We compare the transmission performance of 112Gb$/\mathrm{s}/ \lambda$ DSB and SSB signals through simulation. The transmission reach, receiver sensitivity, PAPR, central frequency and edge steepness of OBPF, ADC and ...
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ISBN:
(数字)9781943580927
ISBN:
(纸本)9781665400060
We compare the transmission performance of 112Gb$/\mathrm{s}/ \lambda$ DSB and SSB signals through simulation. The transmission reach, receiver sensitivity, PAPR, central frequency and edge steepness of OBPF, ADC and DAC resolution are investigated, respectively.
We propose a slicing and sliding algorithm to mitigate the distortion caused by DML chirp and fiber dispersion. 80Gb/s PAM-4 and SCM-16QAM signal C-band 10km transmission are experimentally demonstrated with >2dB R...
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ISBN:
(纸本)9781943580866
We propose a slicing and sliding algorithm to mitigate the distortion caused by DML chirp and fiber dispersion. 80Gb/s PAM-4 and SCM-16QAM signal C-band 10km transmission are experimentally demonstrated with >2dB ROP sensitivity improvement.
Facilitated by ultrafast dynamic modulations,spatiotemporal metasurfaces have been identified as a pivotal platform for manipulating electromagnetic waves and creating exotic physical phenomena,such as dispersion canc...
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Facilitated by ultrafast dynamic modulations,spatiotemporal metasurfaces have been identified as a pivotal platform for manipulating electromagnetic waves and creating exotic physical phenomena,such as dispersion cancellation,Lorentz reciprocity breakage,and Doppler *** by emerging information-oriented technologies,we hereby probe the information transition mechanisms induced by spatiotemporal variations and present a general model to characterize the information processing capabilities of the spatiotemporal *** theory and abstract number theory are adopted through this investigation,by which the group extension and independent controls of multiple harmonics are proposed and demonstrated as two major tools for information transitions from the spatiotemporal domain to the spectra-wavevector *** incorporating Shannon’s entropy theory into the proposed model,we further discover the corresponding information transition efficiencies and the upper bound of the channel capacity of the spatiotemporal *** results of harmonic information transitions show great potential in achieving high-capacity versatile information processing systems with spatiotemporal metasurfaces.
A customized algorithm is proposed to adaptively mitigate ISI and SSBI considering O/E front-end response simultaneously based on a MISO equalizer in SSB direct detection system, and validated in 30GBaud SSB-32QAM 80k...
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ISBN:
(纸本)9781957171005
A customized algorithm is proposed to adaptively mitigate ISI and SSBI considering O/E front-end response simultaneously based on a MISO equalizer in SSB direct detection system, and validated in 30GBaud SSB-32QAM 80km SSMF transmission experiment.
We experimentally demonstrate high-order QAM SCM signals 20km transmission with O-band DML and digital nonlinearity mitigation. 147Gb/s, 136Gb/s, and 108Gb/s line rates are achieved with 128/256/512-QAM formats below ...
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ISBN:
(数字)9781943580927
ISBN:
(纸本)9781665400060
We experimentally demonstrate high-order QAM SCM signals 20km transmission with O-band DML and digital nonlinearity mitigation. 147Gb/s, 136Gb/s, and 108Gb/s line rates are achieved with 128/256/512-QAM formats below the 20% SD-FEC threshold of 2×10 -2 , respectively.
We generate a 100Gbaud nonlinear frequency division multiplexing (NFDM) signal with all-optical synthesis of spectral slices for the first time. A record single-lane data rate of 666.7 Gb/s is achieved with PDM 16-QAM...
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We design a 2-bit high-pass delta-sigma modulator based on 4 th -order cascaded resonator feedback structure, and experimentally demonstrate IFoF transmission of 1.88GHz bandwidth 16384-QAM in 32Gb/s DML-DD link. 0.58...
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ISBN:
(纸本)9781665410953
We design a 2-bit high-pass delta-sigma modulator based on 4 th -order cascaded resonator feedback structure, and experimentally demonstrate IFoF transmission of 1.88GHz bandwidth 16384-QAM in 32Gb/s DML-DD link. 0.58% EVM is achieved after 20km SSMF transmission.
We propose a novel theoretical model including both the quantization noise and electrical noise together. A digital partial α-pre-emphasis is defined and validated both numerically and experimentally with 60Gbaud PAM...
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ISBN:
(纸本)9781943580866
We propose a novel theoretical model including both the quantization noise and electrical noise together. A digital partial α-pre-emphasis is defined and validated both numerically and experimentally with 60Gbaud PAM-4 signal in bandwidth-limited IM-DD system.
We report on the realization of a long-haul radio frequency (RF) transfer scheme by using multiple-access relay stations (MARSs). The proposed scheme with independent link noise compensation for each fiber sub-link ef...
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A laser with superb frequency stability plays an important role in fundamental physics research and advanced technologies. Frequency references are usually utilized to stabilize the laser, such as high-finesse cavitie...
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A laser with superb frequency stability plays an important role in fundamental physics research and advanced technologies. Frequency references are usually utilized to stabilize the laser, such as high-finesse cavities and atomic ensembles, of which thermal atomic beams are attractive because of their balanced performance between simplicity and stability. However, due to the transverse-velocity distribution in the thermal atomic beams, most atoms (generally >99%) are wasted when interacting with the laser. Here, we propose a laser referenced on a version of velocity-grating Ramsey-Bordé atom interferometry with greatly improved atom utilization and thus superior laser frequency stability. Compared with a conventional atomic interferometry applied to stabilize the laser, the proposed system in principle generates optical Ramsey fringes with the amplitude enhanced by 1000-fold or more. Such a configuration has promising applications in diverse areas, including precision measurements and quantum metrology.
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