Prof. Weisheng Hu Profile

Prof. Weisheng Hu

Professor at Shanghai Jiao Tong Univ

SPIE Involvement:

Conference Program Committee | Symposium Committee | Conference Chair | Author

Publications (102)

PROCEEDINGS ARTICLE | January 10, 2018

Efficient dynamic coherence transfer relying on offset locking using optical phase-locked loop

Proc. SPIE. 10617, 2017 International Conference on Optical Instruments and Technology: Optoelectronic Devices and Optical Signal Processing

KEYWORDS: Tunable lasers, Coherence (optics), Modulation, Composites, Laser stabilization, Servomechanisms, Feedback control

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PROCEEDINGS ARTICLE | April 26, 2017

Field demonstration of real-time 100G-PON (Conference Presentation)

Proc. SPIE. 10129, Optical Metro Networks and Short-Haul Systems IX

KEYWORDS: Digital signal processing, Modulation, Dispersion, Passive optical networks, Receivers, Single mode fibers, Optical networks, Broadband telecommunications, Laser sintering, Amplitude modulation

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As the demand for broadband applications continues rising, low cost and high capacity PON system has attracted more attention to keep up with the increasing demand in the future access network. Recently, the IEEE 802.3 Ethernet Working Group has already sponsored the discussion of next generation Ethernet passive optical network (NG-EPON) to provide 25-Gb/s per wavelength. In order to upgrade current 10-Gb/s PON to realize the capacity of 100 Gb/s PON with 25 Gb/s per wavelength, a variety of experimental demonstrations have shown the feasibility of 25-Gb/s per wavelength using the modulation schemes of four-level pulse amplitude modulation (PAM-4), electrical duobinary (EDB), optical duobinary (ODB) or non-return-to-zero on-off-keying (NRZ-OOK) for high speed transmission. In order to achieve higher performance, these transmission schemes are always combined with the advanced digital signal processing (DSP) which increases the technical complexity and the cost as well. Most of the previous demonstration are based on the off-line processing, therefore requires more time for the practical deployment. In this paper, we demonstrate the first field trial a real-time 100Gb/s TWDM-PON system with 4×25-Gb/s downstream and 4×10-Gb/s upstream transmission using 10G-class directly-modulated lasers (DMLs) and APD/PIN receivers. A single delay-interferometer (DI) is used to achieve frequency equalization as well as chirp management to increase the high frequency components of the system response and combat the chromatic dispersion (CD) during the fiber transmission. Note that there is no DSP applied for the whole system. Electrical clock/data recovery (CDR) chips are integrated on the main board for data generation, recovery and real-time bit error rate (BER) measurement. We obtained a power budget of 33 dB with 0-40km of standard single mode fiber based on NRZ-OOK modulation format for the downstream. The system stability is also verified using deployed 40-km fiber infrastructure over 67-hour real-time measurement.

PROCEEDINGS ARTICLE | August 5, 2015

The laser phase measurement by phase-smooth unwrapping algorithm and its application in phase error compensation of OFMCW

Proc. SPIE. 9619, 2015 International Conference on Optical Instruments and Technology: Optoelectronic Devices and Optical Signal Processing

KEYWORDS: Signal to noise ratio, Laser sources, Continuous wave operation, Phase modulation, Modulation, Interferometers, Data acquisition, Optical resolution, Phase measurement, Laser optics

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PROCEEDINGS ARTICLE | August 5, 2015

Polarization diversity heterodyne receiver for high-sensitivity optical frequency modulated continuous wave system

Proc. SPIE. 9619, 2015 International Conference on Optical Instruments and Technology: Optoelectronic Devices and Optical Signal Processing

KEYWORDS: Signal to noise ratio, Beam splitters, Modulation, Polarization, Interferometers, Interference (communication), Receivers, Heterodyning, Spatial resolution, Signal detection

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PROCEEDINGS ARTICLE | August 5, 2015

Precise linearization of broadband frequency chirp for coherent optical frequency domain reflectometry

Proc. SPIE. 9619, 2015 International Conference on Optical Instruments and Technology: Optoelectronic Devices and Optical Signal Processing

KEYWORDS: Signal to noise ratio, Polarization, Sensors, Interference (communication), Semiconductor lasers, Reflectometry, Optoelectronics, Feedback loops, Spatial resolution, Signal detection

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PROCEEDINGS ARTICLE | August 5, 2015

Stable coherent dual comb generator with dual-heterodyne phase error transfer and heterodyne optical phase-locked loop

Proc. SPIE. 9619, 2015 International Conference on Optical Instruments and Technology: Optoelectronic Devices and Optical Signal Processing

KEYWORDS: Optical fibers, Oscillators, Spectroscopy, Interference (communication), Modulators, Frequency combs, Heterodyning, Microwave radiation, Rubidium, Single sideband modulation

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PROCEEDINGS ARTICLE | August 5, 2015

The distribution of highly stable millimeter-wave signals over different optical fiber links with accurate phase-correction

Proc. SPIE. 9619, 2015 International Conference on Optical Instruments and Technology: Optoelectronic Devices and Optical Signal Processing

KEYWORDS: Optical fibers, Optical amplifiers, Oscillators, Interference (communication), Frequency combs, Heterodyning, Signal processing, Microwave radiation, Signal detection, Rubidium

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SPIE Journal Paper | April 24, 2015

All-optical encryption/decryption for nonreturn-to-zero differential phase-shift keying signals using four-wave mixing in semiconductor optical amplifier

Yang, Xuelin , Zhou, Peng , Hu, Xiaonan , Hu, Weisheng

OE Vol. 54 Issue 04

KEYWORDS: Continuous wave operation, Logic, Phase shift keying, Four wave mixing, Semiconductor optical amplifiers, Optical fibers, Data conversion, Binary data, Signal processing, Eye

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SPIE Journal Paper | July 11, 2014

Compensation of phase error in optical frequency-domain reflectometry using delay-matched sampling

Zhou, Qian , Xie, Weilin , Xia, Zongyang , Shi, Hongxiao , Dong, Yi , Hu, Weisheng

OE Vol. 53 Issue 07

KEYWORDS: Spatial resolution, Reflectometry, Error analysis, Interferometers, Data acquisition, Phase measurement, Phase modulation, Fiber lasers, Mach-Zehnder interferometers, Distance measurement

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SPIE Journal Paper | May 13, 2014

Physical-layer energy-efficient receiving method based on selective sampling in orthogonal frequency division multiplexing access passive optical network

Li, Jun , He, Hao , Bi, Meihua , Hu, Weisheng

OE Vol. 53 Issue 05

KEYWORDS: Orthogonal frequency division multiplexing, Receivers, Digital signal processing, Passive optical networks, Switches, Head, Optical networks, Optical amplifiers, Optical engineering, Avalanche photodetectors

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SPIE Journal Paper | December 19, 2013

Photonic generation of linearly chirped millimeter wave based on comb-spacing tunable optical frequency comb

Xia, Zongyang , Xie, Weilin , Sun, Dongning , Shi, Hongxiao , Dong, Yi , Hu, Weisheng

OE Vol. 52 Issue 12

KEYWORDS: Signal generators, Phase modulation, Frequency combs, Extremely high frequency, Radio optics, Microwave radiation, Modulation, Linear filtering, Modulators, Continuous wave operation

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SPIE Journal Paper | September 10, 2013

Survivable wavelength-division multiplexing passive optical network system with centralized protection routing scheme and efficient wavelength utilization

Zhou, Zhao , Xiao, Shilin , Bi, Meihua , Qi, Tao , Li, Pingqing , Hu, Weisheng

OE Vol. 52 Issue 09

KEYWORDS: Optical fibers, Wavelength division multiplexing, Passive optical networks, WDM-PON, Nonuniformity corrections, Signal detection, Receivers, Switching, Radon, Optical amplifiers

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PROCEEDINGS ARTICLE | November 20, 2012

Photonic crystal one-way delay waveguide

Proc. SPIE. 8564, Nanophotonics and Micro/Nano Optics

KEYWORDS: Resonators, Waveguides, Dielectrics, Interfaces, Photonic crystals, Linear filtering, Gaussian pulse, Finite element methods, Waveguide modes, Molybdenum

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PROCEEDINGS ARTICLE | December 16, 2011

Bandwidth scheduler based on effective transfer rate of end-systems in ultra-high-speed networks

Proc. SPIE. 8310, Network Architectures, Management, and Applications IX

KEYWORDS: Human-machine interfaces, Switches, Optical circuits, Sun, Interfaces, Optical communications, Integrated optics, Optical networks, Local area networks, Network architectures

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PROCEEDINGS ARTICLE | December 15, 2011

A novel dynamic wavelength bandwidth allocation scheme over OFDMA PONs

Proc. SPIE. 8310, Network Architectures, Management, and Applications IX

KEYWORDS: Internet, Atrial fibrillation, Passive optical networks, Wavelength division multiplexing, Control systems, Computer simulations, Telecommunications, Signal processing, Orthogonal frequency division multiplexing, Tolerancing

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PROCEEDINGS ARTICLE | December 15, 2011

Cost-based scheduling algorithm for workflow-based application in optical grid

Proc. SPIE. 8310, Network Architectures, Management, and Applications IX

KEYWORDS: Mathematical modeling, Astronomy, Sun, Computer simulations, Telecommunications, Optical communications, Optical networks, Optical switching, Process modeling, Bioinformatics

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PROCEEDINGS ARTICLE | December 15, 2011

Optimizing electrical power consumption in SOA based optical packet switching nodes

Proc. SPIE. 8310, Network Architectures, Management, and Applications IX

KEYWORDS: Switches, Semiconductor optical amplifiers, Switching, Wavelength division multiplexing, Control systems, Optical communications, Optical networks, Thermoelectric materials, Network architectures, Packet switching

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PROCEEDINGS ARTICLE | December 15, 2011

Differentiated protection method in passive optical networks based on OPEX

Proc. SPIE. 8310, Network Architectures, Management, and Applications IX

KEYWORDS: Mathematical modeling, Sun, Reliability, Networks, Passive optical networks, Telecommunications, Mathematics, Optical networks, Transparent conductors, Network architectures

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PROCEEDINGS ARTICLE | December 15, 2011

Upstream multi-wavelength shared TDM-PON using RSOA based directly modulated tunable fiber ring laser

Proc. SPIE. 8310, Network Architectures, Management, and Applications IX

KEYWORDS: Laser sources, Optical filters, Tunable lasers, Modulation, Receivers, Single mode fibers, Fiber lasers, Semiconductor lasers, Wavelength tuning, Signal detection

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PROCEEDINGS ARTICLE | December 15, 2011

An enhanced DWBA algorithm in hybrid WDM/TDM EPON networks with heterogeneous propagation delays

Proc. SPIE. 8310, Network Architectures, Management, and Applications IX

KEYWORDS: MATLAB, Lithium, Radon, Sun, Computer simulations, Wave propagation, Optical communications, Algorithm development, Molybdenum, Light wave propagation

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PROCEEDINGS ARTICLE | December 14, 2011

Experimental evaluation of pilot arrangement for channel estimation in OFDM systems

Proc. SPIE. 8309, Optical Transmission Systems, Subsystems, and Technologies IX

KEYWORDS: Digital signal processing, Error analysis, Receivers, Data transmission, Telecommunications, Optical communications, Signal generators, Fiber optic communications, Orthogonal frequency division multiplexing, Channel projecting optics

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PROCEEDINGS ARTICLE | December 14, 2011

Chromatic dispersion compensation using two pilot tones in optical OFDM systems

Proc. SPIE. 8309, Optical Transmission Systems, Subsystems, and Technologies IX

KEYWORDS: Signal to noise ratio, Optical fibers, Modulation, Fiber optics, Dispersion, Phase shift keying, Telecommunications, Optical communications, Orthogonal frequency division multiplexing, Channel projecting optics

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PROCEEDINGS ARTICLE | December 5, 2011

High speed data encryption and decryption using stimulated Brillouin scattering effect in optical fiber

Proc. SPIE. 8198, 2011 International Conference on Optical Instruments and Technology: Optoelectronic Devices and Integration

KEYWORDS: Optical fibers, Eye, Modulation, Scattering, Signal attenuation, Interference (communication), Telecommunications, Signal processing, Optical communications, Computer security

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PROCEEDINGS ARTICLE | November 29, 2011

Linear birefringence and imperfect quarter wave plate effects on optic-fiber current sensor

Proc. SPIE. 8311, Optical Sensors and Biophotonics III

KEYWORDS: Optical fibers, Mirrors, Polarization, Birefringence, Sensors, Error analysis, Single mode fibers, Wave plates, Optical communications, Magnetic sensors

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PROCEEDINGS ARTICLE | November 28, 2011

Patterning effect mitigation using complementary data for NRZ wavelength conversion with a SOA-MZI

Proc. SPIE. 8308, Optoelectronic Materials and Devices VI

KEYWORDS: Semiconductor optical amplifiers, Optical lithography, Mach-Zehnder interferometers, Modulation, Wavelength division multiplexing, Data conversion, Data communications, Optical data conversion, Phase shifts

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PROCEEDINGS ARTICLE | November 28, 2011

All-optical edge detector for NRZ signal using a SOA-MZI

Proc. SPIE. 8308, Optoelectronic Materials and Devices VI

KEYWORDS: Edge detection, Semiconductor optical amplifiers, Mach-Zehnder interferometers, Phase modulation, Modulation, Sensors, Dispersion, Picosecond phenomena, Signal detection

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PROCEEDINGS ARTICLE | November 28, 2011

Highly efficient channel drop filter based on photonic crystal one-way waveguide

Proc. SPIE. 8308, Optoelectronic Materials and Devices VI

KEYWORDS: Channel waveguides, Waveguides, Dielectrics, Photonic crystals, Wave propagation, Telecommunications, Finite element methods, Waveguide modes, Molybdenum, Optical microcavities

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SPIE Journal Paper | September 1, 2011

Genetic algorithm optimization of tunable wavelength selection photonic switch using a microring resonator

Tang, Jianxiong , Jin, Yaohui , Chang, Zhijuan , Chen, Xiaming , Ye, Tong , Hu, Weisheng

OE Vol. 50 Issue 09

KEYWORDS: Resonators, Microrings, Genetic algorithms, Optimization (mathematics), Switches, Silicon, Phase shifts, Optical engineering, Picosecond phenomena, Evolutionary algorithms

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PROCEEDINGS ARTICLE | January 11, 2011

Differentiated protection services with failure probability guarantee for workflow-based applications

Proc. SPIE. 7989, Network Architectures, Management, and Applications VIII

KEYWORDS: Computer simulations, Ocean optics, Optical communications, Optical networks, Analytical research, Algorithm development, Data communications, Optimization (mathematics), Failure analysis, Network security

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PROCEEDINGS ARTICLE | January 11, 2011

Using wavelength-tunable self-seeding Fabry-Perot laser for upstream transmission in hybrid WDM/TDM PON

Proc. SPIE. 7989, Network Architectures, Management, and Applications VIII

KEYWORDS: Fabry–Perot interferometers, Wavelength division multiplexing, Fiber lasers, Semiconductor lasers, Spatial light modulators, Laser stabilization, Wavelength tuning, Time division multiplexing, Signal generators, Statistical multiplexing

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PROCEEDINGS ARTICLE | November 19, 2009

Fault-tolerant scheduling using primary-backup approach for optical grid applications

Proc. SPIE. 7633, Network Architectures, Management, and Applications VII

KEYWORDS: Mathematical modeling, Sun, Data modeling, Computer simulations, Data processing, Telecommunications, Optical switching, Data communications, Electrophoretic light scattering, Network architectures

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PROCEEDINGS ARTICLE | November 19, 2009

The design and implementation of distributed resource manager in optical grid networks

Proc. SPIE. 7633, Network Architectures, Management, and Applications VII

KEYWORDS: Switching, Databases, Telecommunications, Optical communications, Distributed computing, Integrated optics, Optical networks, Document management, Network architectures, Environmental management

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PROCEEDINGS ARTICLE | November 19, 2009

Overlay of multicast service in WDM-PON based on dynamic wavelength reflection scheme

Proc. SPIE. 7633, Network Architectures, Management, and Applications VII

KEYWORDS: Reflectors, Eye, Modulation, Fiber Bragg gratings, Wavelength division multiplexing, WDM-PON, Single mode fibers, Modulators, Optical communications, Channel projecting optics

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SPIE Journal Paper | December 1, 2008

Design of reconfigurable optical add/drop multiplexer based on two-dimensional photonic crystals

Ren, Hongliang , Hu, Weisheng , Jin, Yaohui , Jiang, Chun

OE Vol. 47 Issue 12

KEYWORDS: Switches, Waveguides, Refractive index, Directional couplers, Photonic crystals, Multiplexers, Optical design, Finite-difference time-domain method, Interfaces, Silicon

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PROCEEDINGS ARTICLE | November 19, 2008

Research the dynamical large file transmitting in optical network using Lagrangian relaxation

Proc. SPIE. 7137, Network Architectures, Management, and Applications VI

KEYWORDS: Mathematical modeling, Computing systems, Wavelength division multiplexing, Computer simulations, Telecommunications, Distributed computing, Mathematics, Optical networks, Lawrencium, Algorithms

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In today's distributed computing systems, a large amount files contain huge data need to be transferred to their destination as soon as possible or else the quality of these systems will be seriously affected, and these transfer requests arrived dynamically. We propose some effective heuristic algorithm to this problem with the purposes of minimizing the maximal file transmitting time, and we can get some primal results from the algorithm. However, as we known, the problem of routing and scheduling for the dynamic arriving files in the optical network has a large number of constrains and the exact solution is computationally expensive, so it is hard to get the optimal result about this problem and we can not know whether the heuristic results is good or how closed it closed to its optimal result. In order to get some more detail results, we apply the approach called Lagrangian relaxation combined with subgradient-based method and utility the heuristic result to compute the lower bound of the optimal solution, and we consider the optimal target of minimizing the maximal file transmitting complete time for it's an important aspect with the file transmitting problem. We mainly use Lagrangian relaxation (LR) to research the dynamical lager file transmitting problem. Firstly, in order to apply the LR method we formulation our dynamic file routing scheduling and distributing problem in WDM optical network into mathematic model with some corresponding constraints. Secondly, change the formulation with some added variables to let it more suitable for LR and then introduce the Lagrangian multipliers into the model to obtain the Lagrangian function. With this function we can divided it into some small independent problems that could let it be solved more easily and at last we utilize the result received from the heuristic algorithm to solve the Lagrangian multiplier problem with subgradient-based method in order to getting the sharpest possible lower bound. With the comparison of our simulation results, we can prove that the Subgradient algorithm based on LR can get better results of the file transmitting time than the heuristic algorithm, and with the theorem of Lagrangian Bounding Principle we can know that value of LR method is a lower bound on the optimal value.

SPIE Conference Volume | November 19, 2008

Network Architectures, Management, and Applications VI

PROCEEDINGS ARTICLE | November 19, 2008

Scheduling and routing algorithm for aggregating large data files from distributed databases to super-computers on lambda grid

Proc. SPIE. 7137, Network Architectures, Management, and Applications VI

KEYWORDS: Internet, Switches, Data modeling, Databases, Data transmission, Computer simulations, Optical communications, Optical networks, Fiber optic communications, Data communications

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PROCEEDINGS ARTICLE | November 19, 2008

Scheduling strategies for multiple optical grid applications based on scheduling span and fairness

Proc. SPIE. 7137, Network Architectures, Management, and Applications VI

KEYWORDS: Switches, Adaptive optics, Computer simulations, Optical communications, Integrated optics, Bismuth, Optical networks, Optical switching, Data communications, Stereolithography

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PROCEEDINGS ARTICLE | November 19, 2008

Limit beat-frequency noise by employing receive low-pass filter and earn extra power budget margin for dual-band RSOA-based WDM-PON

Proc. SPIE. 7137, Network Architectures, Management, and Applications VI

KEYWORDS: Optical filters, Light sources, Tunable lasers, Optical amplifiers, Modulation, Reflectivity, Wavelength division multiplexing, WDM-PON, Receivers, Linear filtering

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PROCEEDINGS ARTICLE | November 19, 2008

Fault-tolerant policies for optical grid

Proc. SPIE. 7137, Network Architectures, Management, and Applications VI

KEYWORDS: Radon, Computing systems, Computer simulations, Telecommunications, Optical communications, Distributed computing, Optical networks, Optical switching, Data communications, Channel projecting optics

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PROCEEDINGS ARTICLE | November 19, 2008

Demonstration of time-wavelength co-allocation (TWCA) problem in novel dynamic wavelength scheduled WDM-PON for distributed computing applications

Proc. SPIE. 7137, Network Architectures, Management, and Applications VI

KEYWORDS: Silicon, Passive optical networks, Wavelength division multiplexing, WDM-PON, Distributed computing, Optical networks, Time division multiplexing, Local area networks, Data centers, Computer architecture

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PROCEEDINGS ARTICLE | November 19, 2008

Failure probability analysis of optical grid

Proc. SPIE. 7137, Network Architectures, Management, and Applications VI

KEYWORDS: Mathematical modeling, Switching, Computing systems, Computer simulations, Distributed computing, Integrated optics, Optical networks, Data communications, Failure analysis, Network security

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PROCEEDINGS ARTICLE | November 11, 2008

Effect of laser frequency offset on optical minimum-shift keying transmission system

Proc. SPIE. 7136, Optical Transmission, Switching, and Subsystems VI

KEYWORDS: Transmitters, Eye, Modulation, Interferometers, Receivers, Phase shift keying, Control systems, Modulators, Fiber lasers, Telecommunications

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PROCEEDINGS ARTICLE | November 11, 2008

Requirement of modulation bandwidth for 100Gb/s optical DQPSK transmission using one dual-drive Mach Zehnder Modulator

Proc. SPIE. 7136, Optical Transmission, Switching, and Subsystems VI

KEYWORDS: Transmitters, Eye, Modulation, Receivers, Phase shift keying, Linear filtering, Modulators, Signal generators, Electronic filtering, Phase shifts

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PROCEEDINGS ARTICLE | November 11, 2008

Design and analysis of a multicast-capable optical cross-connect

Proc. SPIE. 7136, Optical Transmission, Switching, and Subsystems VI

KEYWORDS: Microelectromechanical systems, Switches, Optical amplifiers, Roads, Switching, Signal attenuation, Wavelength division multiplexing, Structured optical fibers, Network architectures, Wavelength division multiplexing networks

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PROCEEDINGS ARTICLE | December 3, 2007

Time-path routing and scheduling optimization algorithm based on max-flow theoretic

Proc. SPIE. 6784, Network Architectures, Management, and Applications V

KEYWORDS: Mathematical modeling, Optical fibers, Data transmission, Computer programming, Computer simulations, Optical networks, Optical switching, Algorithm development, Optimization (mathematics), Algorithms

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