Search Results - "Vassilieva, Olga"

Minimizing the Number of Spans for Terrestrial Fiber-Optic Systems Using Quasi-Single-Mode Transmission by Jian Zhao, Inwoong Kim, Vassilieva, Olga, Ikeuchi, Tadashi, Wei Wang, He Wen, Guifang Li

“…We show that quasi-single-mode transmission in few-mode fibers (FMFs) can reduce the number of spans for a fixed transmission distance and, consequently, the…”
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Analysis of Nonlinearity Mitigation Using Spectral Inversion for Superchannel Transmission by Inwoong Kim, Vassilieva, Olga, Palacharla, Paparao, Sekiya, Motoyoshi, Ikeuchi, Tadashi

“…We propose a simplified analytical model for the estimation of nonlinearity mitigation using spectral inversion. We demonstrate excellent agreement between…”
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Enabling Technologies for Fiber Nonlinearity Mitigation in High Capacity Transmission Systems by Vassilieva, Olga, Kim, Inwoong, Ikeuchi, Tadashi

“…Fiber nonlinearity has become a major limiting transmission impairment factor. In this paper, we discuss various nonlinearity mitigation techniques in…”
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On the Fairness of the Performance Evaluation of Probabilistically Shaped QAM Signals by Vassilieva, Olga, Kim, Inwoong, Ikeuchi, Tadashi

“…In this work, we compare the performance of probabilistically shaped (PS) QAM systems with reference uniform QAM under two conditions: (1) for the same…”
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Method for reducing background artifacts from images in single-photon emission computed tomography with a uniformly redundant array coded aperture by Vassilieva, Olga I, Chaney, Roy C

“…Uniformly redundant array coded apertures have proven to be useful in the design of collimators for x-ray astronomy. They were initially expected to be equally…”
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Introducing Enumerative Sphere Shaping for Optical Communication Systems With Short Blocklengths by Amari, Abdelkerim, Goossens, Sebastiaan, Gultekin, Yunus Can, Vassilieva, Olga, Kim, Inwoong, Ikeuchi, Tadashi, Okonkwo, Chigo M., Willems, Frans M. J., Alvarado, Alex

“…Probabilistic shaping based on constant composition distribution matching (CCDM) has received considerable attention as a way to increase the capacity of fiber…”
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Introducing 4D Geometric Shell Shaping for Mitigating Nonlinear Interference Noise by Goossens, Sebastiaan, Gultekin, Yunus Can, Vassilieva, Olga, Kim, Inwoong, Palacharla, Paparao, Okonkwo, Chigo, Alvarado, Alex

“…Four dimensional geometric shell shaping (4D-GSS) is introduced as an approach for closing the nonlinearity-caused shaping gap. This format is designed at the…”
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Enhanced Spectral Inversion for Fiber Nonlinearity Mitigation by Kim, Inwoong, Vassilieva, Olga, Akasaka, Youichi, Palacharla, Paparao, Ikeuchi, Tadashi

“…We propose a novel technique of balancing dispersion among spans to achieve significantly improved nonlinearity compensation using spectral inversion, which…”
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Kurtosis-Limited Sphere Shaping for Nonlinear Interference Noise Reduction in Optical Channels by Gultekin, Yunus Can, Alvarado, Alex, Vassilieva, Olga, Kim, Inwoong, Palacharla, Paparao, Okonkwo, Chigo M., Willems, Frans M. J.

“…Nonlinear interference (NLI) generated during the propagation of an optical waveform through the fiber depends on the fourth order standardized moment of the…”
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Accurate prediction of quality of transmission based on a dynamically configurable optical impairment model by Bouda, Martin, Oda, Shoichiro, Vassilieva, Olga, Miyabe, Masatake, Yoshida, Setsuo, Katagiri, Toru, Aoki, Yasuhiko, Hoshida, Takeshi, Ikeuchi, Tadashi

“…We have proposed a dynamically configurable and fast optical impairment model for the abstraction of the optical physical layer, enabling new capabilities such…”
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Low-crosstalk few-mode EDFAs using retro-reflection for single-mode fiber trunk lines and networks by Wang, Ning, Kim, Inwoong, Vassilieva, Olga, Ikeuchi, Tadashi, Wen, He, Antonio-Lopez, J E, Alvarado-Zacarias, J C, Liu, Huiyuan, Fan, Shengli, Habib, Md Selim, Amezcua-Correa, Rodrigo, Li, Guifang

“…Few-mode EDFAs with low channel crosstalk can replace multiple parallel single-mode EDFAs in single-mode fiber trunk lines and networks. Here we proposed a…”
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SNR-availability-based optical network provisioning by Kim, Inwoong, Wang, Xi, Vassilieva, Olga, Palacharla, Paparao, Ikeuchi, Tadashi

“…We review recently proposed metrics, Q availability and signal-to-noise ratio (SNR) availability, based on statistical performance of optical signals, for…”
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Mitigation and Monitoring of the Impact of Extinction Ratio of IQ-Modulator on Nyquist M-QAM Signals by Inwoong Kim, Vassilieva, Olga, Palacharla, Paparao, Sekiya, Motoyoshi

“…We present the analysis of the distortion of optical constellations, induced by IQ-modulator with finite extinction ratio, for NRZ and Nyquist M-QAM signals…”
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Interplay between PDL and nonlinear effects in coherent polarization multiplexed systems by Vassilieva, Olga, Kim, Inwoong, Akasaka, Youichi, Bouda, Martin, Sekiya, Motoyoshi

“…We analyzed the mechanism of the interplay between PDL and fiber nonlinear effects in 112 Gb/s DP-QPSK systems and showed that PDL can generate large…”
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Enabling Technologies for Fiber Nonlinearity Mitigation in High Capacity Transmission Systems by Vassilieva, Olga

“…□ The author would like to thank colleagues at Fujitsu for collaboration, discussion and contribution: □ T. Ikeuchi, I. Kim, M. Sekiya, T. Hoshida, S. Oda, T…”
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Systematic analysis of intra-superchannel nonlinear crosstalk in flexible grid networks by Vassilieva, Olga, Yamauchi, Tomohiro, Oda, Shoichiro, Inwoong Kim, Hoshida, Takeshi, Aoki, Yasuhiko, Rasmussen, Jens C., Sekiya, Motoyoshi

“…Intra-superchannel nonlinear crosstalk affects center subcarriers of multi-carrier superchannels more than the edge subcarriers; its impact on center…”
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2nd Order Backward Raman Amplifier Design Using Autoencoder for C+L Band Transmission by Kim, Inwoong, Akasaka, Youichi, Vassilieva, Olga, Palacharla, Paparao

“…We propose machine learning based 2 nd order backward Raman amplifier design using autoencoder and a two-step training process. We demonstrate 0.18 dB RMS…”
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Impact of Non-ideal FEC and Code Rate on System Gain of Probabilistically Shaped QAM by Vassilieva, Olga, Kim, Inwoong, Palacharla, Paparao

“…We analyzed system gain provided by PS-DP-MQAM over DP-16QAM in practical systems, where fiber nonlinearity and non-ideal FEC performance are taken into…”
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Symbol-Level Enumerative Sphere Shaping for Optical Communication Systems by Kim, Inwoong, Vassilieva, Olga, Palacharla, Paparao

“…We propose a novel symbol-level ESS that enables the constellation shaping of truncated non-square MQAM signals. Its application to TPS-32QAM shows improved…”
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Probabilistic vs. Geometric Constellation Shaping: What are the keys to ultimate optical reach and capacity? by Vassilieva, Olga, Kim, Inwoong, Palacharla, Paparao

“…Constellation shaping for both linear and nonlinear channel is the key for ultimate reach and capacity. Symbol rate and information rate optimization can…”
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