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.

拟议的研究涉及光纤中交叉相位调制（XPM）效应的实验和理论研究，以及如何利用这种效应通过与另一个超短脉冲共同传播来影响一个光脉冲的行为。 该项目分为三个部分。 第一部分涉及泵浦脉冲和斯托克斯脉冲之间的 XPM 相互作用，斯托克斯脉冲是通过受激拉曼散射过程在内部生成的。 第二部分与光纤输入端同时发射的泵浦脉冲和信号脉冲之间的 XPM 相互作用有关。 泵浦脉冲和信号脉冲允许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。 第三部分与当泵浦脉冲和信号脉冲具有相同的载波波长但激发单模光纤的正交偏振模式时的 XPM 相互作用有关。 目标是研究如何使用 XPM 相互作用通过强泵浦脉冲来修改信号脉冲的传播特性（例如其相位、频率、形状或频谱）。 该研究对于光子开关和高速光通信领域的许多工程应用很有用。