Optical device

Details Optical device Optical device

2005-06-06

2009-10-13

Song, Sarah (Department: 2874)

Optical waveguides

Temporal optical modulation within an optical waveguide

Electro-optic

C385S040000

Reexamination Certificate

active

07603002

ABSTRACT:
An optical device having a substrate having an electro-optical effect, an optical waveguide formed in the substrate, and an electric field emission electrode, and an electric field convergence electrode to which an electric field emitted from the electric field emission electrode converges. The optical waveguide is formed such that light propagating through the optical waveguide passes through an area under the electric field emission electrode or an area under the electric field convergence electrode and then passes through a remaining electrode. As a result, even when an interaction length is increased, the optical device acquires (increases) a modulation index appropriate to the increase in interaction length, thereby diminishing a drive voltage.

REFERENCES:
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patent: 6501867 (2002-12-01), Gates et al.
patent: 7088875 (2006-08-01), Sugiyama et al.
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patent: 9-288255 (1997-11-01), None
M. Sugiyama, et al., “Optical Frequency Comb Generation Using LiNbO3Integrated Modulator (2)”, The Institute of Electronics, Information and Communication Engineers: Autumn Conference 2004.
M. Sugiyama, et al. “A Low Drive Voltage LiNbO3Phase and Intensity Integrated Modulator for Optical Frequency Comb Generation and Short Pulse Generation”, ECOC 2004.

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