dfb

The Cavity enhanced absorption spectroscopy based on a tunable DFB diode laser ( TDL-CEAS ) was described.

介绍了用DFB型 可调谐半导体激光器做光源的腔增强吸收光谱 ( TDL -CEAS ) 技术.

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Study on the Fast Self-pulsation in Three-section DFB Laser

三区DFB激光器高速自脉动的研究

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The laser feedback interference in λ/ 4 phase-shifted index-coupled and gain-coupled Distribute Feedback laser diodes is analyzed. The threshold gain and oscillation frequency variation in DFB laser diode are theoretically deduced, and present the expression of complex feedback sensitivity.

分析了λ/4相移折射率耦合型及增益耦合型分布反馈激光器的自混合干涉效应，推导出分布反馈激光器的增益及频率的变化，并给出复反馈灵敏度系数表达式。

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FC Bayern DFB Cup campaign ended in the quarterfinals.

德国杯止步于四分之一决赛.

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In this paper mechanisms of fast self-pulsation in three-section DFB laser have been analyzed and numerically simulated on the basis of which in double-section DFB laser.

基于双区DFB激光器件自脉动研究的基础上，对三区DFB激光器件的自脉动特性进行了讨论和数值模拟分析，并对提高自脉动频率的方案进行了研究。

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Using rates equations and couple wave equations, we present the threshold analysis of DFB diodes on random facet phases, with multimode differences, we discuss the influence on the diodes as well.

应用速率方程及耦合波方程对半导体DFB激光器的边界相位对器件的阈值特性影响进行了分析，并就各模式之间的差异讨论了其对器件的影响。

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Yet until recently the DFB was highly successful.

足协的改变姗姗来迟,这并不意外.

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Using transfer matrix method with rate equations and couple wave theory, We present threshold analysis of two electrodes DFB diodes. With collateral arithmetic, we present several modes characteristics in threshold conditions.

用传输矩阵法分析了双电极DFB激光器的阈值特性，在分析中我们运用了速率方程理论结合耦合模理论，用并行算法给出了各个模的阈值特性。

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Stilles Gedenken: Franz Beckenbauer , Steffi Jones und DFB-Generalsekret? r Wolfgang Niersbach standen vor dem Sarg.

在球场外大屏幕前的人们也参与着葬礼.

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Threshold Analysis of Two Electrodes DFB Diodes

双电极DFB激光器阈值特性分析

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A self aligned constricted mesa ( SACM ) high speed 1.55μ m MQW DFB laser is developed.

采用一种自对准压缩台面结构制作高速1.55μmDFB激光器.

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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。

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The general expression of the threshold gain and frequency in the DFB lasers was deduced by using the coupled wave function.

利用耦合波方程，推导出分布反馈激光器自混合干涉频率及增益变化的表达式。

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The DFB, with 6.3 m members, acts like a state within a state.

德国足协拥有6300万会员, 其职能相当于“国中之国”.

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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。

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It is revealed from the theoretical analysis, experimental study and computer simulation of IM/ DD optical transmission systems that, compared with MQW DFB laser, the lower total differential quantum efficiency of bulk DFB laser makes adiabatic chirp dominate its total chirp.

通过理论分析、实验和计算机模拟得到：进行直接强度调制时，体块型DFB激光器的总微分量子效率（与多量子阱DFB激光器相比）过低，从而导致其绝热啁啾占激光器啁啾的主要部分；

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Mit mehr als 6,3 Millionen Mitgliedern ist der Deutsche Fu? ball-Bund ( DFB ) der mitgliederst? rkste Sportverband der Welt.

拥有630万成员的德国足球联盟 ( DFB ) 是世界上会员最多的体育俱乐部.

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All-optical signal regeneration is a key technique needed for the ultrahigh speed and large capacity all-optical networks, and all-optical recovery is the critical technique in all-optical regeneration. The best project of time recovery is based on the self-pulsation in multi-section DFB laser.

全光信号再生技术是超高速大容量全光网络中的核心技术，其中全光时钟提取是全光再生技术的关键，基于多区DFB激光器件自脉动进行时钟提取是最佳选择方案。

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