Sensitivity improvement of TAMA300 gravitational-wave detector by developing next-generation interferometer technology

通过开发下一代干涉仪技术提高TAMA300引力波探测器的灵敏度

• 批准号: 20244034
• 负责人: FUJIMOTO Masakatsu
• 金额: $ 16.64万
• 依托单位: National Astronomical Observatory of Japan
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 2008
• 资助国家: 日本
• 起止时间: 2008 至 2010
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-20244034/
• 关键词: 重力波; レーザー干渉計; 宇宙物理; 制御工学; 重力波; レーザー干渉計; 宇宙物理; 制御工学

This research aims to realize a sensitivity enhancement in Japanese gravitational-wave detector LCGT by adopting a resonant sideband extraction (RSE) scheme. The following achievements in the past three years were made and bring about a steady progress for the LCGT ; (1) Digital mirror controls, (2) High-gain recycling control, (3) Developing of the modulation and de-modulation systems, (4) Avoidance of degenerations of the mirror alignment signals, and (5) Variable observational-band design.

这项研究旨在通过采用谐振侧带提取（RSE）方案来实现日本重力波检测器LCGT的敏感性提高。在过去三年中，取得了以下成就，并为LCGT带来了稳步的进步。 （1）数字镜控制，（2）高增益回收控制，（3）开发调制和调制系统，（4）避免镜像对齐信号的退化，以及（5）可变观测带设计。