A5112111299- Optical Network Technologies
- Advanced Photonic Communication Systems
- Advanced Optical Network Technologies
- Sensor Technology and Measurement Systems
- Analog and Mixed-Signal Circuit Design
- Semiconductor Lasers and Optical Devices
- Laser Design and Applications
- Traffic Prediction and Management Techniques
- Evaluation Methods in Various Fields
- Nonlinear Dynamics and Pattern Formation
- Chaos control and synchronization
- Advanced Sensor and Control Systems
- Urban Transport and Accessibility
- Advanced Fiber Optic Sensors
- Evaluation and Optimization Models
- Urban Design and Spatial Analysis
- Photonic Crystal and Fiber Optics
- Advanced Electrical Measurement Techniques
- Advanced Measurement and Detection Methods
- Electrical and Bioimpedance Tomography
- Neural Networks and Reservoir Computing
- Big Data and Business Intelligence
- Evacuation and Crowd Dynamics
China Mobile (China)
2021-2023
Southwest Jiaotong University
2023
Beijing Jiaotong University
2014-2018
We investigate numerically the synchronization of two multimode semiconductor ring lasers (SRLs) and demonstrate its potential in chaos-based communication. The extent SRL's chaos regime under external optical feedback is evaluated terms bifurcation diagram optimal strength range for reliable chaotic communication discussed as well. Under proper conditions, receiver SRL can be satisfactorily synchronized with transmitter due to injection-locking effect. message encoding decoding using shift...
This study aims to understand the street-crossing-facility choice behavior of elderly. The footbridges were classified into three types with different levels convenience. On other hand, safety crosswalk was assumed be highly related remaining time pedestrian green light. An adaptive SP survey designed collect data from individuals aged 60 years or above, and a multilevel logistic model developed analyze data. results indicated that convenience exert significant influence on facility...
In this paper, we present a high-precision bandgap reference(BGR) with high-order temperature compensation. The output voltage of the traditional first-order compensated BGR fluctuates relatively large change temperature, leading to inaccurate supply voltage. order improve accuracy voltage, circuit is designed based on CSMC 0.5m BCD process. uses Brokaw schematic which has small resistance. This simple and low static power consumption. end simulated verified by HSPICE. When 2.5V, 3.3V, 5V...
A semi-active wavelength division multiplexing (WDM) system based on pilot-tone relay detection is proposed and experimentally demonstrated for 5G centralized front-haul network, which composed of a passive WDM multiplexer at active antenna unit (AAU) side, an equipment distributed (DU) several optical modules in AAU DU, respectively. In this scheme, technology applied as transport layer to save fibers the architecture modulation capable flexible deployment with lite operation,...
A BP neural network model was employed to forecast the railway freight turnover. First, this paper analyses data of turnover in China from 1998 2012, build a three layers network, then by training and learning, well-trained can be used for simulating forecasting. Finally, predict Grey GM(1,1) respectively, compares errors two prediction model, results show that predicting has higher precision.
A novel WSS-free ROADM based on optical splitter/coupler and coherent detection is experimentally demonstrated, cost-effectively achieving similar functions performances as a WSS-based for metro applications. Colorless flex-grid are also demonstrated.
We report the first demonstration of cost-effective 400G-LR4 optical module based on O-band MWDM, achieving error-free transmission both 400GE and OTN rates over 10-km SSMF with an link budget 6.7 dB.
Semi-active WDM system based on multi-carrier pilot-tone with on-line management is proposed. Error-free real-time 24-hour filed-trial transmission of 12-channel 25-Gbps eCPRI signals combined 12-carrier 512-bps OAM over 10 km demonstrated.
For 5G front-haul network, a novel fiber is proposed and demonstrated in both laboratory field-deployed network. At least 2.5-dB link budget improvement achieved. The also suitable for Ethernet applications.
A novel management and control architecture abstract model of semi-active WDM system for 5G front-haul network are proposed. The functions device information acquisition, alarm monitoring fault location is demonstrated in field trial.
We report the first demonstration of cost-effective 400G-LR4 optical module based on O-band MWDM, achieving error-free transmission both 400GE and OTN rates over 10-km SSMF with an link budget 6.7 dB.
Front-haul is an important sub-system in 5G centralized, collaborative, cloud, and clean radio access network (C-RAN), which connects base stations distributed units. However, it still a challenge to achieve manageable cost-effective front-haul supporting 12-channel transmission over 10 km G.652.D fibre. Currently, novel approach based on so-called medium wavelength-division multiplexing (MWDM) the process of standardization various international organizations, such as ITU-T O-RAN. In this...
We investigate the robustness of a modified multi-trench fiber (MTF) design with two gaps numerically. The excellent suppression high-order modes is demonstrated over wide range gap misalignment and fundamental mode loss barely affected even 5 dB/m scattering in at two-gap MTF for first time. Therefore, required fabrication accuracy decreases.
Error-free 24-hour real-time transmission of self-tuning bidirectional 50GBASE-ER QSFP28 point-to-point system over 40-km G.652.D fiber is demonstrated. With the upstream and downstream wavelength in same spectral band, time-delay reduced to 0.25 ns.