refractive index periodicity in at least two directions perpendicular to a propagation direction of an electromagnetic wave and a cladding arranged in contact with the core in order to confine the electromagnetic wave in the core, an incident side phase modulation portion is provided for allowing an electromagnetic wave that is coupled to a band on or near a Brillouin zone boundary in a photonic band structure in the core and propagates in the core to enter the core.
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Asai Takahiro
Kittaka Shigeo
Nara Masatoshi
Oya Kazuaki
Tsunetomo Keiji
Hamre Schumann Mueller & Larson P.C.
Nippon Sheet Glass Company Limited
Pak Sung
Petkovsek Daniel
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