The Experts below are selected from a list of 183894 Experts worldwide ranked by ideXlab platform
Naoya Wada - One of the best experts on this subject based on the ideXlab platform.
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Rapid Reconfigurable OCDMA System Using Single-Phase Modulator for Time-Domain Spectral Phase Encoding/Decoding and DPSK Data Modulation
Journal of Lightwave Technology, 2011Co-Authors: Zhensen Gao, Nobuyuki Kataoka, Xu Wang, Naoya WadaAbstract:An optical-code-division-multiple-access (OCDMA) system with a novel Modulation scheme for simultaneous generation of time-domain spectral phase encoding/decoding (SPE/SPD) and differential phase-shift keying (DPSK) Data Modulation that can be potentially rapidly reconfigured using only a single-phase modulator (PM) is proposed and experimentally demonstrated. The time-domain SPE is realized by stretching and compressing the ultrashort optical pulse through two-chirped fiber Bragg gratings with opposite dispersion and a high-speed PM for optical code (OC) generation and Data Modulation. The SPD has similar configuration as the SPE counterpart but using another PM synchronously driven by the complementary code pattern for OC recognition. Simulation investigation and experimental results both show that the code transition, dispersion mismatch between the encoding and decoding side, and the transmission fiber dispersion have detrimental effect on the en/decoding performance. In the experiment, 16-chip, 40-Gchip/s OC pattern and 2.5-Gb/s DPSK Data Modulation have been simultaneously generated using a single PM. The 2.5-Gb/s DPSK Data have been successfully decoded and transmitted over 34 km fiber with BER
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Time domain SPE/SPD and DPSK Data Modulation using single phase modulator
CLEO QELS: 2010 Laser Science to Photonic Applications, 2010Co-Authors: Xu Wang, Nobuyuki Kataoka, Naoya WadaAbstract:A novel scheme using single phase modulator for simultaneous generating and decoding of time domain spectral phase encoded signal and DPSK Data Modulation is proposed and experimentally demonstrated for five 16-chip, 40GHz/chip optical code patterns.
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Time domain spectral phase encoding/DPSK Data Modulation using single phase modulator for OCDMA application.
Optics express, 2010Co-Authors: Xu Wang, Nobuyuki Kataoka, Zhensen Gao, Naoya WadaAbstract:A novel scheme using single phase modulator for simultaneous time domain spectral phase encoding (SPE) signal generation and DPSK Data Modulation is proposed and experimentally demonstrated. Array- Waveguide-Grating and Variable-Bandwidth-Spectrum-Shaper based devices can be used for decoding the signal directly in spectral domain. The effects of fiber dispersion, light pulse width and timing error on the coding performance have been investigated by simulation and verified in experiment. In the experiment, SPE signal with 8-chip, 20GHz/chip optical code patterns has been generated and modulated with 2.5 Gbps DPSK Data using single modulator. Transmission of the 2.5 Gbps Data over 34km fiber with BER
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Modulation format free optical packet switching technology
2010 12th International Conference on Transparent Optical Networks, 2010Co-Authors: Naoya Wada, Satoshi Shinada, Hideaki FurukawaAbstract:In this paper, we show the possibility of optical packet switching technology free from Data Modulation format such as OOK, DPSK, DQPSK, and so on. We also discuss the merit of ultra-wide band optical switching technologies.
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Demonstration of time-domain spectral phase encoding/DPSK Data Modulation using single phase modulator
2009 IEEE LEOS Summer Topical Meeting, 2009Co-Authors: Zhensen Gao, Nobuyuki Kataoka, Xu Wang, Naoya WadaAbstract:We proposed and experimentally demonstrated time-domain spectral phase encoding scheme using single phase modulator for 8-chip, 20GHz/chip optical code generation and 2.5 Gbps DPSK Data Modulation, and successfully transmitted and decoded the Data with BER≪10−9
R A Scholtz - One of the best experts on this subject based on the ideXlab platform.
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ultra wide bandwidth time hopping spread spectrum impulse radio for wireless multiple access communications
IEEE Transactions on Communications, 2000Co-Authors: Moe Z Win, R A ScholtzAbstract:Attractive features of time-hopping spread-spectrum multiple-access systems employing impulse signal technology are outlined, and emerging design issues are described. Performance of such communications systems in terms of achievable transmission rate and multiple-access capability are estimated for both analog and digital Data Modulation formats under ideal multiple-access channel conditions.
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comparisons of analog and digital impulse radio for wireless multiple access communications
International Conference on Communications, 1997Co-Authors: R A ScholtzAbstract:Attractive features of time-hopping spread-spectrum multiple access systems employing impulse signal technology are outlined and emerging design issues are described. Performance of such communications systems in terms of multiple-access capability is estimated for both analog and digital Data Modulation formats under ideal multiple access channel conditions.
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signal selection for the indoor wireless impulse radio channel
Vehicular Technology Conference, 1997Co-Authors: Fernando Ramirezmireles, Moe Z Win, R A ScholtzAbstract:In this paper we investigate communications using quaternary pulse position Data Modulation over the indoor impulse radio multiple access channel disturbed with multipath. The performance of four quaternary signal sets with different correlation properties is assessed.
Xu Wang - One of the best experts on this subject based on the ideXlab platform.
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Rapid Reconfigurable OCDMA System Using Single-Phase Modulator for Time-Domain Spectral Phase Encoding/Decoding and DPSK Data Modulation
Journal of Lightwave Technology, 2011Co-Authors: Zhensen Gao, Nobuyuki Kataoka, Xu Wang, Naoya WadaAbstract:An optical-code-division-multiple-access (OCDMA) system with a novel Modulation scheme for simultaneous generation of time-domain spectral phase encoding/decoding (SPE/SPD) and differential phase-shift keying (DPSK) Data Modulation that can be potentially rapidly reconfigured using only a single-phase modulator (PM) is proposed and experimentally demonstrated. The time-domain SPE is realized by stretching and compressing the ultrashort optical pulse through two-chirped fiber Bragg gratings with opposite dispersion and a high-speed PM for optical code (OC) generation and Data Modulation. The SPD has similar configuration as the SPE counterpart but using another PM synchronously driven by the complementary code pattern for OC recognition. Simulation investigation and experimental results both show that the code transition, dispersion mismatch between the encoding and decoding side, and the transmission fiber dispersion have detrimental effect on the en/decoding performance. In the experiment, 16-chip, 40-Gchip/s OC pattern and 2.5-Gb/s DPSK Data Modulation have been simultaneously generated using a single PM. The 2.5-Gb/s DPSK Data have been successfully decoded and transmitted over 34 km fiber with BER
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Time domain SPE/SPD and DPSK Data Modulation using single phase modulator
CLEO QELS: 2010 Laser Science to Photonic Applications, 2010Co-Authors: Xu Wang, Nobuyuki Kataoka, Naoya WadaAbstract:A novel scheme using single phase modulator for simultaneous generating and decoding of time domain spectral phase encoded signal and DPSK Data Modulation is proposed and experimentally demonstrated for five 16-chip, 40GHz/chip optical code patterns.
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Time domain spectral phase encoding/DPSK Data Modulation using single phase modulator for OCDMA application.
Optics express, 2010Co-Authors: Xu Wang, Nobuyuki Kataoka, Zhensen Gao, Naoya WadaAbstract:A novel scheme using single phase modulator for simultaneous time domain spectral phase encoding (SPE) signal generation and DPSK Data Modulation is proposed and experimentally demonstrated. Array- Waveguide-Grating and Variable-Bandwidth-Spectrum-Shaper based devices can be used for decoding the signal directly in spectral domain. The effects of fiber dispersion, light pulse width and timing error on the coding performance have been investigated by simulation and verified in experiment. In the experiment, SPE signal with 8-chip, 20GHz/chip optical code patterns has been generated and modulated with 2.5 Gbps DPSK Data using single modulator. Transmission of the 2.5 Gbps Data over 34km fiber with BER
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2D time domain spectral phase encoding/wavelength hopping coherent DPSK-OCDMA system using Fiber Bragg Gratings and phase modulator
Asia Communications and Photonics Conference and Exhibition, 2010Co-Authors: Xu Wang, Obuyuki Kataoka, Aoya WadaAbstract:We report a reconfigurable 2D (temporal-spectral) coherent OCDMA system using Fiber Bragg Gratings for generating wavelength hopping pattern and single phase modulator for simultaneous time domain spectral phase encoding/DPSK Data Modulation.
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Demonstration of time-domain spectral phase encoding/DPSK Data Modulation using single phase modulator
2009 IEEE LEOS Summer Topical Meeting, 2009Co-Authors: Zhensen Gao, Nobuyuki Kataoka, Xu Wang, Naoya WadaAbstract:We proposed and experimentally demonstrated time-domain spectral phase encoding scheme using single phase modulator for 8-chip, 20GHz/chip optical code generation and 2.5 Gbps DPSK Data Modulation, and successfully transmitted and decoded the Data with BER≪10−9
Zhensen Gao - One of the best experts on this subject based on the ideXlab platform.
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Rapid Reconfigurable OCDMA System Using Single-Phase Modulator for Time-Domain Spectral Phase Encoding/Decoding and DPSK Data Modulation
Journal of Lightwave Technology, 2011Co-Authors: Zhensen Gao, Nobuyuki Kataoka, Xu Wang, Naoya WadaAbstract:An optical-code-division-multiple-access (OCDMA) system with a novel Modulation scheme for simultaneous generation of time-domain spectral phase encoding/decoding (SPE/SPD) and differential phase-shift keying (DPSK) Data Modulation that can be potentially rapidly reconfigured using only a single-phase modulator (PM) is proposed and experimentally demonstrated. The time-domain SPE is realized by stretching and compressing the ultrashort optical pulse through two-chirped fiber Bragg gratings with opposite dispersion and a high-speed PM for optical code (OC) generation and Data Modulation. The SPD has similar configuration as the SPE counterpart but using another PM synchronously driven by the complementary code pattern for OC recognition. Simulation investigation and experimental results both show that the code transition, dispersion mismatch between the encoding and decoding side, and the transmission fiber dispersion have detrimental effect on the en/decoding performance. In the experiment, 16-chip, 40-Gchip/s OC pattern and 2.5-Gb/s DPSK Data Modulation have been simultaneously generated using a single PM. The 2.5-Gb/s DPSK Data have been successfully decoded and transmitted over 34 km fiber with BER
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Time domain spectral phase encoding/DPSK Data Modulation using single phase modulator for OCDMA application.
Optics express, 2010Co-Authors: Xu Wang, Nobuyuki Kataoka, Zhensen Gao, Naoya WadaAbstract:A novel scheme using single phase modulator for simultaneous time domain spectral phase encoding (SPE) signal generation and DPSK Data Modulation is proposed and experimentally demonstrated. Array- Waveguide-Grating and Variable-Bandwidth-Spectrum-Shaper based devices can be used for decoding the signal directly in spectral domain. The effects of fiber dispersion, light pulse width and timing error on the coding performance have been investigated by simulation and verified in experiment. In the experiment, SPE signal with 8-chip, 20GHz/chip optical code patterns has been generated and modulated with 2.5 Gbps DPSK Data using single modulator. Transmission of the 2.5 Gbps Data over 34km fiber with BER
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Demonstration of time-domain spectral phase encoding/DPSK Data Modulation using single phase modulator
2009 IEEE LEOS Summer Topical Meeting, 2009Co-Authors: Zhensen Gao, Nobuyuki Kataoka, Xu Wang, Naoya WadaAbstract:We proposed and experimentally demonstrated time-domain spectral phase encoding scheme using single phase modulator for 8-chip, 20GHz/chip optical code generation and 2.5 Gbps DPSK Data Modulation, and successfully transmitted and decoded the Data with BER≪10−9
Nobuyuki Kataoka - One of the best experts on this subject based on the ideXlab platform.
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Rapid Reconfigurable OCDMA System Using Single-Phase Modulator for Time-Domain Spectral Phase Encoding/Decoding and DPSK Data Modulation
Journal of Lightwave Technology, 2011Co-Authors: Zhensen Gao, Nobuyuki Kataoka, Xu Wang, Naoya WadaAbstract:An optical-code-division-multiple-access (OCDMA) system with a novel Modulation scheme for simultaneous generation of time-domain spectral phase encoding/decoding (SPE/SPD) and differential phase-shift keying (DPSK) Data Modulation that can be potentially rapidly reconfigured using only a single-phase modulator (PM) is proposed and experimentally demonstrated. The time-domain SPE is realized by stretching and compressing the ultrashort optical pulse through two-chirped fiber Bragg gratings with opposite dispersion and a high-speed PM for optical code (OC) generation and Data Modulation. The SPD has similar configuration as the SPE counterpart but using another PM synchronously driven by the complementary code pattern for OC recognition. Simulation investigation and experimental results both show that the code transition, dispersion mismatch between the encoding and decoding side, and the transmission fiber dispersion have detrimental effect on the en/decoding performance. In the experiment, 16-chip, 40-Gchip/s OC pattern and 2.5-Gb/s DPSK Data Modulation have been simultaneously generated using a single PM. The 2.5-Gb/s DPSK Data have been successfully decoded and transmitted over 34 km fiber with BER
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Time domain SPE/SPD and DPSK Data Modulation using single phase modulator
CLEO QELS: 2010 Laser Science to Photonic Applications, 2010Co-Authors: Xu Wang, Nobuyuki Kataoka, Naoya WadaAbstract:A novel scheme using single phase modulator for simultaneous generating and decoding of time domain spectral phase encoded signal and DPSK Data Modulation is proposed and experimentally demonstrated for five 16-chip, 40GHz/chip optical code patterns.
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Time domain spectral phase encoding/DPSK Data Modulation using single phase modulator for OCDMA application.
Optics express, 2010Co-Authors: Xu Wang, Nobuyuki Kataoka, Zhensen Gao, Naoya WadaAbstract:A novel scheme using single phase modulator for simultaneous time domain spectral phase encoding (SPE) signal generation and DPSK Data Modulation is proposed and experimentally demonstrated. Array- Waveguide-Grating and Variable-Bandwidth-Spectrum-Shaper based devices can be used for decoding the signal directly in spectral domain. The effects of fiber dispersion, light pulse width and timing error on the coding performance have been investigated by simulation and verified in experiment. In the experiment, SPE signal with 8-chip, 20GHz/chip optical code patterns has been generated and modulated with 2.5 Gbps DPSK Data using single modulator. Transmission of the 2.5 Gbps Data over 34km fiber with BER
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Demonstration of time-domain spectral phase encoding/DPSK Data Modulation using single phase modulator
2009 IEEE LEOS Summer Topical Meeting, 2009Co-Authors: Zhensen Gao, Nobuyuki Kataoka, Xu Wang, Naoya WadaAbstract:We proposed and experimentally demonstrated time-domain spectral phase encoding scheme using single phase modulator for 8-chip, 20GHz/chip optical code generation and 2.5 Gbps DPSK Data Modulation, and successfully transmitted and decoded the Data with BER≪10−9
