光栅

The high temperature characteristics of long period fiber grating and its strain characteristics at high-temperature with asymmetric refractive index profile in cross section of fiber induced by high-frequency CO2 laser pulses on common communication fiber (corning SMF-28) were proposed.

研究了基于高频CO2激光脉冲单侧写入的截面折变非对称型长周期光纤光栅高温特性及其在高温环境中的轴向应变特性。

This paper studies computer measurement and control technology, grating measurement technology and instrument calibration technology, designs and implements the automatic tester for length dial gauge.

中文摘要：本文研究了微机测控技术、光栅测量技术和仪表检定技术，设计实现了微机全自动长度指示表检定仪。

The design method and features of even-numbered Dammann gratings are presented in this paper.

分析了偶数点阵达曼光栅的设计原理与特性。

The measured experimental results demonstrated that efficient add_drop channel filter could be achieved even if the claddings were not reduced, which provided a method to simplify device fabrication in the further.

初步的实验结果表明，不需要对光纤包层进行处理，利用两平行长周期光栅耦合器完全可以实现有效的上下话路。这为进一步简化制作工艺提供了依据。

Improvement of Wavelength Interrogation for Fiber Bragg Grating Laser Sensor System Based on 3×3 Couplers.

基于3×3耦合器的光纤光栅激光传感系统波长解调方案的改进。

Several typical cavities containing gratings, etalons and resonant reflector as frequency selective elements are studied.

对包括有单、双光栅、标准具和谐振反射器等选频元件的几种典型腔进行了研究。

Lines/mm holographic gratings in ultra low expansion mold plate were replicated onto the cross section of the measured sections in a ball grid array electronic package and a quad flat package.

应用1200线/毫米的云纹光栅并结合云纹干涉法，电子束云纹法，原子力云纹法，扫描电镜云纹法测量QFP和BGA型电子封装组件的热变形。

Thus, the studies on theory and application of fiber gratings become very important.

因此，光纤光栅传感器的理论和应用研究具有重要的实际意义。

In the system a HCN gas absorption cell has been used as wavelength reference.

为实现高精度光纤非本征法布里-珀罗传感器和布拉格光纤光栅波长解调，设计并实现了一种基于可调谐光纤激光器的光纤传感波长解调系统，系统采用具有51条吸收谱线的氰化氢气体吸收池为波长参考基准，采用三次多项式拟合的方法来确定可调谐光纤F-P滤波器的波长与驱动电压的对应关系。

This thesis focuses on the theory and applications of nonlinear fiber gratings.

本论文的研究方向是非线性光纤光栅的理论及应用。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。