Developmentof molecular optical modulator based on hollow-core microstructured optical fiber

基于空芯微结构光纤的分子光调制器的研制

• 批准号: 23656053
• 负责人: ZAITSU Shinichi
• 金额: $ 2.5万
• 依托单位: Kyushu University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Challenging Exploratory Research
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23656053/
• 关键词: 非線形光学; 誘導ラマン散乱; 中空微細構造ファイバー; 分子位相変調; 四光波混合

A molecular optical modulator operating at a frequency in the terahertz region based on a hollow-core photonic band gap (HCP) fiber was designed and its performance was evaluated. Pressurized hydrogen molecules were injected in the newly designed pressure-resistant HCP fiber cell and coherent molecular motions of them were excited by a highly repetitive ultrashort-pulse laser. The feasibility of molecular optical modulation by this scheme was evaluated by probing the coherent molecular motion using a continuous-wave laser. It is found that a longer fiber length is necessary for efficient interaction between molecules and a laser beam in the HCP fiber.

设计了一种基于空芯光子带隙（HCP）光纤的太赫兹波段分子光调制器，并对其性能进行了评价。将加压的氢分子注入到新设计的耐压HCP光纤池中，用高重复频率超短脉冲激光激发氢分子的相干运动。利用连续激光探测分子的相干运动，验证了该方案用于分子光调制的可行性。结果发现，更长的光纤长度是必要的分子和激光束之间的有效相互作用的HCP光纤。