Proceedings ArticleDOI
1-Tb/s per channel coherent optical OFDM transmission with subwavelength bandwidth access
Yiran Ma,Qi Yang,Yan Tang,Simin Chen,William Shieh +4 more
- pp 1-3
TLDR
In this article, a 1.1-Tb/s per channel coherent optical OFDM transmission over 600-km SSMF fiber is demonstrated assisted with a recirculating frequency shifter.Abstract:
1-Tb/s per channel coherent optical OFDM transmission over 600-km SSMF fiber is demonstrated assisted with a recirculating frequency shifter. Record spectral efficiency and transmission reach is achieved at 1-Tb/s channel rate without Raman amplification.read more
Citations
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Journal ArticleDOI
On the Performance of Nyquist-WDM Terabit Superchannels Based on PM-BPSK, PM-QPSK, PM-8QAM or PM-16QAM Subcarriers
TL;DR: In this article, the performance of Nyquist-WDM Terabit superchannels implemented using polarization-multiplexed phase shift-keying based on 2 (PM-BPSK) and 4 (PM)-QPSK signal points was investigated through simulations.
Journal ArticleDOI
Approaching the Non-Linear Shannon Limit
TL;DR: In this article, the authors review the recent progress of information theory in optical communications and describe the current experimental results and associated advances in various individual technologies which increase the information capacity, and confirm the widely held belief that the reported capacities are approaching the fundamental limits imposed by signal-to-noise ratio and the distributed nonlinearity of conventional optical fibres, resulting in the reduction in the growth rate of communication capacity.
Journal ArticleDOI
Comb-based radiofrequency photonic filters with rapid tunability and high selectivity
V. R. Supradeepa,V. R. Supradeepa,Christopher M. Long,Christopher M. Long,Rui Wu,Fahmida Ferdous,Ehsan Hamidi,Ehsan Hamidi,Daniel E. Leaird,Andrew M. Weiner +9 more
TL;DR: Using electro-optically generated frequency combs, the authors demonstrate radiofrequency photonic filters that can potentially provide simultaneous high stopband attenuation, fast tunability and bandwidth reconfiguration.
Journal IssueDOI
Scaling optical communications for the next decade and beyond
TL;DR: In this article, the authors examine the technical challenges inherent in scaling network capacity to accommodate traffic growth in the coming decades, and propose a solution to solve the problem of capacity scaling for long-distance optical communications.
Journal ArticleDOI
1-Tb/s single-channel coherent optical OFDM transmission over 600-km SSMF fiber with subwavelength bandwidth access.
TL;DR: A 1-Tb/s single-channel coherent optical OFDM signal consisting of continuous 4,104 spectrally-overlapped subcarriers is generated using a novel device of recirculating frequency shifter using a single laser with superior flatness and tone-to-noise ratio (TNR).
References
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Journal ArticleDOI
Real-time measurements of a 40 Gb/s coherent system
TL;DR: Continuous real-time measurements are shown from a coherent 40 Gb/s transmission system that uses Dual-Polarization Quadrature Phase Shift Keying (DP-QPSK) modulation, using digital compensation for dispersion and polarization effects.
Journal ArticleDOI
Electronic compensation of chromatic dispersion using a digital coherent receiver.
TL;DR: Results of a 42.8Gbit/s nonlinear transmission experiment, using polarization multiplexed QPSK data at 10.7GBaud, with 4 bits per symbol is presented, which allows the digital coherent receiver to be compensated digitally after transmission over 6400km of standard single mode fiber.
Journal ArticleDOI
Intra-symbol frequency-domain averaging based channel estimation for coherent optical OFDM.
Xiang Liu,Fred Buchali +1 more
TL;DR: An efficient channel estimation method for coherent optical OFDM (CO-OFDM) based on intra-symbol frequency-domain averaging (ISFA) and the subsequent channel compensation are found to be highly robust against transmission impairments in typical optical transport systems.
Journal ArticleDOI
Single channel 1.28 Tbit/s and 2.56 Tbit/s DQPSK transmission
H.G. Weber,S. Ferber,M. Kroh,Carsten Schmidt-Langhorst,Reinhold Ludwig,V. Marembert,C. Boerner,Fumio Futami,Shigeki Watanabe,Colja Schubert +9 more
TL;DR: By combining the techniques of optical TDM with polarisation multiplexing and DQPSK modulation format, 240 km transmission of 1.28 Tbit/s and 160 km transmission was performed in a single wavelength channel as mentioned in this paper.
Journal ArticleDOI
Electrically tunable delay line using an optical single-side-band modulator
TL;DR: In this article, the authors proposed a tunable delay line using an optical single-side-band modulator, a fiber Bragg grating and an optical fiber loop, where the number of times light circulates in the loop can be controlled by the electric signal fed to the modulator.