Optical waveguiding devices using monocrystalline materials of the sillenite family of bismuth oxides专利检索-异质外延外延生长微电子学专利检索查询-专利查询网

Optical waveguiding devices using monocrystalline materials of the sillenite family of bismuth oxides

阅读：112发布：2022-06-27

专利汇可以提供Optical waveguiding devices using monocrystalline materials of the sillenite family of bismuth oxides专利检索，专利查询，专利分析的服务。并且Monocrystalline materials of the sillenite family of bismuth oxides are used in the fabrication of optical thin-film devices. The sillenite materials are cubic in crystalline structure, transparent in the visible and near-infrared portions of the spectrum, electro-optic, piezoelectric, optically active, have useful acoustic surface wave coefficients and can be grown into high quality optical thin films by heteroepitaxial growth techniques. This wide range of properties in the light-guiding monocrystalline film should prove useful in the fabrication of a variety of thin-film devices suitable for integrated optical circuit arrangements. One such device is disclosed employing a thin light-guiding sillenite film upon which is deposited a pair of interdigital electrodes. The device serves as a thin-film electro-optical switch and modulator for a guided light beam.，下面是Optical waveguiding devices using monocrystalline materials of the sillenite family of bismuth oxides专利的具体信息内容。

权利要求

2. The device of claim 1 in which said monocrystalline sillenite compositions of said first and second bodies consist essentially of Bi2O3 and combined with said Bi2O3 at least one material selected from the group consisting of GeO2, SiO2, TiO2, ZnO, Ga2O3, Al2O3 Fe2O3, B2O3 and P2O5.

3. The device of claim 2 in which the material of said first body is 6Bi2O3-GeO2 and the material of said second body is selected from the group consisting of 6Bi2O3-TiO2, 6Bi2O3-ZnO, 12Bi2O3-Ga2O3, and 12Bi2O3-Fe2O3.

4. The device of claim 2 in which the material of said first body is 6Bi2O3-SiO2 and the material of said second body is selected from the group consisting of 12Bi2O3-Ga2O3, 12Bi2O3-Fe2O3 and 6Bi2O3-ZnO.

5. The device of claim 2 in which the beam is launched into said second body to propagate in one of two polarization modes and including means disposed on one of the major surfaces of said second body for filtering out of said guided mode in said second body one of the two polarization modes of the beam.

6. The device of claim 5 in combination with means disposed between said beam launching means and said polarization filtering means for applying a spatially alternating electric field to said second body of a selected period to induce a spatially periodic variation in the refractive index of said second body in the direction of the propagation of the beam.

7. The device of claim 6 in which said electric field applying means comprises a pair of interdigital electrodes including a plurality of fingers formed on one of the major surfaces of said second body, the spacing and difference in potential between the adjacent fingers of said electrodes being sufficient to produce said periodic variation in refractive index of said second body.

8. The device of claim 7 in which the potential difference between the adjacent fingers of said electrodes is constant to provide a continuous switching from one polarization mode to another of the guided beaM propagating in said second body.

9. The device of claim 7 in which the potential difference between the adjacent electrodes is varied to modulate the intensity of the guided beam passing through said polarization filtering means.

10. The device of claim 2 in which the monocrystalline sillenite composition of said second body is doped with suitable concentration of active ion to provide optical gain at the wavelength of the radiation propagating therein.

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Optical waveguiding devices using monocrystalline materials of the sillenite family of bismuth oxides

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