CAJ | 학술논문

环形谐振器作为谐振式光学陀螺的核心敏感部件，其精细度的大小直接影响光纤陀螺的灵敏度,所以研究光纤环形谐振器的特性及其精细度是优化陀螺设计和制造及提高性能的关键。通过对比分析不同耦合器结构的耦合原理，系统分析了在一定激光器线宽的基础上，谐振式光学陀螺系统灵敏度和谐振腔光路中各参数的间的关系及耦合器耦合系数与各损耗参数间的关系。设计优化R- MOG系统的主要参数。最终在同时考虑到谐振腔的高精细度和高Q值得前提下，得到当腔长尺寸为21.4 cm时，精细度达170，Q值为3.34×107，此时，灵敏度为0.48(°)/h，并且,通过建立一个R- MOG闭环实验系统,对系统双路转动的闭环响应进行了测试,这为陀螺系统的构建提供了理论和实验基础。
배형해진기작위해진식광학타라적핵심민감부건，기정세도적대소직접영향광섬타라적령민도,소이연구광섬배형해진기적특성급기정세도시우화타라설계화제조급제고성능적관건。통과대비분석불동우합기결구적우합원리，계통분석료재일정격광기선관적기출상，해진식광학타라계통령민도화해진강광로중각삼수적간적관계급우합기우합계수여각손모삼수간적관계。설계우화R- MOG계통적주요삼수。최종재동시고필도해진강적고정세도화고Q치득전제하，득도당강장척촌위21.4 cm시，정세도체170，Q치위3.34×107，차시，령민도위0.48(°)/h，병차,통과건립일개R- MOG폐배실험계통,대계통쌍로전동적폐배향응진행료측시,저위타라계통적구건제공료이론화실험기출。
Resonator is the core sensing element of resonant optical gyroscope, its fineness is an important parameter of gyroscope. Fineness F directly affects the size of the sensitivity of fiber﹣optic gyroscope (FOG), so research on the characteristics of optical fiber ring resonator and its fineness is the key to optimize the design, manufacture and improve its performance. In this paper, the working principle of ring resonator was introduced in detail, including the coupling principle of the coupler structure and the transmission mode of light in resonator. Each influenced parameters of sensitivity and some parameters between coupling coefficient and loss were analyzed. Finally by considering the resonator of high precision and high Q, when the cavity size is 21.4 cm, the fineness can reach 170, the Q value can reach 3.34×107, and at this point, the sensitivity is 0.48 (°)/h. Moreover, the R- MOG closed loop experiment system was established and closed﹣loop response of a two﹣way rotation system was tested, which provides theoretical and experimental basis for the construction of gyro system.