endeavour 发表于 2003-5-15 19:55:00

请指教

100Gwdm filter 的100G是否指各个矩形通带的间隔？一个100G的薄膜dwdm，怎样换算它的各个通带中心波长的间隔？100G与 dwdm的传送速率10G/s 又有什么联系吗？有没有公式表达这种联系？ 小弟刚入们，看了一些文章，对这些问题好疑惑，希望大家能指教！
thank you

endeavour 发表于 2003-5-17 01:48:00

请指教

为什么没人回复我呢？是否我上面的说法不对呢？

ppz555 发表于 2004-1-7 05:18:00

请指教

是
100g=100G hz

oevisitor 发表于 2004-1-7 13:55:00

请指教

1. Generally speaking, 100G means the channel spacing between two adjacent channels is 100G Hz.
2. 100GHz is roughly about 0.8nm at 1550nm.The basic equation is C = L*N, where C is the speed of light, L is the wavelength, and N is the frequency. Take the difference, then you would get the formula.
3. 100GHz labelled in a WDM filter is usually not directly related to data speed 10G/s. 100GHz is the WDM channel spacing and 10G/s is the data rate carried in that channel. Because of a 10G/s data modulation, two side bands 100GHz+/-10GHz would be created around the central frequency of that channel.

There are a lot to read and to learn in fiber optics and optical networks. Do not be frustrated. The more you read, the more you learn. You will become an expert.

无知无畏 发表于 2004-1-7 21:40:00

请指教

解释的真明白,佩服!高人一位!
信号调制时候会有边带,所以有单边带,双边带调制,残留边带调制等等
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