| 1. | Fbg is sensitive to temperature and stresses . its central wavelength will shift with the changes of environment temperature and stresses 光纤光栅对于温度和应力都是敏感的,它的中心波长会随环境温度和所受应力的变化而产生漂移。 |
| 2. | Fibre optic communication subsystem basic test procedures - test procedures for general communication subsystems - central wavelength and spectral width measurement 光纤通信分系统基本试验程序.普通通信分系统试验程序.中心波长和光谱宽度测量 |
| 3. | Fibre optic communication subsystem basic test procedures . part 1 - 3 : test procedures for general communication subsystems . central wavelength and spectral width measurement 光纤通信子系统基本试验程序.第1 - 3部分:一般通信子系统的试验程序.中心波长和谱宽的测量 |
| 4. | Fibre optic communication subsystem basic test procedures - part 1 - 3 : test procedures for general communication subsystems - central wavelength and spectral width measurement 光纤通信分系统基本试验程序.第1 - 3部分:一般通信分系统的试验程序.中心波长和光谱宽度的测量 |
| 5. | 4 . spectrum database has been built for reasearch areas , resample the spectrum of different object in spectrum database according to the centric wavelength of the select bands 建立了研究地区内典型地物的地物光谱库,并分别地物按所选波段的中心波长进行了光谱重采样。 |
| 6. | The equation is related to both of the grating period and the sampled period , which have no relation to the duty ratio , the length of the gratings and the coupling coefficient 这一方程与光栅的周期和取样周期有关,它们共同确定了各反射峰的中心波长,与取样时的占空比、光栅长度和耦合系数没有关系。 |
| 7. | It is also found that replacement of substrate and adjustment of film stack structure would lead to the change of drift , this will enhance the temperature stability of filter 同时经过计算分析发现通过更换膜系基板和调整膜系结构可以改变滤光片中心波长的漂移,这个结果有助于提高滤光片的温度稳定性。 |
| 8. | The calculating formulas of central wavelength drift based on thin film microstructure and thermal - stress deformation are deduced , the drift of dwdm filter 15 calculated with these formulas 论文还讨论了波分复用滤光片的温度稳定性问题。推导了薄膜微观结构和热应力形变模型上的中心波长漂移计算公式。 |
| 9. | The key to make fbg use more widely is to demodulate the wavelength signal of fbg . the precision of the whole system is based on the precision of demodulating wavelength shift 如何对光纤光栅的波长编码信号进行解调,是实现光纤光栅传感实用化的关键,对中心波长移位的检测精度直接限制了整个系统的检测精度。 |
| 10. | The experiment proved the adjustments is effective . according to the fact that the structure of the film causes the wavelength shift , we prepared the shift - free polarizers at 1054nrn with plasma - iad 根据膜层的柱状多晶结构是引起工作波长漂移的主要因素,利用等离子体辅助沉积制备出了中心波长为1054nm的无漂移偏振膜。 |