A birefringence photonic crystal fiber is used for PMD compensation in a single-channel 40Gbit/s-speed optical communi- cation system with CSRZ format. The experimental results of transmission show that the PMD compen...A birefringence photonic crystal fiber is used for PMD compensation in a single-channel 40Gbit/s-speed optical communi- cation system with CSRZ format. The experimental results of transmission show that the PMD compensation system works effectively.展开更多
Using multiple importance sampling (MIS) technique, the optical communication system performance affected by polariza- tion-mode dispersion (PMD) and polarization-dependent loss (PDL) is simulated numerically. The pow...Using multiple importance sampling (MIS) technique, the optical communication system performance affected by polariza- tion-mode dispersion (PMD) and polarization-dependent loss (PDL) is simulated numerically. The power penalties and system outage probabilities are obtained for optical communication systems with on-off keying (OOK) or differential phase shift keying (DPSK) modulation. The simulation results show that DPSK always performs better than OOK. When the system has moderate PDL (about 1.5 dB), it is necessary to compensate effectively the fiber PMD in order to enhance the system tolerance to the PMD and PDL. However, the efficiency of PMD compensation will degrade rapidly when the PMD of the whole optical link drops into the low value.展开更多
In this letter a Monte Carlo(MC) algorithm is used to simulate the propagation of polarized light in double-layer turbid media and the 2-dimentional backscattered Stokes vectors and Mueller matrices are obtained.Relat...In this letter a Monte Carlo(MC) algorithm is used to simulate the propagation of polarized light in double-layer turbid media and the 2-dimentional backscattered Stokes vectors and Mueller matrices are obtained.Relationships between backscattered Mueller matrix and optical properties,such as scattering,absorption and layered structure,are discussed in detail.Integrating the 2-dimentional Mueller matrix elements along radial and azimuthal directions,we obtain a reverse trend with respect to the optical parameters for upper and lower layers,which suggests possibilities for discriminating subtle optical properties in a double-layer structure using backscattered polarization patterns such as Mueller matrix.展开更多
基金This work has been supported by the National Basic ResearchProgram of China (973 Program) (2003CB314907)the NationalNatural Science Foundation of China (90604026 and 60310174)the China Postdoctoral Science Foundation ( 20060400059).
文摘A birefringence photonic crystal fiber is used for PMD compensation in a single-channel 40Gbit/s-speed optical communi- cation system with CSRZ format. The experimental results of transmission show that the PMD compensation system works effectively.
基金This work has been supported by the project of Education Bureauof Sichuan Province (2006ZD026)
文摘Using multiple importance sampling (MIS) technique, the optical communication system performance affected by polariza- tion-mode dispersion (PMD) and polarization-dependent loss (PDL) is simulated numerically. The power penalties and system outage probabilities are obtained for optical communication systems with on-off keying (OOK) or differential phase shift keying (DPSK) modulation. The simulation results show that DPSK always performs better than OOK. When the system has moderate PDL (about 1.5 dB), it is necessary to compensate effectively the fiber PMD in order to enhance the system tolerance to the PMD and PDL. However, the efficiency of PMD compensation will degrade rapidly when the PMD of the whole optical link drops into the low value.
基金supported by the Governmental Education Bureau of Fujian Province(No.JA10068)the 2009 Project for Scientific and Technical Development of Xiamen (No.3502Z20099007)
文摘In this letter a Monte Carlo(MC) algorithm is used to simulate the propagation of polarized light in double-layer turbid media and the 2-dimentional backscattered Stokes vectors and Mueller matrices are obtained.Relationships between backscattered Mueller matrix and optical properties,such as scattering,absorption and layered structure,are discussed in detail.Integrating the 2-dimentional Mueller matrix elements along radial and azimuthal directions,we obtain a reverse trend with respect to the optical parameters for upper and lower layers,which suggests possibilities for discriminating subtle optical properties in a double-layer structure using backscattered polarization patterns such as Mueller matrix.
