Optical scanner
专利汇可以提供Optical scanner专利检索，专利查询，专利分析的服务。并且PURPOSE:To attain efficient heating and to simplify the constitution of a device by supplying heating current successively and alternately to diffraction gratings in a driving circuit. CONSTITUTION:In the driving device of an optical scanner 20, a semiconductor laser 17 is driven, laser beams 14' are turned to parallel beams 14 through a waveguide lens 16 and the parallel beams 14 are advanced through an optical waveguide layer 11 in a waveguide mode in the array direction of the diffraction gratings G1-Gn. Current I generated from a heating power supply 22 is made to flow into the diffraction gratings G1-Gn through a driver 15 and a diffraction grating to which the current I is supplied is successively selected one by one from the diffraction gratings G1-Gn to supply the current I. Consequently, respective diffraction gratings G1-Gn are successively heated, the adjacent layer 12 at the part allowing into contact with the heated diffraction grating is also heated and the diffractive index of the parts is increased. Thus, the part of which diffractive index is to be changed is directly and efficiently heated by the diffraction grating, so that the constitution can be simplified, the reliability of the device can be improved and the cost of the device can be reduced.，下面是Optical scanner专利的具体信息内容。
| 标题 | 发布/更新时间 | 阅读量 |
|---|---|---|
| 一种列阵波导光栅及其制备方法、应用和应用产品 | 2020-05-11 | 453 |
| 一种基于波导的显示系统 | 2020-05-11 | 580 |
| 一种基于有机无机混合波导的可调谐窄线宽激光器 | 2020-05-12 | 784 |
| 一种WDM PON系统中上行传输方法及其装置 | 2020-05-08 | 971 |
| 一种基于阵列波导光栅技术的波分复用光组件 | 2020-05-08 | 616 |
| 一种实现片上多波长复用的系统 | 2020-05-12 | 529 |
| 一种基于光谱分割的可重构光电振荡器 | 2020-05-12 | 633 |
| 波分复用收发一体光模块、系统及实现方法 | 2020-05-11 | 60 |
| 基于光量子技术的高灵敏度光纤光栅传感方法及系统 | 2020-05-12 | 245 |
| 光模块 | 2020-05-12 | 465 |
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