1. The history and prospect of periodically poled lithium niobate technique is briefly introduced.

2. Application: For lithium niobate single crystal and additive in special optical glass.

3. A series of potassium lithium niobate ( KLN ) crystals with large size and good homogeneity for compositional ions have been grown.

4. Strontium barium niobate ( SBN ) ceramic is a good electro-optic material and has been widely used.

5. None buffered X cut Lithium Niobate electrode structure has the smallest half wave voltage (about 70% of Z cut devices).

6. The storage dynamics in doped lithium niobate are studied. It gives that the equations of the migration of charges is due to diffusion or drift and photovoltaic effect.

7. The method of the invention improves the dielectric coefficient of the potassium sodium niobate system greatly, and is capable of meeting the business usage requirement of large-capacity capacitors.

8. We obtain a optical image amplification with high gain factor of 1583 in doped lithium niobate crystals.

9. The principle, manufacture and application of periodically poled lithium niobate are introduced in detail.

10. Experimental and theoretical study of Cerenkov type second harmonic generation (SHG) with green and blue output in proton exchanged lithium niobate planar waveguide is reported.

11. The aim of the thesis is to explore and develop promising new niobate dielectric function materials.

12. And the observed light intensity of quasi-breakdown indicates that the process of photo-refractive is the result of photovoltaic effect in doped lithium niobate .

13. The light amplification mechanism of fanning noise in doped lithium niobate crystals was analyzed and the light amplification competition between the signal beam and the fanning noise was discussed.

14. The general formula, cation site occupancy and its coordination number in the structure of tungsten bronze niobate crystals are discussed.

14. try its best to collect and create good sentences.

15. We have studied the influence of different annealing conditions on refractive index profiles of He and H ions implanted lithium niobate planar waveguides.

16. As a result, we choice none-buffered X cut Lithium Niobate electrode structure to achieve the half wave voltage as low as possible.

17. Due to its excellent pyroelectric, electro-optic and photo-refractive properties, strontium barium niobate (SBN) is one of the most potential lead-free ferroelectric materials.

18. The aim of this thesis is to explore and develop promising niobate and tantalite materials with perovskite-like structure.

19. The DC bias shift caused by the pyroelectric effect of Lithium Niobate crystals is analyzed. Moreover, a physical model is proposed to estimate the DC bias shift.

20. The origin of optically induced refractive index in lithium niobate is presented.

21. But the researchers were able to pull all these tricks off at once using a lithium niobate crystal doped with rare earth ions and chilled to -454 degrees.

22. The principle, manufacture and application of periodically poled lithium niobate(PPLN) are introduced in detail.