Loading [MathJax]/extensions/MathMenu.js
Chao Yang - IEEE Xplore Author Profile

Showing 1-25 of 36 results

Filter Results

Show

Results

3.078Tb/s (162-Gb/s×19) PAM-8 signal has been successfully transmitted over 1-km 19-core fiber without CD compensation at C band. The experimental results indicate that the Liquid Time-Constant Networks can effectively alleviate the nonlinear effects in the system.Show More
The Fourier transform between the time and frequency signals of light enables highly efficient band usage in optical communications. Analogously, the Fourier transform between the wavefield and wavevector distributions in the optical spatial diffraction is useful to understand the bandwidth considered in the diffraction simulations. In this work, we thoroughly investigate the numerical techniques ...Show More
Metro transmissions requiring high capacity with low complexity are becoming more appealing. Aiming to cope with the increasing traffic of metro transmissions, high-order quadrature amplitude modulation (QAM) formats requiring high optical signal-to-noise ratio (OSNR) are candidates owing to the high spectral efficiency. Although the distribution matcher (DM) based probabilistic shaping (PS) techn...Show More
4.8-Tb/s PS-PAM-8 bidirectional transmission is experimentally demonstrated over 10km 24-core fiber with SOA using only linear equalization at O-band. The experimental results indicate that the MCFs are well-suited for optical short-reach systems employing IM/DD.Show More
In this paper, a polar coded truncated probabilistic shaped 64-QAM (PTPS-64QAM) scheme is proposed and investigated over the G.654E fiber. Results show that about 2000-km transmission could be achieved aided by the novel proposed scheme.Show More
We experimentally demonstrate a 3.61 Pbit/s generalized mutual information (GMI) estimated throughput by space division multiplexing (SDM) and wavelength division multiplexing (WDM) combined transmission over 19-core single-mode fiber. Covering 17 THz bandwidth with a 25-GHz grid in S, C, and L band, 680 wavelength channels are used to deliver 24.5 GBaud probabilistically constellation-shaped (PCS...Show More
As the broadband applications continue rising, the solutions of high-speed passive optical network (PON) with large power budget are highly desired. Direct detection scheme combined with digital signal procession (DSP) has been considered as a promising candidate due to its low cost, low power consumption and simple architecture. In this paper, we experimentally demonstrate 200 Gb/s/λ and 240 Gb/s...Show More
A real-time 6.4-Tb/s (128-Gb/s×50) DP-QPSK signal transmission is experimentally demonstrated over 1.5-m free-space without optical filter. The experimental results indicate that optical wireless communication (OWC) can realize ultra-high-capacity transmission at low transmitted power with coherent reception.Show More
We demonstrate a 155 Tbit/s wideband transmission in 15.5THz of S, C and L bands over 50 km standard single mode fiber. With semiconductor optical amplifier assistance in S-band receiver, S band can achieve the capacity similar to common C/L band.Show More
In this paper, the performance of probabilistic shaped 16-ary quadrature amplitude modulation (PS-16QAM) with different entropies is investigated using the optimal probability-aided maximum likelihood sequence detector (PMLSD), which could effectively alleviate some adverse impacts of PS technology on the decision module. Results show that the improvement introduced by PMLSD is affected by signal ...Show More
We experimentally demonstrate 200/240 Gb/s/λ PAM-4 PON downstream transmission based on high bandwidth thin film lithium niobate modulator and direct detection in O-band. By using SOA and Volterra equalizer at the receiver side, over 29/28 dB power budget is achieved after 20 km SSMF.Show More
In this letter, we apply high-bandwidth silicon-based integrated coherent Transmit & Receive Optical Sub-Assembly (IC-TROSA) in long-haul fiber transmission systems. G.654E fiber and Raman amplifiers are employed in the fiber link to reduce the transmission loss and the nonlinear interference. In the experimental demonstration, the silicon-based IC-TROSA can provide similar performance as commerci...Show More
Multichannel 10-Kb/s optical labelling signal added on the 100-Gbit/s DP-QPSK signals is experimentally demonstrated after 600-km SSMF transmission. By down sampling and low pass filtering, we successfully recovered the multichannel labels using only one photodetector.Show More
Kramers-Kronig (KK) receiver shows strong feasibility since the phase can be extracted from the detected intensity through the Hilbert transform (HT). To reduce the complexity and make the HT more suitable for the practical KK system, the HT can be approximated as the finite impulse response (FIR) filter, i.e., the HT-FIR filter. However, the finite Fourier series expansion of the HT-FIR filter su...Show More
We experimentally demonstrate a real-time optical label system for coherent optical WDM networks. The experimental result verifies that 10×100G DP-QPSK signal with 24-bits label data per wavelength can be transmitted over 480-km SSMF.Show More
We have experimentally demonstrated 10×400-Gb/s PS-16QAM transmission over 4300-km LEAF. Digital pilot and FIR filter embedded with DD-LMS are applied to facilitate the carrier recovery of PS-QAM signal and overcome the fast phase fluctuations.Show More
In this paper, we demonstrate a data editing technology for subcarrier index modulation optical label system. Based on the data processing and signal feedback loop, the label data of each wavelength can be edited independently.Show More
We use a high-bandwidth silicon-based integrated coherent transceiver in the long-haul fiber transmission systems. 16-Tb/s ($80\times 200-\text{Gb}/\mathrm{s}$) Nyquist DP-QPSK transmission over 10,000-km G.654E fiber with Raman amplification is experimentally demonstrated.Show More
We propose and experimentally demonstrate an optical labelling scheme in coherent optical WDM network to simultaneously recognize labels in each wavelength and monitor the OSNR using only one photodetector based on subcarrier index modulation technology.Show More
We propose a pilot-assisted direct detection scheme with digital carrier regeneration in DCI and metro networks to realize 112-Gb/s CFP-LR4-100G optical module, 56-Gb/s duobinary and PAM-4 signals over 160-km, 640-km and 720-km SSMF transmission, respectively.Show More