Coupling device for optical wave guides专利检索-电子束曝光微电子学专利检索查询-专利查询网

Coupling device for optical wave guides

阅读：68发布：2023-04-15

专利汇可以提供Coupling device for optical wave guides专利检索，专利查询，专利分析的服务。并且A device for optically coupling a dielectric optical wave guide to another optical device such as a detector, a laser or light amplifier characterized by a coupling element having either a refraction index or surface relief structure which is arranged as a layer extending circumferentially around the surface of the wave guide adjacent one end, and an optical component, such as an axicon, kinoform, a phase hologram or a volume hologram, having an axis of rotational symmetry which is arranged coaxially with the axis of the wave guide between the end and the optical device. To produce the device, the layer is applied on the wave guide and treated by exposing with an amplitude modulated light beam or an intensity modulated electron beam. After completing the treating by developing and fixing the exposed layer, an optical component is arranged on the desired position between the end of the wave guide and the optical device.，下面是Coupling device for optical wave guides专利的具体信息内容。

权利要求

1. A device for coupling light from an optical device into a cylindrical dielectric optical wave guide and for coupling light from the wave guide into the optical device comprising a coupling element having a structure for producing a single diffraction order of light received thereby and being a kinoform, said coupling element being a layer extending circumferentially around the outer surface of the cylindrical wave guide adjacent one end thereof, and an optical component having an axis of rotational symmetry, said optical component being disposed between said one end of the wave guide and the optical device and being coaxial with the wave guide, said optical component distributing the light waves received from the surface of the optical device evenly on the layer of said coupling element and distributing the light waves received from the coupling element evenly onto the surface of the optical device so that the light waves of at least one optimum mode matching light distribution are guided between the light wave guide and the optical device in either direction.

2. A device according to claim 1, wherein the structure is the refractive index variation of the layer.

3. A device according to claim 1, wherein the structure is a surface relief structure of the layer.

4. A device according to claim 1, wherein the layer comprises a material having a lower refractive index than the material of the wave guide.

5. A device according to claim 1, wherein the layer consists of a material having a refractive index equal to or greater than the refractive index of the material of the wave guide, and wherein at least one transparent intermediate layer is disposed between the first mentioned layer and the wave guide, said intermediate layer having a thickness in the order of a wave length of the light being guided therethrough and having a refractive index less than the refractive index of the material of the wave guide.

6. A device according to claim 1, wherein the layer is a photo resist layer.

7. A device according to claim 1, wherein the layer is a dichromate gelatin layer.

8. A device according to claim 1, wherein the optical component is a phase hologram.

9. A device according to claim 1, wherein the optical component is a volume hologram.

10. A device according to claim 1, wherein the optical component is an axicon.

11. A device according to claim 1, wherein the optical component is a kinoform.

12. A device according to claim 1, wherein the optical component has structure to transmit light of a given mode with the light intensity being evenly distributed to a far degree.

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Coupling device for optical wave guides

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