SBIR Phase I: Low-Voltage Poling of Waveguides in Nonlinear Optical Materials

这个小企业创新研究（SBIR）第一阶段项目提出开发一种新型的低电压周期性极化技术，用于在非线性光学材料中创建高效的准相位匹配波导。所提出的技术的关键创新是使用共面微梳电极来周期性地极化嵌入在非线性光学材料（例如磷酸钛氧钾（KTP））中的波导。周期性极化波导将实现连续波和低峰值功率准连续辐射的高效、准相位匹配（QPM）、非线性光学频率转换。所提出的技术将允许具有不同QPM光栅的多个波导被制造到单个器件上，从而建立波长灵活性以及降低成本。低压极化的预期好处是波导具有显著提高的转换效率、低散射损耗和增加的制造成品率。该项目的商业应用领域是生物分析仪器（如医疗诊断、流式细胞仪和医疗成像仪）和电信。

This Small Business Innovation Research (SBIR) Phase I project proposes to develop a novel low-voltage periodic poling technique for creating highly efficient quasi-phase matched waveguides in nonlinear optical materials. The key innovation of the proposed technology is the use of co-planar micro-comb electrodes to periodically pole waveguides embedded in a nonlinear optical material such as potassium titanyl phosphate (KTP). Periodically poled waveguides will enable highly efficient, quasi-phase matched (QPM), nonlinear optical frequency conversion of continuous wave and low peak power quasi-continuous radiation. The proposed technique will allow multiple waveguides with different QPM gratings to be fabricated onto a single device, thereby building in wavelength flexibility as well as reducing cost. The anticipated benefits of low-voltage poling are waveguides with significantly improved conversion efficiency, low scattering loss, and increased manufacturing yields.The commercial applications of this project are in the areas of bioanalytical instrumentation (such as medical diagnostics, flow cytometers and medical imagers) and telecommunications.