652 Hits in 6.4 sec

Ultra-Long-Haul WDM Transmission with High Spectral Efficiency

Yi CAI, Jin-Xing CAI, Carl R. DAVIDSON, Dmitri G. FOURSA, Alan J. LUCERO, Oleg V. SINKIN, Yu SUN, Alexei N. PILIPETSKII, Georg MOHS, Neal S. BERGANO
2011 IEICE transactions on communications  
We review our recent work on ultra-long-haul wavelength division multiplexed (WDM) transmission with high spectral efficiency (SE) employing tight pre-filtering and multi-symbol detection.  ...  We also investigate the merits of utilizing the pre-filtering induced symbol correlation with multi-symbol detection to achieve high SE transmission.  ...  Long-Haul WDM Transmission with High Spectral Efficiency Discussion The spectral efficiencies achieved in our transmission experiments are plotted in Fig. 11 for comparison with several memoryless  ... 
doi:10.1587/transcom.e94.b.392 fatcat:y6zbfjiusbamlgcaklkyrhrwya

Nyquist-WDM PDM-QPSK transmission over SMF-28 fibre using URFL amplification

P. Rosa, M. S. Erkilinc, R. Maher, M. Paskov, S. Kilmurray, M. Tan, P. Harper, I. D. Philips, A. D. Ellis, J-D. Ania-Castanon, B. C. Thomsen, S. J. Savory (+2 others)
2014 2014 16th International Conference on Transparent Optical Networks (ICTON)  
Nyquist-WDM PDM-QPSK transmission over standard SMF-28 fibre with novel distributed URFL amplification is reported for the first time.  ...  Transmission over 6157 km in a recirculating loop, and 320 km in an unrepeatered link without a ROPA were demonstrated.  ...  To our best knowledge, this is the first time that the high spectral efficiency of N-WDM has been combined with distributed 2 nd order URFL based amplification.  ... 
doi:10.1109/icton.2014.6876441 fatcat:7lwn2jqvenbszn5mlmwskfcg2a

Nonlinearity mitigation of PDM-16QAM signals using multiple CSI-OPCs in ultra-long-haul transmission without excess penalty

Takeshi Umeki, Takayuki Kobayashi, Akihide Sano, Takuya Ikuta, Masashi Abe, Takushi Kazama, Koji Enbutsu, Ryoichi Kasahara, Yutaka Miyamoto
2020 IEICE transactions on communications  
To examine the nonlinearity mitigation in a long-haul transmission using a large number of OPCs, we installed a CSI-OPC device in the middle of a pure silica core fiber-based recirculating loop transmission  ...  efficient periodically poled LiNbO 3 waveguide technologies.  ...  Acknowledgments Part of this research uses the results of "R&D on Optical Signal Transmission and Amplification with Frequency/Phase Precisely Controlled Carrier" commissioned by the National Institute  ... 
doi:10.1587/transcom.2019obp0001 fatcat:6goji4vm4rcyblchcwgjklzdem

Review of SDM/WDM technology and its application in data transmission

J. R. Warnes Lora, L. J. Quintero-Rodríguez, B. Tshibangu-Mbuebue, A. García-Juárez, I. E. Zaldívar-Huerta
2021 Suplemento de la Revista Mexicana de Física  
A summary of the most recent works on innovation in the efficiency of SDM as well as its application in data transmission is described.  ...  Combined with other optical technologies has significantly increased the capacity of information that is sent through an optical fiber.  ...  Another proposed technique for WDM/SDM transmission with ultra-high aggregated spectral efficiency was demonstrated in Ref. [21] .  ... 
doi:10.31349/suplrevmexfis.2.1.91 fatcat:65fr5cvribe5liyegewxduoqqu

Long-haul Coherent Optical OFDM Point-to-Point Transmission using Optical Phase Conjugation

Thosaphon Jaemkarnjanaloha, Rachata Maneekut, Pasu Kaewplung
2016 Proceedings of the 13th International Joint Conference on e-Business and Telecommunications  
Long-haul Coherent Optical OFDM Point-to-Point Transmission using Optical Phase Conjugation.  ...  The system is simulated with 10-WDM superchannel at 50 GHz channel spacing.  ...  that enables superchannel transmission achieving an ultra-high spectral efficiency (Wei-Ren et al., 2011) .  ... 
doi:10.5220/0005963700430047 dblp:conf/icete/Jaemkarnjanaloha16 fatcat:27yzsas5hfeolj2k6bpsrnbssy

Evolution of Fiber-Optic Transmission and Networking Towards the 5G Era

Xiang Liu
2019 iScience  
The progresses in the field of fiber-optic transmission and networking implicitly represent the works of many researchers and engineers around the world.  ...  I also would like to acknowledge the valuable discussion with many Huawei colleagues working in both optical and wireless departments.  ...  The spectral efficiency (SE) of the WDM system was thus typically 2 b/s/Hz.  ... 
doi:10.1016/j.isci.2019.11.026 pmid:31838439 pmcid:PMC6920305 fatcat:esbla46hmzeytl3bb2hqqnhqzy

High-capacity dense space division multiplexing transmission

Takayuki Mizuno, Yutaka Miyamoto
2017 Optical fiber technology (Print)  
In past years, SDM achieved high capacity transmission through increased spatial multiplicity, and long-haul transmission through improved transmission performance.  ...  Keywords: Optical fiber communications Dense space division multiplexing (DSDM) Multicore fiber (MCF) Multimode fiber (MMF) High-capacity transmission Long-haul transmission a b s t r a c t In this paper  ...  On the other hand, it has the advantage of high spectral efficiency values comparable to that of a conventional SMF, and thus has successfully demonstrated high-capacity and long-haul SDM-WDM transmissions  ... 
doi:10.1016/j.yofte.2016.09.015 fatcat:xcoatnke55hhrprl2o53lhrd24

448-Gb/s Reduced-Guard-Interval CO-OFDM Transmission Over 2000 km of Ultra-Large-Area Fiber and Five 80-GHz-Grid ROADMs

Xiang Liu, S. Chandrasekhar, Benyuan Zhu, P. J. Winzer, Alan H. Gnauck, David W. Peckham
2011 Journal of Lightwave Technology  
We propose a novel coherent optical orthogonal frequency-division multiplexing (CO-OFDM) scheme with reduced guard interval (RGI) for high-speed high-spectral-efficiency long-haul optical transmission.  ...  Wavelength-division multiplexed transmission of three 80-GHz spaced 448-Gb/s RGI-CO-OFDM channels is also demonstrated, achieving a net system spectral efficiency of 5.2 b/s/Hz and a transmission distance  ...  For optical backbone transport systems, it is desirable to achieve high SE at high per-channel data rate while maintaining long-haul transmission capability.  ... 
doi:10.1109/jlt.2010.2084988 fatcat:2ntfrlktfrbvlkr7enmw42hjwi

On the Comparison of Single-Carrier vs. Digital Multi-Carrier Signaling for Long-Haul Transmission of Probabilistically Shaped Constellation Formats [article]

Kaoutar Benyahya, Amirhossein Ghazisaeidi, Vahid Aref, Mathieu Chagnon, Aymeric Arnould, Stenio Ranzini, Haik Mardoyan, Fred Buchali, Jeremie Renaudier
2021 arXiv   pre-print
Experimental transmission of PCS16QAM is assessed at 120 GBd over an ultra-long-haul distance.  ...  We report on theoretical and experimental investigations of the nonlinear tolerance of single carrier and digital multicarrier approaches with probabilistically shaped constellations.  ...  [5] and electronically enhanced phase noise (EEPN) [6, 7] for signals transmitted over ultra-long-haul distances.  ... 
arXiv:2109.10553v1 fatcat:df6sz47xs5bx5npwei5zl5tsoq

Limit of Achievable Information Rates in EDFA and Raman Amplified Transmission Systems Using Nonlinearity Compensation

Tianhua Xu, Nikita A. Shevchenko, Zhe Li, Tiegen Liu, Polina Bayvel
2019 2019 21st International Conference on Transparent Optical Networks (ICTON)  
In this work, we will study the impact and compensation of Kerr effects to analyse the performance of long-haul optical fibre communication systems using EDFAs and Raman amplifiers.  ...  Achievable information rates of such ultra-wideband optical transmission systems will be discussed considering nonlinearity compensation and probabilistic shaping techniques.  ...  This implies that the order of 256QAM is sufficient in these long-haul transmission scenarios. RESULTS AND ANALYSIS Figure 2.  ... 
doi:10.1109/icton.2019.8840194 fatcat:na4dnhxstnhmdeqkwjzkqwnioi

A Snapshot of Optical Communications

2010 Optics and photonics news (Print)  
Traditional services and providers are facing competition with nontraditional providers and technologies-for example, voice service vs. Skype.  ...  Fiber Conference/National Fiber Optic Engineers Conference (OFC/NFOEC) describes current trends, including the increasing role of wireless technologies, the continued integration of optical networking with  ...  The mega data centers require high capacity at all length scales, from long-haul to computer interconnects.  ... 
doi:10.1364/opn.21.1.000024 fatcat:idlph5rc7jhktf37dxdhhuad5a

Demonstration of digital phase-sensitive boosting to extend signal reach for long-haul WDM systems using optical phase-conjugated copy

Yue Tian, Yue-Kai Huang, Shaoliang Zhang, Paul R. Prucnal, Ting Wang
2013 Optics Express  
We demonstrate a hybrid optical/digital phase-sensitive boosting (PSB) technique for long-haul wavelength division multiplexing (WDM) transmission systems.  ...  2.4 dB over conventional single-channel transmission after 4,800 km of dispersion-managed fiber (DMF) link at the expense of 50% reduction in spectral efficiency and extending the system reach by 60%  ...  Odd channels are turned off with only the signal and idler channels remaining.  ... 
doi:10.1364/oe.21.005099 pmid:23482044 fatcat:2jxdhsm44jd7va2ojzeadjfi6e

Integration of IR-UWB Services into Single- and Multi-Channel Optical Coherent OFDM Network

Jaffar Emad Kadum, Raad Sami Fyath
Simulation results are presented for the transmission of a 625Mb/s UWB signal with either 50Gb/s single-channel or three-channel OFDM system.  ...  Both Gaussian monocycle and 5th-order derivative Gaussian pulses are used to implement the UWB system with two modulation formats, namely ON-OFF keying (OOK) and biphase modulation (BPM).  ...  The quest for higher spectral efficiency over long-haul fiber transmission has been studied intensively due to the exponential growth of global communications traffic [9] .  ... 
doi:10.24297/ijct.v14i2.2056 fatcat:7z4wfasjyjea5btkihzqmaiafy

Performance evaluation of 6.4 Tbps dual polarization quadrature phase shift keying Nyquist-WDM superchannel FSO transmission link: Impact of different weather conditions

Mehtab Singh, Jyoteesh Malhotra, M.S. Mani Rajan, Vigneswaran Dhasarathan, Moustafa H. Aly
2020 Alexandria Engineering Journal  
rate of 6.4 Tbps with spectral efficiency of 3.33 bits/s/Hz.  ...  This work reports the development of an ultra-high capacity Nyquist-wavelength division multiplexing (WDM) superchannel based free space optics (FSO) transmission link.  ...  The proposed work can be used for the development of ultrahigh spectral efficient long-haul FSO link for development of future 5G links.  ... 
doi:10.1016/j.aej.2020.03.031 fatcat:huo364rbgzhc5nyintldxfirke

10 $\times$ 224-Gb/s POLMUX-16QAM Transmission Over 656 km of Large-${\rm A}_{\rm eff}$ PSCF With a Spectral Efficiency of 5.6 b/s/Hz

V. A. J. M. Sleiffer, M. S. Alfiad, D. van den Borne, M. Kuschnerov, V. Veljanovski, M. Hirano, Y. Yamamoto, T. Sasaki, S. L. Jansen, T. Wuth, H. de Waardt
2011 IEEE Photonics Technology Letters  
Waardt, de, H. (2011). 10x224-Gb/s POLMUX-16QAM transmission over 656 km of large-Aeff PSCF with a special efficiency of 5.6 b/s/Hz.  ...  over long-haul distances.  ...  Using largepure-silica-core fibers they show a 656-km transmission distance with a spectral efficiency of 5.6 b/s/Hz.  ... 
doi:10.1109/lpt.2011.2162722 fatcat:gn2cvuemvbalrdsbezzxdz6h7q
« Previous Showing results 1 — 15 out of 652 results