| 1. | The series of single - mode optical fibres for telecommunication part 2 : characteristics of a cut - off wavelength shifted single - mode optical fibre
通信用单模光纤系列第2部分:截止波长位移单模光纤特性 |
| 2. | In addition , the center - reflecting wavelength shift of the fbg varies in good linearity with the applied pressure
98x106mps ” l ）的引41 ff ； fbg的中心反射波长位移量与施加给直弹簧管的压力之间具有良好的线性关系。 |
| 3. | As a sensor , fbg can be immune from light source disturbance and system loss by transforming sensing information into its reflecting wavelength shift
作为传感元件，光纤光栅将被感测信息转化为其反射波长的移动，即波长编码，因而不受光源功率波动和系统损耗的影响。 |
| 4. | As a sensor , fbg can be immune from light source disturbance and system loss by transforming sensing information into its reflecting wavelength shift , that is wavelength coding
作为传感元件，光纤光栅将被测信息转化为其反射波长的移动，即波长编码，因而不受光源功率波动和系统损耗的影响。 |
| 5. | Fbg can be immune from light source disturbance and system loss by transforming sensing information into its reflecting wavelength shift , which has the characteristic of wavelength coding
由于它能将被感测信息转化为其反射波长的偏移，即具有波长编码的特性，因而不受光源功率波动和系统损耗的影响。 |
| 6. | 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。 |
| 7. | 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。 |
| 8. | When the sensing head equipped with rubber 4 # with diameter of 8mm and length of 12mm is pressed and its incipient wavelength shifts 0 . 5 - lnm , its alarming level can be set as 1nm , and its response tune for petrol is 5 minutes
用直径为8mm 、长为12mm的4 # (上述配方)橡胶棒装备该传感头，传感头的初始波长预漂0 . 5nm ? 1nm时，传感器的漏油报警限可设定1nm ，对汽油的溶胀响应时间为5分钟。 |
| 9. | The tunable optical characteristics of the novel lpfgs are recognized during the study of their optical characteristics : ( 1 ) . the relationship between the resonant amplitude and the applied curvature radius in the bend - sensitive orientation of the novel lpfgs is linear , ( 2 ) . the relationship between the resonant amplitude and the applied transverse load in the wavelength - insensitive orientation of the novel lpfgs is linear , ( 3 ) . the relationship between the resonant wavelength shift of the novel lpfgs and the applied temperature is linear
在对新型长周期光纤光栅光学特性的研究中，我们发现了新型长周期光纤光栅的一些独特的可调谐性：新型长周期光纤光栅的谐振峰幅度和弯曲敏感方向所受的弯曲率呈线性关系；新型长周期光纤光栅在波长不敏感方向其谐振峰幅度和它所受的横向压力呈线性关系；长周期光纤光栅的谐振峰中心波长随温度的变化呈线性关系。 |
| 10. | The bragg wavelengths can be simulated by using coupled - mode theory and the results agree on the experiments . theoretical simulations show that the temperature dependant characteristics of few - mode fiber bragg gratings are similar to those of single - mode fiber bragg gratings . that is , each bragg wavelength shifts as a same rule when the temperature varies and the whole spectrum can maintain its profile
理论上的推导还给出了少量模光纤光栅的温度依赖特性与单模光纤布拉格光栅的温度依赖性相似,得到的结论为在少量模布拉格光纤光栅均匀受热时,它的几个反射峰具有相同的温度漂移,而且这个透射谱的形状不因为温度的改变而改变。 |
