Wavelength-shift detection is the key technology of fiber Bragg grating sensor.
光纤光栅波长移位检测技术是光纤光栅传感器的关键技术之一。
These techniques include Raman scattering, in which light returns with a shift in wavelength as a result of atomic or molecular laser excitation.
这项技术包含拉曼散射，这种散射指反射光会因为原子或分子的激发而有一个波长上的移动。
Moreover, we deduce the linear relationship between reflected wavelength shift of fiber grating and vertical displacement of cantilever beam which the fiber grating is sticked on.
并根据材料力学原理推导了光纤光栅波长漂移量与侧向位移的线性调谐关系。
The shift of reflective wavelength of one FBG under external strain is translated into a change in time interval of the optical pulse from another FBG drived by a PZT plate.
在外界拉力下一个光纤布拉格光栅反射波长的漂移被转变成从另一个被压电陶瓷片调制的光栅反射的光脉冲间隔的变化。
The peak gain wavelength will cause blue shift of some ten nanometers after coating with the injection of the same level.
在相同的注入水平下镀膜后峰值增益波长会产生几十纳米的蓝移。
The relative shift of Bragg center wavelength increased linearly with the change of axial stress, radial stress or temperature, and it kept the linear relationship in a large range.
布喇格中心波长的偏移与轴向应力、径向应力和温度等变化量均呈极好的线性比例关系，且在较大的测量范围内一直保持线性关系。
Detection of wavelength shift is the key technique in the application of fiber grating sensing network.
波长漂移量的检测是实现光纤光栅传感网络的关键技术。
The demodulation of wavelength shift is the key technology in the application of fiber grating sensors.
光纤光栅波长位移的解调是实现传感系统的关键技术。
The relation between relative shift of Bragg wavelength and the strain applied on the sensor is derived theoretically, and the analytical expression of strain sensitivity is also given.
基于理论分析，得出了此传感结构的应变与布拉格波长相对位移量之间的关系，给出了应变灵敏度的解析表达式。
A ruggedized design method for shaping diode laser beams, which can totally eliminate the effects caused by the temperature change or laser wavelength shift on output beam direction, is described.
本文叙述了一种变形双棱镜的加固设计方法，它能够完全消除温度变化与激光波长漂移对光束输出方向的影响，适于对二极管激光束进行变形。
Introduce MAXIM's fiber optic device and surround analog device be use to optical module. There are several ways to keep laser temperature constant to avoid wavelength shift.
介绍MAXIM的光器件和用于光模块的周边模拟器件，以及保证激光二极管温度恒定以防止波长偏移的几种方法。
By analyzing variation of FBG Bragg wavelength with temperature and strain, a metal bridge structure for Bragg wavelength shift compensation is demonstrated.
通过对光纤光栅布喇格波长随温度及应力变化的分析，设计制作了金属桥式结构来补偿光栅的温度漂移。
Experiment shows that the effect of wavelength and temperature control is good, and the wavelength shift due to aging can be restrained.
实验研究表明，该系统的温度和波长控制效果较好，而且能抑制因老化引起的波长漂移。
The techniques for multiplexed fiber grating sensors, espacial detection of multiple wavelength shift are discussed.
评述了复用光纤光栅传感器的有关技术，着重讨论了多波长移动探测解调技术。
Experiments indicated that serial assistants could make the best absorption wavelength of the dyestuffs shift towards long wave, and they present better level dyeing and hyperchromic effect.
实验表明，所得系列产品可使染料的最佳吸收波长向长波方向偏移，具有较好的匀染增深效果。
The amount of the temperature or strain imposed on this device was obtained by measuring the electric signals changing with the shift of resonant wavelength.
当输入为单波长信号光时，可以通过测量探测器输出的电信号来获得光纤光栅所承受的温度和应变信息。
Control pulse is coupled into this pulse shaper by wavelength division multiplexer. Nonlinear phase shift of signal laser is induced by control pulse because of cross phase modulation.
该全光脉冲整形器利用波分复用器将控制光脉冲引入光纤环形镜中，控制光脉冲由于交叉相位调制在信号光上产生了非线性附加相移。
Accurately measuring the shift of wavelength is the key technique for sensors based on fiber Bragg grating (FBG).
波长漂移量的精确检测是光纤光栅(FBG)传感器的关键技术。
For other incident angles the lateral shift has the same order of magnitude as the wavelength.
在其他角度入射时横向偏移与波长在一个数量级。
Dynamic strain caused Bragg wavelength shift demodulation device is summarized and the method to realize the very high demodulation resolution of Bragg wavelength shift is given.
总结了动态应力产生布拉格波长偏移的解调装置并提出用其实现微尺度计量所需要的高分辨力的布拉格波长解调方法。
Relationship modal of resonant wavelength shift and external magnetic field intensity is concluded.
得出了谐振波长变化量与外界磁场强度的关系模型。
Quantitative analysis shows that the temperature and strain sensitivities or shift direction of resonant wavelength for such a LPFG are dependent on fiber types and coupling mode orders.
定量分析表明谐振波长的温度和轴向应变灵敏度及其变化方向与光纤类型、模式耦合的阶次等因素有关。
As a sensor element, fiber optic and grating transformed the information into reflecting wavelength shift. It also named wavelength demodulation which is immune for light power waving and system loss.
作为传感元件，光纤光栅将被测的信息转化为其反射波长的移动，即波长解调，因此不受到光功率波动和系统损耗的影响。
The bending of simple supported beam make the resonance peak wavelength of each mode of TFBG shift and resonance peak amplitude unchangeableness.
简支梁的弯曲只让TF BG各模式的谐振峰波长发生了漂移，而各模式的谐振峰的幅度没有改变。
Furtheremore, the analysis indicates that the Doppler frequency shift cannot be Used to explain the wavelength self-scanning initially towards the longer wavelength.
进一步的分析显示，多普勒频移不能解释朝长波方向扫描的波长自扫描现象。
Quantitative analysis shows that the temperature and strain sensitivities or shift direction of resonant wavelength for LPFG are dependent on fiber types and coupling mode orders.
定量分析表明谐振波长的温度和轴向应变灵敏度及其变化方向与光纤类型、模式耦合的阶次等因素有关。
A new method is presented to detect the wavelength shift on in2fiber Bragg gratings.
提出并实验了一种探测光纤光栅波长移动的新方法。
A new method is presented to detect the wavelength shift on in2fiber Bragg gratings.
提出并实验了一种探测光纤光栅波长移动的新方法。
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