Results 111 to 120 of about 2,608 (229)

Binary PolSK to OOK Modulation Format Conversion in Single-Pump FOPA for Optical Access Networks

The interest of implementation of advanced modulation formats in metro and access networks has experienced a steady increase under the influence of exponentially increasing data amount from multimedia services like videoconferencing, high definition ...
Bobrovs, Vjačeslavs, Ozoliņš, Oskars, Olonkins, Sergejs, Ivanovs, Ģirts, Poriņš, Jurģis   +4 more
core  

Design of a Demodulation Algorithm for UWOC based on Improved Manchester Coding

Guangtongxin yanjiu
【Objective】To meet the requirements of the engineering of high-speed Underwater Wireless Optical Communication (UWOC) technology, and to address the issue of high Bit Error Rate (BER) in underwater channels when using modulation methods such as On/Off ...
ZHANG You, HU Fangren, ZHAO Xiaoyan, ZHOU Jun, WANG Qilong   +4 more
doaj  

Application of wavelets and artificial neural network for indoor optical wireless communication systems

This study investigates the use of error control code, discrete wavelet transform (DWT) and artificial neural network (ANN) to improve the link performance of an indoor optical wireless communication in a physical channel.
Rajbhandari, Sujan
core  

Comparison of selected digital modulation schemes (OOK, PPM and DPIM) for wireless optical communications

, 2006
In this article, three digital modulation schemes popular in optical wireless communication systems (OOK, PPM and DPIM) are compared based on bandwidth requirement, power efficiency, transmits-ion capacity and biterror probability.
Mahdiraji, G.A., Zahedi, E.
core  

Simultaneous RZ-OOK to NRZ-OOK and RZDPSK to NRZ-DPSK Format Conversion in a Silicon Microring Resonator

Simultaneous RZ-OOK to NRZ-OOK and RZ-DPSK to NRZDPSK modulation format conversion in a single silicon microring resonator with free spectral range equal to twice the signal bit rate is experimentally demonstrated for the first time at 41.6 Gb/s.
Ozoliņš, Oskars, Ou, Haiyan, Xiong, Meng, Huang, Bo, Ding, Yunhong, Zhang, Xinliang, An, Yi, Peucheret, Christophe   +7 more
core  

Free-space optical communications at 4 Gbit/s data rate with a terahertz laser. [PDF]

Commun Phys
Elumalai J, Salih M, Fice M, Brown A, Li L, Linfield EH, Valavanis A, Seeds AJ, Davies AG, Freeman JR.   +9 more
europepmc   +1 more source

Impact of Single-Mode Fiber Dispersion Coefficient on Signal Distortions for Different Data-Rates and Modulation Formats

In this paper we will reveal the impact of optical fibers chromatic dispersion (CD) coefficient on optical signal modulation format for certain bitrate.
Udaļcovs, Aleksejs, Garkavcenko, Anastasija   +1 more
core  

Spectral efficient and high data rate ring topology based UWOC system with carrier-free optical add-drop nodes. [PDF]

PLoS One
Armghan A, Chaoui S, Alsharari M, Aliqab K, Ghafoor S, Ijaz M, Mirza J.   +6 more
europepmc   +1 more source

Ultra-broadband near- to mid-infrared electro-optic modulator on thin-film lithium niobate. [PDF]

Nat Commun
Li Q, Yi Q, Sun A, Shang C, Dai Y, Xing S, Cui J, Zhu Y, Li J, Zheng J, Zhang J, Chi N, Pan A, Zeng C, Xia J, Zheng S, Shen L, Zhang M.   +17 more
europepmc   +1 more source

HARQ Performance Limits for Free-Space Optical Communication Systems. [PDF]

Entropy (Basel)
Taricco G.
europepmc   +1 more source