Results 261 to 270 of about 307,428 (330)

A GAN Based Soft Failure Detection and Identification Framework for Long-Haul Coherent Optical Communication Systems

Journal of Lightwave Technology, 2023
The rapid progress of 5G, the internet of things (IoT), high-definition online video, and cloud computing have raised high requirements for the capacity of optical networks.
Huazhi Lun, Mengfan Fu, Yihao Zhang, Hexun Jiang, L. Yi, Weisheng Hu, Q. Zhuge   +6 more
semanticscholar   +1 more source

Accuracy Enhancement of Moments-Based OSNR Monitoring in QAM Coherent Optical Communication

IEEE Communications Letters, 2020
Optical signal-to-noise ratio (OSNR) is an important parameter in coherent optical communication systems to monitor the quality of the received signal and the transmission-link fault.
Yuanyuan Ma, M. Gao, Lei Wang, Yanping Sha, Weidong Shao, G. Shen   +5 more
semanticscholar   +1 more source

Power-Efficient ASIC Implementation of DSP Algorithms for Coherent Optical Communication

Scalable Uncertainty Management, 2020
Coherent optical communication critically relies on efficient digital signal processing (DSP). We outline the application-specific integrated circuit (ASIC) implementation flow for DSP algorithms and discuss approaches to reducing the digital ASIC power ...
P. Larsson-Edefors, E. Börjeson
semanticscholar   +1 more source

Coherent Optical Communication

Asia Optical Fiber Communication and Optoelectronic Exposition and Conference, 2008
Optical coherent receivers with subsequent DSP show great promise as enabling technologies for ultra-high information rate optical transmission systems. DSP alleviates the need to lock the phases of the LO and transmitter signal, which is one of the limiting factors for the use of coherent receivers in the optical domain.
openaire   +1 more source

40 Gb/s Secure Coherent Optical Communication Based on Electro-Optic Phase Feedback Encryption

IEEE Photonics Technology Letters
In the current context of information explosion, securing the physical layer in the backbone networks of coherent optical communication is vitally important.
Xulin Gao, W. Gu, Zhitao Deng, Xinyi Li, Jinyang Ye, Yuehua An, Shubo Bi, Anbang Wang, Yuncai Wang, Yuwen Qin, Zhensen Gao   +10 more
semanticscholar   +1 more source

Coherent chaotic optical communication of 30 Gb/s over 340-km fiber transmission via deep learning.

Optics Letters, 2022
Chaotic optical communication has attracted much attention as a hardware encryption method in the physical layer. Limited by the requirements of chaotic hardware synchronization, fiber transmission impairments are restrictedly compensated in the optical ...
Zhao Yang, Junxiang Ke, Q. Zhuge, Weisheng Hu, L. Yi   +4 more
semanticscholar   +1 more source

Coherent Optical Communication

Seventh Topical Meeting on Integrated and Guided-Wave Optics, 1984
Virtually all fibre transmission systems up to the present have used simple intensity modulation of the transmit laser, most frequently in the form of binary ON/OFF modulation. At the receiver, incoming optical power has been converted directly to photocurrent in a photodetector.
openaire   +1 more source

Coherent optical communication

International Zurich Seminar on Digital Communications, Electronic Circuits and Systems for Communications., 2002
Activities associated with the development of coherent optical communication systems for application in future public broadband networks are reviewed. It is pointed out that the main future transmission medium, the optical single-mode fiber, provides an extremely high bandwidth which will have to be utilized when high-capacity-demanding digital ...
openaire   +1 more source

Modern coherent optical communications

2006 Conference on Lasers and Electro-Optics and 2006 Quantum Electronics and Laser Science Conference, 2006
Coherent systems can achieve better spectral efficiency, and better sensitivity than conventional on-off keying systems. This paper reviews recent research efforts and examines future possibilities in the field.
Leonid G. Kazovsky, Georgios Kalogerakis
openaire   +1 more source

Mixture-of-Gaussian clustering-based decision technique for a coherent optical communication system.

Applied Optics, 2019
A decision technique using mixture-of-Gaussian (MoG) clustering algorithms is proposed in the context of a coherent optical communication system. For an 80-Gb/s single-carrier polarization-division multiplexed 16 quadrature amplitude modulation (QAM ...
Xinyu Liu, Yongjun Wang, Xishuo Wang, Feng Tian, X. Xin, Qi Zhang, Qinghua Tian, Leijing Yang   +7 more
semanticscholar   +1 more source