Back to results
US 5,349,466 AGranted
Frequency doubler including an electrically controlled optical index network
AssigneeThomson-CSF
InventorsDominique Delacourt, Michel Papuchon, Eric Lallier, Florence Armani
Life of this patent
Estimating the term…
Abstract
The device according to the invention is a frequency doubler comprising an optical index network which can be electrically controlled by two continuous electrodes, the network being created by the presence of (+P) polarization domains periodically separated by (-P) polarization domains, the electrodes being used to electrooptically compensate for variations in the index between the (+P) domains and (-P) domains.
Claims27
A frequency doubler comprising:
- a material having a locally reversed ferroelectric polarization to create alternating (+P) domains and (-P) domains;
- a first continuous electrode formed on the material above the alternating (+P) domains and (-P) domains for inducing an electric field in the alternating (+P) domains and (-P) domains;
- and
- a second electrode formed on the material.
1 more element
A frequency doubler comprising:
- a material having a locally reversed ferroelectric polarization to create alternating (+P) domains and (-P) domains;
- a first continuous electrode formed directly on the material above the alternating (+P) domains and (-P) domains to contact the alternating (+P) domains and (-P) domains;
- and
- a second electrode formed on the material.
1 more element
A frequency doubler comprising:
- a material having a locally reversed ferroelectric polarization to create alternating (+P) domains and (-P) domains;
- a first continuous electrode formed on a first face of the material above the alternating (+P) domains and (-P) domains;
- and
- a second electrode formed on the first face of the material, the second electrode being parallel to the first continuous electrode.
1 more element
Dependencies are inferred from the claim text.