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目前哈特曼(Hartmann)传感器被越来越广泛的应用.文中介绍了Hartmann波前传感器原理,利用Matlab仿真了单束、双束光入射Hartmann波前传感器时的CCD上光强度图样,结果依然遵循夫琅和费衍射. 相似文献
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随着视频业务的飞速发展,4K产业链进入整体成熟期,运营商纷纷发布4K业务和相关品牌,4K发展进入“快车道”.运营商期望利用这场视频业务盛宴,在满足消费者优质体验的同时,也带来新的市场增长点. 相似文献
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光传送网(OTN)技术由于其大带宽、灵活的业务汇聚与调度能力、完善的保护机制和丰富的OAM等优势,设备已经大规模部署于运营商的骨干、本地网的核心汇聚层,随着乡镇层面业务需求的驱动,OTN设备逐步下沉,设备厂商也推出了适用于县乡层面的集成式WDM/OTN设备.其设备具备如下特点. 相似文献
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Along with the emergence and maturity of 100Gbit/s technologies, numbers of trial and commercial 100Gbit/s Wavelength Division Multiplexing (WDM) systems have been established worldwide. The research- oriented lab tests of 100Gbit/s WDM systems were done by China Unicom in 2012. The 100Gbit/s technologies of polarization multi-plex-quadrature phase shift keying with co-herent detection from multiple vendors have been studied. There are some further issues to be specified before the commercial application of 100Gbit/s WDM system is implemented in large scale in backbone network, including optical performance parameters, optical performance monitoring of 100Gbit/s system, protection mechanism, selection of client interface and comprehensive Operation, Administration and Maintenance (OAM). 相似文献
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