Tuneable Coupling Structures for Integrated Silicon Photonics

用于集成硅光子学的可调谐耦合结构

• 批准号: 252274958
• 负责人: Professor Dr.-Ing. Manfred Berroth
• 金额: --
• 依托单位: Institut für Elektrische und Optische Nachrichtentechnik (INT)
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2013
• 资助国家: 德国
• 起止时间: 2012-12-31 至 2017-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/252274958?language=en
• 关键词: Tuneable; Coupling; Structures; Integrated; Silicon

Commercial optical transmission systems achieve data rates of 100 Gb/s on a single wave length. Future systems are targeting for data rates of more than 1Tb/s with advanced modu-lation schemes. Therefore, highly efficient photodetectors are required at the receiver side. At the INT non-periodic grating couplers with a record coupling efficiency of -0,62 dB have been achieved with an optical -1dB bandwidth of 40 nm. In the previous DFG project BE2256/23-1 a shifting of 44.7 nm is achieved for the peak envelope of the coupling effi-ciency of a periodic grating coupler. The variation of the peak of the coupling efficiency is investigated by applying the electrooptic effect in a p-n-configuration as well as the ther-mooptic effect. As the thermooptic change of the refractive index is more pronounced, a pure p-or n-doped silicon guiding layer is proposed here. Using the thermooptic effect, a non-periodic grating coupler with backside mirror is suggested with minimum electrical power consumption. The non-periodic grating shall be optimized for a broad coupling range. Finally polarization splitting will be investigated by two-dimensional grating couplers.

商用光传输系统在单个波长上实现100 Gb/s的数据速率。未来系统的目标是利用先进的调制方案实现超过1 Tb/s的数据速率。因此，在接收器侧需要高效率的光电检测器。在INT非周期光栅耦合器上，耦合效率达到了-0.62dB，光带宽为-1dB到40 nm。在DFG的BE 2256/23-1项目中，周期光栅耦合器的耦合效率峰值包络线位移了44.7nm。利用p-n结构中的电光效应和热光效应研究了耦合效率峰值的变化。由于折射率的热光变化更明显，这里提出了纯p型或n型掺杂的硅引导层。利用热光效应，提出了一种带背镜的非周期光栅耦合器。非周期性光栅应针对宽耦合范围进行优化。最后用二维光栅耦合器研究偏振分束。

项目成果

Packaging process for efficient coupling using a grating coupler with backside mirror

使用带后镜的光栅耦合器实现高效耦合的封装工艺

• DOI: 10.1109/nusod.2017.8010036
• 发表时间: 2017
• 期刊: 2017 International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD)
• 作者: Niklas;Manuel;Wolfgang;Félix Rosa;María;Thomas;Rathgeber;Berroth;Manfred
• 通讯作者: Manfred

Sealed and compact fiber links to integrated photonics using grating couplers

使用光栅耦合器将密封紧凑的光纤链路连接到集成光子学

• DOI: 10.1109/group4.2017.8082235
• 发表时间: 2017
• 期刊: 2017 IEEE 14th International Conference on Group IV Photonics (GFP)
• 作者: Niklas;Manuel;Polder;Thomas;Félix Rosa;María;Wolfgang;Scheck;Pascal;Rathgeber;Widmann;Daniel;Berroth;Manfred
• 通讯作者: Manfred

Bandwidth-Enhancement of Silicon Grating Couplers Using Dispersive Coatings

使用色散涂层增强硅光栅耦合器的带宽

• DOI: 10.1109/nusod.2019.8806940
• 发表时间: 2019
• 期刊: 2019 International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD)
• 作者: Niklas;Rouven H;Rathgeber;Wolfgang;Berroth;Manfred
• 通讯作者: Manfred