Electro-optical waveguide element with reduced DC drift phenomen

Details Electro-optical waveguide element with reduced DC drift phenomen Electro-optical waveguide element with reduced DC drift phenomen

1996-08-21

1999-03-02

Sanghavi, Hemang

Optical waveguides

Temporal optical modulation within an optical waveguide

Electro-optic

385 8, 385 10, G02F 1035, G02F 1295

Patent

active

058781757

ABSTRACT:
An electro-optical waveguide element with reduced DC drift phenomena is presented. The waveguide element is made up of an optical waveguide formed on a substrate possessing electro-optical effects, at least a pair of electrodes closely attached to the optical waveguide with a buffer layer sandwiched between the substrate and the electrodes, and a driver circuit for applying a voltage between the electrodes. The buffer layer is made of a material having a dielectric constant in the range of 20-1000. The buffer layer is more preferably made of a material having a dielectric constant in the range of 20-200. The material of the buffer layer is selected from the group consisting of HfO.sub.2, TiO.sub.2, SrTiO.sub.3, BaTiO.sub.3, LiNbO.sub.3, LiTaO.sub.3, Pb(Zr, Ti)O.sub.3, and (Pb, La)(Zr, Ti)O.sub.3.

REFERENCES:
patent: 3904270 (1975-09-01), Cheo
patent: 4076381 (1978-02-01), Hammer
patent: 4775208 (1988-10-01), Robinson et al.
patent: 5185829 (1993-02-01), Yamada et al.
patent: 5214723 (1993-05-01), Zamkotsian
patent: 5214724 (1993-05-01), Seino et al.
patent: 5317666 (1994-05-01), Agostinelli et al.
patent: 5404412 (1995-04-01), Scino et al.
patent: 5526448 (1996-06-01), Nagata et al.
patent: 5566258 (1996-10-01), Hatori et al.
Japanese Journal of Applied Physics, "DC Drift Phenomena in LiNb03 Optical Waveguide Devices", Apr. 1981, pp. 733-737.

Affiliated with

Also associated with

Rating

Electro-optical waveguide element with reduced DC drift phenomen does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electro-optical waveguide element with reduced DC drift phenomen, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electro-optical waveguide element with reduced DC drift phenomen will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-430250