Zobrazeno 1 - 10
of 209
pro vyhledávání: '"色散"'
Autor:
盛夏1, 马涛2, 刘昊1, 冯佳
Publikováno v:
Dianxin kexue, Vol 40, Iss 5, Pp 23-37 (2024)
随着全球5G网络的规模化商用及移动互联网流量的迅猛增长，更为丰富的无线频谱资源得以释放，高速率光模块在无线前传网络中的需求日益凸显。聚焦于50 Gbit/s前传光模块的关键技术，深
Externí odkaz:
https://doaj.org/article/b795365d3a7144e79c055b0969782709
Autor:
Vivek, R. K. Dutta
Publikováno v:
Journal of Natural Fibers, Vol 19, Iss 14, Pp 7534-7541 (2022)
The paper presents the bearing ratio behavior of sand overlying clay with two woven and two non-woven treated coir geotextiles at the interface. The chemicals such as p-aminophenol, sodium periodate and sodium hydroxide were used to treat the coir ge
Externí odkaz:
https://doaj.org/article/a367592b37544664894114eced760a2c
Autor:
Seyda Eyupoglu, Nigar Merdan
Publikováno v:
Journal of Natural Fibers, Vol 19, Iss 14, Pp 9248-9258 (2022)
In this study, novel cellulosic fiber was obtained from Lavandula spp. (lavender) plant stem. The physico-chemical, morphological, thermal, and mechanical behaviors of lavender fibers were characterized. The energy dispersive X-ray analysis result of
Externí odkaz:
https://doaj.org/article/bf232802cbde45ff86ff87e0277a6360
Publikováno v:
Guangtongxin yanjiu, Vol , Pp 56-60 (2021)
为了获取优质的超短脉冲光源，文章将自相似脉冲与光栅对结合，通过数值模拟方法详细分析了自相似脉冲的演化和压缩过程。首先将半高全宽（FWHM）为1 ps、能量为45 pJ的高斯脉冲入射到色
Externí odkaz:
https://doaj.org/article/60431e788ac649e6b26decafd1c68c0e
Publikováno v:
Guangtongxin yanjiu, Vol , Pp 25-28 (2020)
针对高速相干光通信系统,融合信号功率波形与幅相特征提出了一种大范围和高精度的色散（CD）监测技术。搭建了112 Gbit/s （28 GBaud）偏振复用正交相移键控（PDM-QPSK）仿真系统,证明了该方法
Externí odkaz:
https://doaj.org/article/378bbf46ebb74f76b9159b750048d502
Publikováno v:
Guangtongxin yanjiu, Vol , Pp 36-41 (2021)
针对传统C波段高速光模块传输距离过短的问题，文章对一种准相干接收技术进行了研究，结合现有25 Gbit/s光模块进行了实验，并讨论了准相干接收技术的应用方案。研究发现，准相干接收技
Externí odkaz:
https://doaj.org/article/8c37143bfd6447f68d57e9811d14d03d
Publikováno v:
Guangtongxin yanjiu, Vol , Pp 12-16 (2020)
针对两对被时间延迟分开的脉冲会根据相位和时延的变化影响脉冲间的传输特性,且在脉冲重叠区域会受到交叉相位调制的影响发生干涉现象的问题,文章提出了在色散渐减光纤环镜中观察脉
Externí odkaz:
https://doaj.org/article/c5a016f0c0bc4fe7abcbce15ac2b0486
Publikováno v:
Guangtongxin yanjiu, Vol , Pp 24-27 (2020)
针对下一代动态光网络,光纤长度可能根据链路需要随时变化,以及由于光纤老化造成色散参量变化等因素可能造成链路中的色散值在接收端很难提前预知,因此要求未来光网络节点中的接收端
Externí odkaz:
https://doaj.org/article/93663d36e35a485291497f78b99a9a9f
Publikováno v:
Guangtongxin yanjiu, Vol , Pp 1-4 (2018)
全光混沌因其结构简单,混沌信号具有类噪声、不可预测等特点被广泛应用于保密通信领域和真随机数发生器领域。文章提出利用特定色散曲线的相位作用与激光器的内外腔的非线性效应来平
Externí odkaz:
https://doaj.org/article/cbf2a10213984fc8b06a03fe6da6a00f
Publikováno v:
Guangtongxin yanjiu, Vol , Pp 32-35 (2018)
文章提出一种可以传输42个轨道角动量（OAM）模式的环形光子晶体光纤,该光纤由中心空气孔、环形高折射率层以及包层构成,其中包层是由方形空气孔与圆形空气孔共同组成。利用有限元法对
Externí odkaz:
https://doaj.org/article/b3e9576a78b44c3d9fcfdd6616ab33bd