FC Bayern DFB Cup campaign ended in the quarterfinals.
德国杯止步于四分之一决赛。
With international well-known high performance DFB laser.
选用国际著名品牌的高性能DFB 激光器。
The new DFB can provide good directional and frequency selectivity.
新的方向滤波器组具有良好的方向和频率选择性。
Recently, some geometrical image transforms based on the DFB have been introduced.
人们相继提出了许多基于方向滤波器组的几何图像变换方法。
In addition, the tune character of DFB diode laser is also described and analyzed.
并对该实验平台所选用的DF B半导体激光器的调谐特性进行了深入分析和讨论。
"Owen Hargreaves will go," Beckenbauer told the DFB-Doppelpass programme on German television.
“欧文·哈格里夫斯将要离开，”贝肯鲍尔在德国电视节目中告诉DF B - Doppelpass。
We have successfully developed an 8 channels time division sub-carrier semiconductor DFB laser wavelength locker.
我们研制成功8路时分副载波半导体DFB激光器波长锁定器。
In present commercial WDM systems, distributed feedback lasers (DFB-LD) are widely used as a single-mode tight source.
在目前的WDM系统中，分布反馈半导体激光器(DFB - LD)已被广泛地用作单频光源。
So it can be expected that two-segment DFB lasers will play important roles in future DWDM and multi-wavelength network.
因此，两段式d FB激光器可望在密集波分复用以及多波长网络中获得应用。
Using DFB LD as light source, the detection sensitivity has been greatly improved by light source modulation harmonic measurement.
采用分布反馈式半导体激光器作为光源，通过光源调制实现气体体积分数的谐波检测，显著提高了检测的灵敏度。
In this paper, the method and the equipment measuring modulation characteristic of DFB LD with spectrographic analysis are described.
本文介绍了利用光谱分析测量dfbLD调制特性的方法及装置。
The experiment shows that this technology can hopefully become one of the aided methods to improve single mode probability of DFB laser.
实验表明，镀膜技术可望成为改善DF B激光器单模工作的一种辅助方法。实验结果有助于理解相移对激射特性的作用。
This paper reports that the frequency responses of a direct-modulated DFB laser diode can be improved using an injection locking method.
验证了通过注入锁模方法，分布反馈(DFB)半导体激光器的频率响应可以得到明显的改善。
A numerical model for steady state analysis and analytical expressions for the AM and FM modulation responses of DFB lasers are presented.
给出了适于分析DF B激光器稳态特性的数值模型和分析振幅及频率调制响应特性的解析模型。
Now DFB is widely used to control over 90 species insects of agriculture, forest, fruit, vegetable, store grain, graziery, sanitation and so on.
目前，灭幼脲已被用于防治农林、果树、蔬菜、贮粮、畜牧、卫生等90多种害虫。
A kind of distributed feedback (DFB) diode laser module was developed for the use of Amplitude Modulation Cable Television (AMCATV) transmitter.
开发了一种用于光纤公用天线电视(CATV)的分布反馈激光二极管组件。
By means of pulse injection, the relation between lasing wavelength and chip temperature of distributed feedback laser (DFB-LD) has been obtained.
利用脉冲注入法测量了分布反馈激光器(DFB - LD)芯片温度与激射波长的关系。
The abnormal spectrum phenomenon of distributed feedback (DFB) laser embedded with RF circuit generates under gain-switching operation was analyzed.
对设有内置式RF电路的分布反馈(DFB)半导体激光器在增益开关工作状态下出现反常光谱的原因进行了分析。
A new type strongly gain coupled (GC) DFB laser and a new type self alignment spot size converter (SA SSC) are proposed and successfully fabricated.
提出并成功制作出一种新型的强增益耦合d FB激光器与自对准模式变换器单片集成器件。
The experimental results indicate that such polymer gratings have promising potentials for the fabrication of low-order DFB organic semiconductor lasers.
实验结果显示这种聚合物光栅在制作低次分布反馈有机半导体激光器中有潜在的应用。
The frequency of DFB LD was driven and controlled through such technology as constant current, temperature control in active area, wavelength lock and etc.
该方案通过采用恒流源、有源区温度控制以及波长锁定等技术方法来实现DFBLD的稳频驱动及控制。
The tuning mechanism of two-segment DFB lasers is explained in terms of the fundamental phase and amplitude reflection properties of the waveguide gratings.
两节DF B激光器的调谐机理可根据波导光栅反射特性的基本相位和幅度来解释。
It was not until 1970 that it approved an official women's league. Only in 2001 did the DFB allow the top clubs to create their own subordinate governing body.
直到1970年它才批准正式举办女子足球联赛，而直到2001年才允许顶尖俱乐部设立各自的下属管理机构。
The studies on an optical soliton source which is prepared using a gain -switched DFB laser, a F-P optical filter and an Er-doped fiber amplifier are reported.
报道了利用增益开关分布反馈半导体激光器、F-P光学滤波器及掺饵光纤放大器研制成光孤子源的研究工作。
The previous season had seen him narrowly miss out winning the title on goal difference to VfB Stuttgart while also losing the DFB Pokal final to Bayern on penalties.
之前一个赛季，他的球队由于净胜球之差，在斯图加特之后屈居联赛亚军，而德国杯赛上又以点球输给拜仁。
Based on coupling-wave equation, two-segment DFB lasers have been analyzed, and implicit expression of their carrier density and emission wavelength has been obtained.
利用耦合波方程，对两段式DF B激光器进行理论分析，得出了激光器激射工作时两段载流子浓度和激射波长之间所满足的隐含表达式。
DFB is called "green pesticide" with the characters:individual mode of action, broad spectrum, high performance, hypovirulence, low cost, long residual efficient duration.
灭幼脲以其独特的杀虫方式，及其广谱、高效、低毒、低成本、残效期长等优点，被誉为“绿色农药”。
By comparing the various hardware devices, the cheap LED is chosen as the light source, which is solved the problem of high-cost and hard to maintenance brought by using DFB-LD.
通过对比各种硬件设备，选择廉价的LED作为光源，解决了DF B激光器所带来的成本高昂，维修困难的难题。
By comparing the various hardware devices, the cheap LED is chosen as the light source, which is solved the problem of high-cost and hard to maintenance brought by using DFB-LD.
通过对比各种硬件设备，选择廉价的LED作为光源，解决了DF B激光器所带来的成本高昂，维修困难的难题。
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