Results 111 to 120 of about 5,993 (258)

A Novel in-Band OSNR Measurement Method Based on Normalized Autocorrelation Function

open access: yesIEEE Photonics Journal, 2018
We propose and experimentally demonstrate a novel in-band optical signal-tonoise ratio (OSNR) measurement method based on normalized autocorrelation function. Experimental results indicate that OSNR of four-channel 32-Gbaud pulse-duration modulation-QPSK
Zhuili Huang   +7 more
doaj   +1 more source

All-optical reconfigurable non-inverted logic gates with a single semiconductor optical amplifier

open access: yesAIP Advances, 2019
All-optical reconfigurable non-inverted logic gates with a single semiconductor optical amplifier (SOA) is proposed. Compared with the probe light of continuous light, the clock (Clk) pulse sequences light is regarded as the probe light so that the ...
Bingchen Han, Yi Liu
doaj   +1 more source

Modulation Scheme Identification Based on Artificial Neural Network Algorithms for Optical Communication System

open access: yesJournal of ICT Research and Applications, 2020
Higher-order modulation schemes in optical communication systems that suffer from several impairments can use artificial intelligence (AI) algorithms, among other possible techniques, to mitigate these issues.
Mustafa A. Jalil   +2 more
doaj   +1 more source

Comb-based WDM transmission at 10 Tbit/s using a DC-driven quantum-dash mode-locked laser diode

open access: yes, 2019
Chip-scale frequency comb generators have the potential to become key building blocks of compact wavelength-division multiplexing (WDM) transceivers in future metropolitan or campus-area networks.
Abderrahim Ramdane   +47 more
core   +2 more sources

Improved OSNR monitoring technique based on polarisation-nullingmethod

open access: yesElectronics Letters, 2001
An improved optical signal to noise ratio (OSNR) monitoring technique for wavelength division multiplexed networks based on a polarisation-nulling method is reported. Unlike the previous techniques based on polarisation, the proposed technique was not sensitive to polarisation-mode dispersion and nonlinear birefringence.
Lee, JH, Chung, YC Chung, Yun Chur
openaire   +2 more sources

Fabrication and Comprehensive Modeling of Ion-Exchanged Bragg Opitcal Add-Drop Multiplexers [PDF]

open access: yes, 2004
Optical add–drop multiplexers (OADMs) based on asymmetric Y branches and tilted gratings offer excellent-performance in wavelength-division multiplexed systems.
Castro, Jose M.   +3 more
core   +1 more source

An OSNR Monitoring Scheme based on Mean and Variance Value of Signal Amplitude

open access: yesGuangtongxin yanjiu
【Objective】Optical Signal-to-Noise Ratio (OSNR) is an important criterion for evaluating the performance of communication systems. For optical fiber communication systems, stable operation can only be ensured if the OSNR at the receiver end exceeds the ...
CHEN Fang   +6 more
doaj  

Simultaneous and Independent OSNR and Chromatic Dispersion Monitoring Using Empirical Moments of Asynchronously Sampled Signal Amplitudes

open access: yesIEEE Photonics Journal, 2012
We analytically investigate and derive equations for the empirical moments of asynchronously sampled signal amplitudes as functions of signal power, noise power, and accumulated chromatic dispersion (CD) of a transmission link.
Faisal Nadeem Khan   +5 more
doaj   +1 more source

A 40 Gbaud integratedsilicon coherent receiver [PDF]

open access: yes, 2016
C
Bauwelinck, Johan   +9 more
core   +1 more source

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