Results 261 to 270 of about 10,164 (270)

Joint Modulation Classification and OSNR Estimation Enabled by Support Vector Machine

IEEE Photonics Technology Letters, 2018
By adopting the cumulative distribution function of the received signal’s amplitude as feature, a support vector machine-based algorithm is proposed to jointly classify the modulation format and estimate the optical signal-to-noise ratio (OSNR) in ...
Xiang Lin, O. Dobre, T. Ngatched, Yahia A. Eldemerdash, Cheng Li   +4 more
semanticscholar   +1 more source

Monitoring of OSNR by using a Mach–Zehnder interferometer

Microwave and Optical Technology Letters, 2001
AbstractWe introduce a novel technique to monitor the optical signal‐to‐noise ratio (OSNR) using a Mach–Zehnder interferometer. The error of the novel method is less than 0.5 dB when the OSNR is between 10 and 40 dB in the best working case. In practice, the dynamic range reduces to 10–30 dB because of the influence of polarization, crosstalk, and ...
Zhenning Tao, Zhangyuan Chen, Libin Fu, Deming Wu, Anshi Xu   +4 more
openaire   +1 more source

In-Band OSNR Monitoring Using Spectral Analysis After Frequency Down-Conversion

IEEE Photonics Technology Letters, 2007
A novel method for simultaneous optical signal-to-noise ratio and chromatic dispersion monitoring in wavelength-division multiplexed 40-Gb/s systems is proposed and demonstrated. This technique has a fast response time of
Baker-Meflah, L, Savory, S, Thomsen, B, Mitchell, J, Bayvel, P   +4 more
openaire   +2 more sources

An Improved OSNR Monitoring Technique based on Polarization-Nulling Method

Optical Fiber Communication Conference and International Conference on Quantum Information, 2001
We report on the improved OSNR monitoring technique for WDM networks using the polarization-nulling method. Unlike the previous techniques based on the polarization, the proposed technique was not sensitive to PMD and nonlinear birefringence.
J.H. Lee, Y.C. Chung
openaire   +1 more source

Joint OSNR monitoring and modulation format identification on signal amplitude histograms using convolutional neural network

, 2021
Hongjing Lv, Xian Zhou, Jiahao Huo, Jinhui Yuan   +3 more
semanticscholar   +1 more source

Modulation Format Recognition and OSNR Estimation Using CNN-Based Deep Learning

IEEE Photonics Technology Letters, 2017
Danshi Wang, Min Zhang, Ze Li, Jin Li, Meixia Fu, Yue Cui, Xue Chen   +6 more
semanticscholar   +1 more source

On-chip OSNR monitoring system based on power-balanced Mach-Zehnder interferometers

, 2021
Ye Tian, Zhuili Huang, J. Qiu, Xiaowei Zhang, Jian Wu   +4 more
semanticscholar   +1 more source

Monitorização de OSNR e CD baseada em SOAs

2011
O presente trabalho tem como objectivo estudar técnicas de monitoria para a razão sinal/ruído e dispersão cromática. Neste estudo consideraram-se duas configurações na monitorização do sinal óptico: amplificador óptico de semicondutor com e sem bomba auxiliar, com o objectivo de avaliar os efeitos self and cross-phase modulation neste dispositivo. Para
openaire   +1 more source

In-band OSNR estimation for Nyquist WDM superchannels

2014 The European Conference on Optical Communication (ECOC), 2014
M. V. Ionescu, M. Sato, B. C. Thomsen
openaire   +1 more source

The osnR gene of Corynebacterium glutamicum plays a negative regulatory role in oxidative stress responses

Journal of Industrial Microbiology & Biotechnology, 2019
Haeri Jeong, Younhee Kim, Heung-Shick Lee   +2 more
semanticscholar   +1 more source