Optical waveguides – Temporal optical modulation within an optical waveguide – Electro-optic
Reexamination Certificate
2011-07-05
2011-07-05
Ullah, Akm E (Department: 2874)
Optical waveguides
Temporal optical modulation within an optical waveguide
Electro-optic
C385S014000, C359S245000
Reexamination Certificate
active
07974501
ABSTRACT:
An optical modulator24has a supporting substrate5, a modulating substrate11made of an electro-optical material, an optical waveguide12provided on the side of a first main surface30of the modulating substrate11, and an adhesion layer6adhering a second main surface31of the modulating substrate11onto the supporting substrate5. The modulating substrate11has a high-frequency interaction portion11capplying a voltage on the optical waveguide12to modulate propagating light, an incident portion11ainputting light to the optical waveguide, and an outgoing portion11boutputting light from the optical waveguide. The high-frequency interaction portion11cis recessed on the first main surface30of the modulating substrate11with respect to the incident and outgoing portions11aand11b. The high-frequency interaction portion11chas a thickness smaller than the those of the incident and outgoing portions11aand11b.
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Aoki Kenji
Ejiri Tetsuya
Hamajima Akira
Kondo Jungo
Mitomi Osamu
Cermak Nakajima LLP
Nakajima Tomoko
NGK Insulators Ltd.
Ullah Akm E
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