Process for fabricating an optical device for generating a secon

Details Process for fabricating an optical device for generating a secon Process for fabricating an optical device for generating a secon

1994-02-01

1995-01-10

Niebling, John

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

204140, C25F 500

Patent

active

053804104

ABSTRACT:
A method for fabricating an SHG device by forming an inversion region having a first direction of polarization selectively in a ferroelectric substrate that has a second, opposite direction of polarization. A proton exchange process exchanges cations in the ferroelectric substrate with protons, selectively in correspondence to each portion of the substrate in which an inversion region is to be formed. Electrodes are provided on upper and lower major surfaces of the ferroelectric substrate, and the inversion region is selectively grown in a direction perpendicular to the upper major surface of the ferroelectric substrate while applying a d.c. voltage to the electrode on the upper major surface of the ferroelectric substrate thereby to induce an electric field acting in a direction coincident with the direction of said first polarization in said ferroelectric substrate.

REFERENCES:
patent: 3531779 (1970-09-01), Hopkins et al.
patent: 3826348 (1974-09-01), Summimoto et al.
patent: 3836348 (1974-09-01), Sumimoto et al.
patent: 3899697 (1975-08-01), Cummins
patent: 4057660 (1977-11-01), Yoshida et al.
patent: 4236785 (1980-12-01), Papuchon et al.
patent: 4886587 (1989-12-01), Miyawaki
patent: 5118923 (1992-06-01), Farina
Ballman et al., "Ferroelectric domain reversal in lithium metatantalate", 1972, Ferroelectrics, vol. 4, pp. 189-194.
Haycock et al., "A method of polling LiNbO.sub.3 and LiTaO.sub.3 below T.sub.c ", Jan. 20, 1986, Univ. of Sussex, School of Mathematical and Physical Sciences, Brighton, UK, pp. 698-700.
Stevenage H., "Fabrication of periodic domain grating in LiNbO.sub.3, by electron beam writing and application of nonlinear optical processes", Electronics Letters, 8030, Jul. 4, 1991.
Nakumara et al., "Ferroelectric inversion layers formed by heat treatment of proton-exchanged LiTaO.sub.3," Applied Physics Letters, vol. 56, No. 15, Apr. 16, 1990, New York, N.Y., pp. 1535-1536.
Mizuuchi et al., "Blue-light generation by quasi-phase-matched second-harmonic generation in LiTaO.sub.3," Conference on Lasers and Electro-Optics, 1991 Technical Digest Series, vol. 10, May 14, 1991, Abstract CTUV3: p. 164.
Nakumara et al., "Ferroelectric inversion layers formed by heat treatment of proton-exchanged LiTaO.sub.3," Applied Physics Letters, vol. 56, No. 16, Apr. 16, 1990, New York, N.Y., pp. 1535-1536.
Mizuuchi et al., "Blue-light generation by quasi-phase-matched second-harmonic generation in LiTaO.sub.3," Conference on Lasers and Electro-Optics, 1991 Technical Digest Series, vol. 10, May 14, 1991, Abstract CTUV3: p. 164.

Affiliated with

Also associated with

Rating

Process for fabricating an optical device for generating a secon does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for fabricating an optical device for generating a secon, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for fabricating an optical device for generating a secon will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-848798