Optical: systems and elements – Optical modulator – Light wave directional modulation
Patent
1996-03-19
1997-08-12
Ben, Loha
Optical: systems and elements
Optical modulator
Light wave directional modulation
359285, 385 2, 385 7, 310313D, 310313B, G02F 133, G02F 1035
Patent
active
056571526
ABSTRACT:
An acoustooptic device includes a Y-cut and Z-propagation LiNbO.sub.3 substrate or 128.degree.-rotating Y-plane LiNbO.sub.3 substrate, an optical waveguide layer which is formed on at least a part of the LiNbO.sub.3 substrate and has a higher light refractive index than the LiNbO.sub.3 substrate, an interdigital electrode which is formed on the LiNbO.sub.3 substrate and generates Rayleigh waves, and a dielectric thin film layer formed on the interdigital electrode.
REFERENCES:
patent: 4127320 (1978-11-01), Li
patent: 4418980 (1983-12-01), Keil et al.
patent: 4544229 (1985-10-01), Verber
patent: 4544230 (1985-10-01), Caulfield
patent: 5002349 (1991-03-01), Cheung et al.
patent: 5083856 (1992-01-01), Hatori et al.
patent: 5444322 (1995-08-01), Minami et al.
Propogation Characteristics of Surface Acoustic Waves in ZnO/LiNbO.sub.3 Structures, Jpn. J. Appl. Phys., vol. 32 (1993) pp. 2333-2336, Part 1, No. 5B, May 1993, Kiyoshi Nakamura and Toshiaki Hanaoka.
High Coupling Frequency for Zinc Oxide Overlays on Lithium Niobate Inst. of Elec. & Elecs. Engs., Inc., 1972 Ultrasonics Symposium Proceedings, pp. 370-372, A. Armstrong, et al.
High Efficiency Transducers Having Piezoelectric Bilayer Structure, Proc. the Institute of Electronics and Information Conference, Mar. 1976, K. Ihara, et al.
Ben Loha
Murata Manufacturing Co. Ltd.
LandOfFree
Acoustooptic device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Acoustooptic device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Acoustooptic device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-164272