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Performance Monitoring in Optical OFDM Systems
Optical Fiber Communication Conference and National Fiber Optic Engineers Conference, 2009We investigate performance monitoring within coherent optical OFDM systems. Estimates for CD and instantaneous DGD can be extracted from the result of channel estimation. The method can also provide information about OSNR and non-linear distortion.
Markus Mayrock, Herbert Haunstein
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Convolutional Neural Networks for Optical Performance Monitoring [PDF]
2019 IEEE Avionics and Vehicle Fiber-Optics and Photonics Conference (AVFOP), 2019 We demonstrate accurate OSNR estimation using convolutional neural networks based on the constellation image of a QAM signal. Simulation and experiment results demonstrate estimation error within 0.1 dB. Neural network training on simulated and successful testing on experimental data was also demonstrated.
Hyung Joon Cho +3 more
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Monitoring the performance of a semiconductor optical amplifier
Applied Physics Letters, 1990Measurements of optical gain and spontaneous emission of optical amplifiers show that the latter is a good measure of the former. A device structure is fabricated where a photodetector is integrated next to the amplifier. A fraction of the spontaneous emission from the amplifier impinges on the photodetector in this device producing a photocurrent. The
M. S. Lin +3 more
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Asynchronous Sampling for Optical Performance Monitoring
OFC/NFOEC 2007 - 2007 Conference on Optical Fiber Communication and the National Fiber Optic Engineers Conference, 2007We present two novel performance monitoring techniques for optically switched networks, based on asynchronous multi-tap sampling. We show that multiple simultaneous impairments can be separated and quantified by a single monitor.
Masuduzzaman Bakaul +4 more
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Optical performance monitoring in elastic optical OFDM networks
2015 International Conference on Photonics in Switching (PS), 2015Optical performance monitoring (OPM) is a crucial element in network management, in order to assure the quality of the optical signals at various intermediate and destination nodes. In future elastic optical network, the network operation is more adaptive and reconfigurable.
Tianwai Bo +3 more
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Novel techniques for optical performance monitoring in optical systems
SPIE Proceedings, 2006In this paper, different kinds of optical performance monitoring (OPM) techniques, in particular the optical signal-to-noise ratio (OSNR) monitoring and chromatic dispersion (CD) monitoring, are reviewed. Then recent trend of multiple-parameter simultaneous monitoring is examined.
Yuen-Ching Ku +2 more
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Optical performance monitoring for reconfigurable optical networks
2008 International Nano-Optoelectronics Workshop, 2008Optical performance monitoring might play a crucial role in enabling self-managed and reconfigurable high-performance optical networks. We will explore key motivating networking issues as well as potential monitoring techniques.
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Convolutional neural network-based optical performance monitoring for optical transport networks
IEEE\/OSA Journal of Optical Communications and Networking, 2018To address the open and diverse situation of future optical networks, it is necessary to find a methodology to accurately estimate the value of a target quantity in an optical performance monitor (OPM) depending on the high-level monitoring objectives ...
T. Tanimura +4 more
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Sensitivity issues of optical performance monitoring
IEEE Photonics Technology Letters, 2002Optical performance monitoring is becoming an important network building block as the system becomes increasingly sophisticated and the network span becomes larger and larger. The general requirement for the optical performance monitor from the noise perspective is derived from the fundamental considerations of detector noises.
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Review of optical performance monitoring techniques
2008 International Conference on Photonics in Switching, 2008The optical performance monitoring technique is of critical importance for the future development of dynamic WDM networks. In this paper, we review its current status and future challenges.
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