Results 11 to 20 of about 28,121 (162)

Joint, accurate and robust optical signal-to- noise ratio and modulation format monitoring scheme using a single Stokes-parameter-based artificial neural network.

Optics Express, 2021
A joint and robust optical signal-to-noise ratio (OSNR) and modulation format monitoring scheme using an artificial neural network (ANN) is proposed and demonstrated via both numerical simulations and experiments.
Qian Xiang, Yanfu Yang, Qun Zhang, Yong Yao   +3 more
semanticscholar   +1 more source

All‐Optical Parametric‐Assisted Oversampling and Decimation for Signal Denoising Amplification

Laser &Photonics Reviews, Volume 17, Issue 6, June 2023., 2023
In digital signal processing, decimation can be employed to mitigate noise content by linearly combining consecutive samples of an oversampled signal. This article introduces an optical counterpart of digital decimation in a process referred to as Parametric‐assisted Oversampling and Decimation (POD).
Manuel P. Fernandez, Saket Kaushal, Benjamin Crockett, Laureano A. Bulus‐Rossini, Pablo A. Costanzo‐Caso, José Azaña   +5 more
wiley   +1 more source

A MIMO‐Enabled Free Space Optical Link under Log‐Normal Fading/Gamma‐Gamma Channel: Exploring an Optimal Modulation Scheme

International Journal of Optics, Volume 2023, Issue 1, 2023., 2023
The technology of free‐space optical communication (FSOC) systems has some distinctive merits compared to other technologies. Its use is extremely beneficial to meet the exigencies of optical telecommunications and wireless networks (OTWNs). However, since the OTWNs transport a lot of data, the choice of a reliable modulation scheme is highly crucial ...
Haroun Errachid Adardour, Samir Kameche, Mehtab Singh, Haochong Huang   +3 more
wiley   +1 more source

Digital Signal Processing for High‐Speed THz Communications

Chinese Journal of Electronics, Volume 31, Issue 3, Page 534-546, May 2022., 2022
The use of advanced digital signal processing (DSP) technology in the high‐speed terahertz (THz) communication can effectively compensate the linear and nonlinear effects of the system and further improve the transmission performance of the system.
Jianjun YU, Yi WEI
wiley   +1 more source

All-Optical Non-Inverted Parity Generator and Checker Based on Semiconductor Optical Amplifiers

Applied Sciences, 2021
An all-optical non-inverted parity generator and checker based on semiconductor optical amplifiers (SOAs) are proposed with four-wave mixing (FWM) and cross-gain modulation (XGM) non-linear effects. A 2-bit parity generator and checker using by exclusive
Bingchen Han, Junyu Xu, Pengfei Chen, Rongrong Guo, Yuanqi Gu, Yu Ning, Yi Liu   +6 more
doaj   +1 more source

Performance‐Aware Green Algorithm for Clustering of Underwater Wireless Sensor Network Based on Optical Signal‐to‐Noise Ratio

Mathematical Problems in Engineering, Volume 2022, Issue 1, 2022., 2022
Underwater wireless sensor network (UWSN) has limited bandwidth, long propagation delays, and unrechargeable batteries, which forces the development of techniques minimizing the energy consumption of UWSNs. One solution is clustering that outperforms in terms of energy optimization and, in addition, can also provide scalability and data reliability ...
Pooja Ashok Shelar, Parikshit Narendra Mahalle, Gitanjali Rahul Shinde, Haribhau Rambhau Bhapkar, Minyechil Alehegn Tefera, Vijay Kumar   +5 more
wiley   +1 more source

Software‐Defined Networks for Optical Networks Using Flexible Orchestration: Advances, Challenges, and Opportunities

Journal of Computer Networks and Communications, Volume 2022, Issue 1, 2022., 2022
Optical networks offer a wide range of benefits to the telecommunication sector worldwide with their provision of higher bandwidth, which leads to faster data speed, longer transmission distance, and improved latency. Currently, the complexity associated with advancements in optical networks poses problems to network flexibility, reliability, and ...
Kenneth Nsafoa-Yeboah, Eric Tutu Tchao, Bright Yeboah-Akowuah, Benjamin Kommey, Andrew Selasi Agbemenu, Eliel Keelson, Mohammad Monirujjaman Khan, Gianluigi Ferrari   +7 more
wiley   +1 more source

Improving the Performance of Optical Phased Array by Reducing Relative Intensity Noise of Optically Injection-Locked Laser Array

Photonics, 2022
Relative intensity noise (RIN) is an important factor that determines the performance of optical phased arrays (OPA) that are configured using semiconductor lasers as light emission sources. This study proposes a method of improving the optical signal-to-
Anh-Hang Nguyen, Hyuk-Kee Sung
doaj   +1 more source

The Effectual Spectrum Defragmentation Algorithm with Holding Time Sensitivity in Elastic Optical Network (EON)

International Journal of Optics, Volume 2022, Issue 1, 2022., 2022
The elastic optical network (EON) fulfills the upcoming generation network requirements such as high‐definition videos, high bandwidth demand services, and ultra‐high‐definition televisions. The key issues in EON are routing spectrum assignment and spectrum fragmentation for spectrum allocation.
S. Selva Kumar, J. Kamalakannan, R. Seetha, N. Asha, Kiruba Thangam Raja, S. Sree Dharinya, M. Sucharitha, S. Kalaivani, A. Cartaxo   +8 more
wiley   +1 more source

Performance Analysis of Dual‐Beam Free Space Optical Communication Link under Dust and Rain Conditions

Wireless Communications and Mobile Computing, Volume 2022, Issue 1, 2022., 2022
Free space optical (FSO) communication has become an enduring and well‐established communication technology in the last few decades with several advantages of high data rate, enormous bandwidth, low power consumption, transportable technology without right of way, and inherently secure line of a sight communication system.
Sultan Mahmood Yasir, Naeem Abas, Shoaib Rauf, Muhammad Shoaib Saleem, Aun Haider, Ghanshyam Singh   +5 more
wiley   +1 more source