An optical fiber spool for laser stabilization with reduced acceleration sensitivity to 10~（-12）/g

• Published in: Chinese physics B 2015-10, Vol.24 (10), p.256-261
• Main Author: 胡永奇 董靖 黄军超 李唐 刘亮
• Format: Article
• Language: English
• Subjects: 光稳定; 光纤线; 几何参数; 加速度灵敏度; 垂直加速度; 机械变形; 种用; 线轴
• ISSN: 1674-1056; 2058-3834
• DOI: 10.1088/1674-1056/24/10/104213

Environmental vibration causes mechanical deformation in optical fibers, which induces excess frequency noise in fiber-stabilized lasers. In order to solve such a problem, we propose an ultralow acceleration sensitivity fiber spool with symmetrically mounted structure. By numerical analysis with the finite element method, we obtain the optimal geometry parameters of the spool with which the horizontal and vertical acceleration sensitivity can be reduced to 3.25 × 10^-12/g and 5.38 × 10^-12/g respectively. Moreover, the structure features the insensitivity to the variation of geometry parameters,which will minimize the influence from numerical simulation error and manufacture tolerance.