光滤波器

By using optical filter to filter out mixing light, the wavelength conversion of signal laser can be obtained.

利用光学滤波器，滤出四波混频分量，即可实现信号光的波长变换。

This filter consists of two parallel polarizers,an electro-optical crystal and a two-zone half-wave plate.

该滤波器由两个透射光轴平行的偏光镜，置于其间的一个电光晶体和一个二区域λ/2波片组成。

The packet clock then goes into SOA to reduce the low-frequency amplitude noise and temporal fluctuation with the self-gain modulation effect of SOA.

利用半导体光放大器的自增益调制效应对组合滤波器提取的帧时钟进行整形，降低帧时钟的幅度噪声和时间抖动。

It′s easy to control the thickness of the spacer of the device when employing the fused quartz as the material of the spacer,so the thin film interleaver can satisfiedly meet the demand of the narrow wavelength gap for the DWDM system.

采用间隔层为熔融石英的薄膜法布里-珀罗滤光片作为基本结构的光学梳状滤波器可以比较容易地控制各腔的厚度，因而能精确地达到波分复用系统中波长间隔非常窄的要求。

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。