排序方式: 共有181条查询结果,搜索用时 46 毫秒
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3R光电波长变换器对WDM网中串扰的影响 总被引:2,自引:1,他引:1
具有光叉连接(OXC)节点的波分复用(WDM)光网络中,串扰是一个重要的限制因素。本文针对基于分送耦合开关的OXC结构,分析了相干和非相干串扰引入的光功率恶化并进行了仿真计算。结果表明相干串扰是影响传输质量的重要因素,串扰引起的光功率恶化主要取决于复用波数M,而与输入光纤数N关系不大。如果在OXC节点内采用3R光电波长变换器(OEWC),串扰对系统的影响会降低。 相似文献
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We propose a novel scheme for synchronous optical sampling based on multicast parametric process. The linearly chirped and time-broadened pulses are utilized to replace the traditional mode-locked sampling pulses. An optical sampling rate of 80 Gbit/s is realized by using only one sampling source with repetition rate of 10 GHz. 相似文献
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Investigation on bismuth-oxide photonic crystal fiber for optical parametric amplification 总被引:1,自引:0,他引:1
A hexagonal solid-core bismuth-oxide micro-structure fiber is developed to balance its dispersion and nonlinearity.This simulation and calculation results show that the bismuth-oxide photonic crystal fiber(Bi-PCF) has near zero dispersion around 1550 nm.Its dispersion slop in the communication wavelength range is also relatively flat.Moreover,both nonlinear coefficient and model field distribution are obtained.Compared with the experimental results by SiO2-PCF,it can be seen that the Bi-PCF shows excellent characteristics for the optical parametric amplification(OPA). 相似文献
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本文提出了一种新的WDM光网络功率管理方案,即同时考虑同频串扰和自发辐射噪声的总功率。给出了方案的数学模型,并进行了仿真计算。结果表明,同频串扰对WDM光网络的规模和光信号的质量有着重要的影响。对于使用机械光开关的WDM关网,串扰对系统的影响程度主要取决于解复用器的隔离度。对串扰较小的网络,提高输出EDFA的增益和监测点光功率设定值会提高光信号质量。 相似文献
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