本论文从基于光纤模式滤光检测的机理入手，致力于研究一类新型的基于模式滤光检测的光纤化学与生物传感器。
In this thesis, kinds of novel fiber-optic chemo - and bio - sensors based on mode-filtered light detection (MFLD) were presented, originating from the proposition of MFLD mechanism.
分离光纤线路中的两个偏振模式对于提高偏振模色散补偿的精度和速度有重要意义。
Splitting two modes from an optical fiber line is of great importance for the accuracy and speed of compensation.
接着推导了阶跃折射率平面介质波导和圆光纤的正交模式——包括束缚模式和辐射模式。
Then the mode series of step index planar dielectric waveguide and circular optical fiber are studied, including propagation modes and radiation modes.
《光纤通信技术》课程教学做一体化教学模式研究与探讨是教学改革的有益尝试。
The research and discussion on "Integration of teaching" of "Optical Fiber Communication Technology" teaching model is a good attempt.
本文对相位匹配条件下光纤波导中的受激四光子混频(SFPM)过程的模式问题进行了理论和实验研究。
A study on the mode under the condition of phase-matching of stimulated four-photon mixing (SFPM) in optical fiber waveguides has been performed.
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。
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.
利用全矢量正交函数模型对空气孔辅助光纤的模式截止特性进行了讨论。
Using full vector orthogonal function model of the auxiliary air hole pattern of cut-off characteristics of optical fiber were discussed.
为了满足超高速、超大容量光纤通信的要求，人们不断研制出新的通信模式。
In order to satisfy the request of superhigh-speed, superhigh-capacity optical communication system, lots of optical communication models appear.
本文应用干涉技术测量高双折射偏振保持光纤中模式耦合点的空间分布。
A interferometric scheme for measuring the spatial distribution of mode coupling in high-birefringent polarization-maintaining fiber is presented.
为了计算周期结构包层多孔光纤的等效阶跃折射率，采用了全矢量基本空间充填模式法。
In order to calculate the equivalent step index of the periodic structure of the cladding holey optical fiber, all-vectorial fundamental space filling mode approach was utilized.
提出了基于光纤布拉格光栅(FBG)包层模式的折射率传感方案。
A new refractive index sensing scheme based on the cladding modes of fiber Bragg grating (FBG) is presented.
使用光纤锥可以通过其产生的倏逝场，来耦合微盘腔中的回音壁模式，从而获得对微盘腔光学性质的考察。
A fiber taper can evanescently couple to whispering gallery modes (WGMs) in a planar silica microdisk for observing the optical properties of the microdisk cavity.
该方案克服了单模光纤对极化模式集体旋转影响，且不需要校正参考系。
This scheme can overcome the influence of collective rotation noise of polarization mode in single mode fiber and can work without Shared reference frames.
采用光束传播法研究了实心掺锗光子晶体光纤布拉格光栅（PCFBG）的模式截止特性。
The modal cutoff properties and exciting conditions of higher order resonant modes for Ge-doped photonic crystal fiber Bragg grating(PCFBG) are investigated using beam propagation method(BPM).
研究表明：类矩形芯光子晶体光纤的模式双折射比普通椭圆保偏光纤至少高一个数量级。
The numerical results show that the modal birefringence of near_rectangle core PCF is at least one order of magnitude higher than the conventional elliptical polarization_maintaining fibers (PMFs).
根据选择性激发能够有效减少模式色散从而能提高带宽的原理，提出了一种针对塑料光纤通信的新复用技术。
A new multiplexing technique for polymer optical fiber is proposed, which is based on the principle that selective excitation can effectively decrease the modal dispersion and increase the bandwidth.
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。
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.
本文基于对上述模型的设计，讨论了谐振腔中工作物质的摆放，引导光束并且进行模式选择的选模光纤和锁模器件。
The place rule of work material, laser fiber to select mode and mode locking apparatus are researched in this paper.
该方法与以往所做的对沿光纤传播的包层模式功率的损失特性的简单分析对比，测量结果与理论曲线十分相符。
The method is compared with the simple analysis for loss characteristics of cladding modes propagating through the fiber and the measured results are in good agreement with theoretical curves.
应用全矢量超格子叠加模型分析了双芯光子晶体光纤（PCF）的模式特征。
The modal characteristics of dual core photonic crystal fibers(PCFs) are analyzed by a full vector supercell lattice overlapping model.
在光线泄漏区，传感光纤包层模式功率随着液体参量的改变而改变，从而锥形光纤探头探测到的输出功率也随之改变。
In the leaky ray zone coat mode power changes with liquid parameters, so output power of the tapered optical fiber detector changes too.
采用高斯近似和局域模式耦合理论，对阶跃折射率分布和抛物线折射率分布椭圆芯单模光纤熔接接头损耗进行了分析、计算和讨论。
By the gaussian approximation and local mode-coupled theory, fused splice loss of step and parabolic index single mode elliptic core fibers have been analyzed, calculated and discussed.
围绕光纤耦合效率相关的量：激光模式、发散角、数值孔径、焦斑直径、精密光纤耦合器等问题进行了讨论；
The quantity in relation to the coupling efficiency of an optical fiber:lasing mode, divergence angle, numerical aperture, focal diameter and precision optical fiber coupler are discussed.
我考虑这可能是回音壁模式沿光纤表面的缓慢传输。
I consider slow propagation of whispering gallery modes along the fibre surface.
模式双折射可达10-3量级，该数值比传统椭圆保偏光纤至少高一个量级；
The modal birefringence can attain the order of 10-3 that is at least one order of magnitude higher than that of conventional elliptical polarization-maintaining fibers.
介绍了光纤旋转技术，采用正弦旋转技术可有效降低光纤的双折射并增加模式耦合。
A fiber spinning technique is introduced, the sinusoidal-rate spinning can effectively decrease the birefringence and increase the mode-coupling of the fiber.
多模光纤存在严重的模式色散，其带宽距离积受限。为此，分析了多模光纤的带通特性。
Becouse multimode fiber has high modal dispersion which limits to its bandwidth distance product, the band pass characteristics of the multimode fiber was analyzed.
利用检测单模双折射光纤弯曲传输损耗装置测绘了光纤的弯曲损耗图及光纤弯曲传输模式图。
Using the instrument for the transmission loss of single mode of winding birefringence optical fiber, the spectrogram of loss and the graph of mode density are obtained.
采用有限元法分析了掺铒孔辅助导光光纤的模式特性；
The finite element method is applied for solving the modal field of the EDHALF.
采用有限元法分析了掺铒孔辅助导光光纤的模式特性；
The finite element method is applied for solving the modal field of the EDHALF.
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