发明名称 |
ELECTRICALLY ADJUSTABLE DIFFRACTION GRATING |
摘要 |
A diffraction grating for a waveguide or for externally incident light. The grating includes a substrate and an electrooptic structure extending over it . The electrooptic structure may include a waveguide having a propagation axis . A first and a second electrode structure are provided on either side of the electrooptic structure so that an electric field is generated in the electrooptic structure when a potential is applied to the electrodes. The first electrode structure has an interdigitated configuration defining a plurality of fingers. In use, respective potentials V0 and V0 +.DELTA.V are applied to adjacent fingers. The diffraction grating induced in the electrooptic structure by the periodic electric field advantageously has a refractive index adjustable by varying V0 and .DELTA.V and a spatial periodicity adjustable by varying .DELTA.V.
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申请公布号 |
CA2362145(A1) |
申请公布日期 |
2000.08.24 |
申请号 |
CA20002362145 |
申请日期 |
2000.02.16 |
申请人 |
PPM PHOTOMASK INC.;KULISHOV, MYKOLA |
发明人 |
KULISHOV, MYKOLA |
分类号 |
G02F1/05;G02F1/065;G02F1/29;G02F1/295;(IPC1-7):G02F1/29;H01S3/115 |
主分类号 |
G02F1/05 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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