A back-linked Fabry-Perot interferometer for space-borne gravitational wave observations

被引:2
|
作者
Izumi, Kiwamu [1 ]
Fujimoto, Masa-Katsu [2 ]
机构
[1] Japan Aerosp Explorat Agcy, Chuo Ku, Inst Space & Astronaut Sci, 3-1-1 Yoshinodai, Sagamihara, Kanagawa 2525210, Japan
[2] Natl Astron Observ Japan, 2-21-1 Osawa, Mitaka, Tokyo 1810015, Japan
来源
PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS | 2021年 / 2021卷 / 07期
基金
日本学术振兴会;
关键词
FREQUENCY STABILIZATION; DETECTORS; ANTENNA; LENGTH;
D O I
10.1093/ptep/ptab067
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Direct observations of gravitational waves at frequencies below 10 Hz will play a crucial role in fully exploiting the potential of gravitational wave astronomy. One approach to pursue this direction is the utilization of laser interferometers equipped with Fabry-Perot optical cavities in space. However, there are a number of practical challenges in following this path. In particular, the implementation of precision control for cavity lengths and the suppression of laser phase noises may prevent a practical detector design. To circumvent such difficulties, we propose a new interferometer topology, called a back-linked Fabry-Perot interferometer, where precision length controls are not required and an offline subtraction scheme for laser phase noises is readily applicable. This article presents the principle idea and the associated sensitivity analyses. Despite additional noises, a strain sensitivity of 7 x 10(-23) Hz(-1/2) may be attainable in the decihertz band. Several technological developments must occur and studies must be carried out to pave the way for the implementation.
引用
收藏
页数:24
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