Nonlinear Propagation of Ultrashort Pulses in Two-Dimensional Silicon Photonic Bandgap Crystals

超短脉冲在二维硅光子带隙晶体中的非线性传播

• 批准号: 5318714
• 负责人: Professor Dr. Klaus Boller, Ph.D.
• 金额: --
• 依托单位: Fachbereich Physik
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 财政年份: 2001
• 资助国家: 德国
• 起止时间: 2000-12-31 至 2003-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/5318714?language=en
• 关键词: Nonlinear; Propagation; Ultrashort; Pulses; Two

The propagation of ultrashort pulses in photonic bandgap crystals (PBSs) is of high interest for future photonic circuits, which are expected to supplement electronic microchips. Of particular interest is the propagation of ultrashort pulses in PBCs, where the intensity-dependent refractive index compensates the dispersion, such that the pulse preserves its temporal shape (solitons). Further, for an optical switching of pulses it is important to study the mutual nonlinear interaction of such solitons. To get access to a much richer variety of solitons it is required to study PBCs with a dimension higher than one, e.g., PBCs which are at least two-dimensional. Our goal is the experimental investigation of ultrashort pulse propagation in two-dimensional PBCs. Using Si, two-dimensional photonic crystals will be manufactured. Intense, ultrashort (ps and fs), and wavelength tunable pulses from an infrared, synchronously pumped optical parametric oscillator, will be focused through the PBCs to measure the spectrum, temporal shape and carrier phase of the transmitted pulses as a function of the input pulse parameters and direction of propagation. The results will be compared with theoretical modelling to unterstand the unterlying physics, to verify the existence of new solitons, and to pursue new schemes for switching of light by light.

超短脉冲在光子带隙晶体中的传播对于未来的光子电路具有重要意义，光子电路有望成为电子微芯片的补充。特别感兴趣的是超短脉冲在PBCs中的传播，其中强度相关的折射率补偿色散，使得脉冲保持其时间形状（孤子）。此外，对于脉冲的光开关，重要的是研究这种孤子的相互非线性相互作用。为了获得更丰富多样的孤子，需要研究具有高于一维的维度的PBC，例如，至少是二维的PBMC。我们的目标是对超短脉冲在二维光子晶体中的传输进行实验研究。利用Si，将制造二维光子晶体。来自红外同步泵浦光参量振荡器的强、超短（ps和fs）和波长可调谐脉冲将通过PBC聚焦，以测量作为输入脉冲参数和传播方向的函数的传输脉冲的光谱、时间形状和载波相位。结果将与理论模型进行比较，以了解unterlying物理，以验证新的孤子的存在，并寻求新的方案，光开关的光。