Results 81 to 90 of about 12,825 (216)
Photonics Breakthroughs 2024: Lithium-Niobate Photonics for Dense Wavelength-Division Multiplexing
IEEE Photonics JournalThe growing demands for ultrahigh-capacity data transmission require advanced multiplexing for multiple channels together with high-speed modulation. The dense wavelength-division multiplexing (DWDM) technology has been widely utilized over the past few ...
Hongxuan Liu +3 more
doaj +1 more source
, 2017 Covert communication offers a method to transmit messages in such a way that it is not possible to detect that the communication is happening at all. In this work, we report an experimental demonstration of covert communication that is provably secure ...
Arrazola, Juan Miguel +10 more
core
New-generation DWDM fiber grating devices
SPIE Proceedings, 2000 Using a recently developed inverse scattering layer-peeling algorithm and a modified stroboscopic grating writing technique, we have designed and successfully demonstrated novel grating devices, such as 50GHz-bandwidth dispersion compensators and square dispersionless filters, suitable for future high performance DWDM optical systems.
openaire +2 more sources
IET OptoelectronicsAn enhanced transmission is presented in a multiple‐input‐multiple‐output (MIMO) dense‐wavelength division multiplexed (DWDM) free‐space‐optical (FSO) communication link using diversity coding techniques under the effect of turbulent weather phenomenon ...
Ebrahim E. Elsayed +7 more
doaj +1 more source
Guangtongxin yanjiu, 2004 文章分析了密集波分复用（DWDM）光纤通信系统中偏振模色散（PMD）的特点,并讨论了单信道PMD补偿法在DWDM多信道系统PMD补偿中所遇到的困难,提出了基于最坏通道补偿法来补偿DWDM多信道系统中PMD以及多信道PMD监测法,并讨论了这种方案的可行性.
陈林, 杨伯君, 张茹, 张晓光
doaj
, 2018 В данной статье представлена технология системы DWDM и принцип её функционирования.
Danil S. Koikov; FGBOU VO \\"Omskii gosudarstvennyi tekhnicheskii universitet\\" +1 more
openaire +1 more source
, 2019 Using a novel geometrically-shaped four-dimensional modulation format, we transmitted 11x200 Gbit/s DWDM at 4.8 bit/4D-sym over 7,925 km and 11,700 km using EDFA-only and hybrid amplification, respectively.
Alvarado, Alex +7 more
core +1 more source
Guangtongxin yanjiu, 1999 本文阐述了ＤＷＤＭ 系统对ＥＤＦＡ 的要求和ＥＤＦＡ 为达到这些要求的几种实现方法。并给出了ＤＷＤＭ 用ＥＤＦＡ 级联和增益锁定的实验结果。
龙浩, 黄宣泽, 张学勇, 印新达
doaj
Рекорд российских разработчиков оборудования DWDM. [PDF]
LAST MILE Russia, 2019 17 декабря 2018 года московской компанией OOO "T8" проведен публичный эксперимент, в котором была продемонстрирована передача сигнала со скоростью 200 Гбит/с на одной несущей на расстояние 520 км в одном пролете. Передача была осуществлена с помощью серийного оборудования системы DWDM "Волга" производства "Т8" с использованием оптического волокна, в ...
openaire +1 more source
Field-Trial of Machine Learning-Assisted Quantum Key Distribution (QKD) Networking with SDN
, 2018 We demonstrated, for the first time, a machine-learning method to assist the coexistence between quantum and classical communication channels. Software-defined networking was used to successfully enable the key generation and transmission over a city and
Bi, Y. +8 more
core +1 more source