US 8,712,204 B2Granted

Optical modulation element

AssigneeNGK Insulators, Ltd.

InventorsJungo Kondo, Yuichi Iwata, Tetsuya Ejiri

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Abstract

An optical modulation device 1 includes a supporting body 2 including a pair of grooves 2b, 2c and a protrusion 2d between the grooves, a ridge par 6 including a channel type optical waveguide capable of multi mode propagation, a first side plate part 3A formed in a first side of the ridge part 6, a second side plate part 3B formed in a second side of the ridge part, a first adhesive layer 4A adhering the first side plate part 3A and the supporting body 2, a second adhesive layer 4B adhering the second side plate part 3B and the supporting body 2, and a third adhesive layer 4C adhering the ridge part 6 and the protrusion 2d. The device 1 further includes a first electrode 7A provided on a side face 6b of the ridge part on the first groove side, and a side face 3b and an upper face 3c of the first side plate part, and a second electrode 7B provided on a side face 6c of the ridge part 6 in the second groove side, the second groove 2c and a side face 3b and an upper face 3c of the second side plate part 3B. The first electrode 7A and the second electrode 7B apply a modulation voltage modulating light propagating in the channel type optical waveguide.

Claims4

Dependent claims

An optical modulation device comprising:

a supporting body comprising a first groove, a second groove, and a protrusion between said grooves;
a ridge part comprising an electro-optic crystal and a channel type optical waveguide propagating light in multi mode formed therein;
a first side plate part comprising an electro-optic crystal and formed in a first side of said ridge part;
a second side plate part comprising an electro-optic crystal and formed in a second side of said ridge part;
a first adhesive layer adhering said first side plate part and said supporting body;
a second adhesive layer adhering said second side plate part and said supporting body;
a third adhesive layer adhering said ridge part and said protrusion;
a first electrode provided on a side face of said ridge part in a side of said first groove, said first groove, a side face of said first side plate part and an upper face of said first side plate part;
and
a second electrode provided on a side face of said ridge part in a side of said second groove, said second groove, a side face of said second side plate part and an upper face of said second side plate part;
wherein said first electrode and said second electrode apply a modulation voltage modulating said light propagating in said channel type optical waveguide.

8 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/021,148Filed 9 Sep 2013 · continuation
Priority: JP 2011-05873217 Mar 2011
Published: US 2014/0010493 A19 Jan 2014
Granted: 29 Apr 2014
Term ends: Not estimatedThe source records don’t support an estimate.

Classification17 codes

G02F 1/035
Based on ceramics or electro-optical crystals, e.g. exhibiting Pockels effect or Kerr effect: in an optical waveguide structure
G02B 6/122
Of the integrated circuit kind: basic optical elements, e.g. light-guiding paths
G02F 1/2255
In an optical waveguide structure: controlled by a high-frequency electromagnetic component in an electric waveguide structure
G01N 15/1434
Optical investigation techniques, e.g. flow cytometry: optical arrangements