Study of Cross-Phase Modulation in Optical Fibers

光纤交叉相位调制的研究

• 批准号: 9010599
• 负责人: Govind Agrawal
• 金额: $ 7万
• 依托单位: University of Rochester
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-09-01 至 1993-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9010599&HistoricalAwards=false
• 关键词: Study; Cross; Phase; Modulation; Optical

The proposed research is related to an experimental and theoretical study of the effects of cross-phase modulation (XPM) in optical fibers and how such effects can be used for influencing the behavior of one optical pulse by copropagating it together with another ultrashort pulse. The project is divided into three parts. The first part is concerned with the XPM interaction between the pump pulse and the Stokes pulse that is generated internally through the process of stimulated Raman scattering. The second part is related to the XPM interaction between the pump and signal pulses launched simultaneously at the fiber input. The pump and signal pulses are allowed to have different carrier wavelengths, different pulse widths, and a relative time delay between them. The third part is related to the XPM interaction when the pump and signal pulses have the same carrier wavelength but excite the orthogonally polarized modes of a single-mode fiber. The objective is to study how the XPM interaction can be used to modify the propagation characteristics of a signal pulse (such as its phase, frequency, shape, or spectrum) through an intense pump pulse. The study is useful for many engineering applications in the fields of photonic switching and high- speed optical communications.

拟议的研究与跨相调制（XPM）在光纤中的作用的实验和理论研究有关，以及如何通过将其共同传播与另一个超静脉脉冲将其共同传播来影响一个光脉冲的行为。 该项目分为三个部分。 第一部分与通过刺激的拉曼散射过程内部生成的泵脉冲和stokes脉冲之间的XPM相互作用有关。 第二部分与在纤维输入处同时发射的泵和信号脉冲之间的XPM相互作用有关。 允许泵和信号脉冲具有不同的载波波长，不同的脉冲宽度以及它们之间的相对时间延迟。 当泵和信号脉冲具有相同的载体波长时，第三部分与XPM相互作用有关，但激发了单模光纤的正交极化模式。 目的是研究如何使用XPM相互作用来修改信号脉冲（例如其相，频率，形状或光谱）的传播特性。 该研究对于光子开关和高速光学通信领域的许多工程应用都有用。