ring-dyed fiber

It is shown that, for any yarn linear density considered here, combing roller speed varying from 5000 to 9150 r/ min affects content of extra long fiber in fiber ring and yarn properties but does not significantly influence spinning stability.

研究结果表明，不同纺纱细度下，在5000～9150r/min范围内分梳辊转速对纺纱稳定性没有显著影响，而对转杯纤维环中超、倍长纤维含量及成纱质量有较大影响；

The experiment of MOPA ( Master Oscillator Power Amplifier) laser system with an optical fiber as the phase conjugate mirror is reported. The laser beam from the unidirectional ring resonator was amplified and then coupled in a optical fiber to get the phase conjugate beam.

介绍了采用光纤作为位相共轭镜应用于MOPA（Master-Oscillator-Power-Amplifier）系统的初步实验，利用单向环形腔振荡器输出并经一级放大，将放大后输出激光耦合到光纤中获得了位相共轭激光输出。

At present interferometric fiber optic gyro technology is well established, but in miniaturization it meet difficulty because of its fiber optic ring length requirements, and in further improving precision also is in difficulty.

目前干涉式光纤陀螺技术已经非常成熟，但是其在小型化方面因受光纤环长度的限制，并且在进一步提高精度方面也遇到困难。

In the last part of this thesis, considering input threshold power distance of bistability switch point, input threshold power of bistability switch point, stabilization, switching time and so on, we design a erbium doped fiber ring resonator switch with double-directional coupler.

综合考虑开关阈值功率的间隔、开关阈值功率的大小、稳定性、开关转换时间等因素，选取适当的参数，设计了一个掺铒光纤环腔双稳开关。

Fiber-optic grating sensing based on thin-walled ring section beam

基于圆环形薄壁截面梁的光纤光栅传感研究

The primary achievements in this paper are as follows: 1. The basic principles, research situation and the main application of the micro-ring resonators are summarized and the purpose of studying the all-fiber micro-ring resonators is illustrated. 2.

主要内容和工作如下：1.综述了微环谐振器的基本原理，国内外研究现状与主要应用，阐述了研制全光纤型微环谐振器的研究意义。

Fiber-optic grating sensing based on Loop thin-walled ring section beam is proposed and demonstrated. The temperature and stress can be measured simultaneously using only one fiber grating.

提出将圆环形薄壁截面梁应用于光纤光栅传感，用一个光栅实现了对温度与应力的同时区分测量；

Study on Time-Sharing Difference Absorption Optical Fiber CH_4 Sensor Graded Ring of Fractions, Graded Fractional Module and Method of Graded Localization

分时差分式光纤甲烷气体检测仪的研制分式分次环、分式分次模与分次局部化方法

The spectrum transmission function ( STF) of an optical fiber ring is obtained from the theory of partially coherent light.

应用部分相干光理论，推导出了光纤环光谱传递函数。

This paper presents the scheme to detect the resonance point using two frequency serrodyne modulation, and uses the Lorentzian function to describe the expression of the output power at the exit port of the fiber ring resonator taking the temporal coherence of the laser into account.

采用两种频率的锯齿波组合调制，考虑激光器有限光谱线宽条件下，采用洛仑兹线型描写光纤环形谐振腔的输出光强表达式。