谐振

The FSR is an important parameter characterising ring resonators.

FSR是衡量光纤环形谐振腔特性的一个重要参数。

This paper attempts to associate PFC technology with Quasi-Resonant DC/DC Converter and Synchronous Rectifier technology, to work out a novel switching power supply with higher efficiency and low contamination, which both achieved high power factor, improved effecting on electrical network and ensured high efficiency, furthermore, it is easy to be realized and controlled in circuit.

本文首先阐述了开关电源、功率因数校正技术和同步整流技术的发展及现状，对DC/DC变换的拓扑结构进行了选择，确定了带有隔离的准谐振(Quasi-Resonant)反激型电路，可以有效地降低损耗；接着本文对几种常见的PFC拓扑电路进行分析对比，从中选择了BOOST型电路，对工作在临界状况下的电路进行了分析，采用跟随输入电压的升压变换新技术，减小了电感体积，同时降低了开关管的电压应力，既简单又有效地实现了功率因数校正，并发现此技术值得推广；由于反激型变换器的效率一般都较低，所以本文在传统同步整流技术基础上对其加以改进，设计出一种新颖、高效的同步整流方案。

The resulting diplexers require fewer resonators than conventional E-plane diplexers to achieve comparable performance.

这种双工器用比传统的E面双工器少的谐振腔而到达相同的性能。

The results show that the eigenstates of akq exhibit antibunching effect when x=|

结果表明，当q变形相干态中谐振子的强度x=|z|2在某些区间内取值时，akq的本征态将呈现反聚束效应，并且这一效应明显地受到q参数的影响。

Three methods for loss measurement of a passive resonant cavity are involved in this paper.

本文采用三种方案实现了无源谐振腔损耗的测量。

The results can be applied to the design of resonant cavity and offer theoretical basis for reducing the thermal effect in laser system.

所得结果可以用于激光谐振腔的设计，为减小激光系统的热效应问题提供了理论依据。

A fiber grating is used for output of resonant cavity with 60% reflectivity.

反射率为60%的光纤光栅用作光纤激光器谐振腔的输出，3dB带宽为016nm。

The results were helpfull for the optimization of laser efficiency and resonant cavity design.

分析结果对于优化激光器效率、改进谐振腔设计具有一定的参考价值。

With the Finite-Difference Time-Domain method, the characteristic of electromagnetic field within the vacant resonant cavity was analyzed.

采用时域有限差分法数值求解Maxwell方程，分析了MPT无加载谐振腔内的电磁场特性。

In order to improve the power of the laser, high reflectance film is coated on the rear face of the resonant cavity.

为了获得高的增益和激光的收集利用使得阈值电流降低，提高量子效率和激光的输出功率，在谐振腔的腔面上镀制光学薄膜。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。