A novel system of multisoliton generation using nonlinear equations of the propagating signals is presented.This system uses a PANDA ring resonator incorporated with an add/drop filter system.Using resonant conditions...A novel system of multisoliton generation using nonlinear equations of the propagating signals is presented.This system uses a PANDA ring resonator incorporated with an add/drop filter system.Using resonant conditions,the intense optical fields known as multisolitons can be generated and propagated within a Kerr-type nonlinear medium.The present simulation results show that multisolitons can be controlled by using additional Gaussian pulses input into the add port of the PANDA system.For the soliton pulse in the microring device,a balance should be achieved between dispersion and nonlinear lengths.Chaotic output signals from the PANDA ring resonator are input into the add/drop filter system.Chaotic signals can be filtered by using the add/drop filter system,in which multi dark and bright solitons can be generated.In this work multi dark and bright solitons with an FWHM and an FSR of 425 pm and 1.145 nm are generated,respectively,where the Gaussian pulse with a central wavelength of 1.55µm and power of 600 mW is input into the system.展开更多
A system of an add-drop microring resonator integrated with a sampled grating distributed feedback （SG-DFB） is investigated via modeling and simulation with the time-domain traveling wave （TDTW） method. The propos...A system of an add-drop microring resonator integrated with a sampled grating distributed feedback （SG-DFB） is investigated via modeling and simulation with the time-domain traveling wave （TDTW） method. The proposed microring resonator comprises a SiO2 waveguide integrated with an InGaAsP/InP SG-DFB, and the SiO2 waveguide consists of a silicon core having a refractive index of 3.48 and Kerr co- efficient of 4.5 × 10^-18 m2/W. The SG-DFB consists of a series of grating bursts that are constructed using a periodic apodization function with a burst spacing in the grating of 45 μm, a burst length of 5 μm, and I0 bursts across the total length of the SG-DBR. Transmission results of the through and drop port of the microring resonator show the significant capacity enhancement of the generated center wavelengths. The Q-factor of the microring resonator system, defined as the center wavelength （λ0） divided by 3 dB FWHM, without and with integration with the SG-DFB is calculated as 1.93 × 10^5 and 2.87 × 10^5, respectively. Analysis of the dispersion of the system reveals that increasing the wavelength results in a decrease of the dispersion. The higher capacity and efficiency are the advantages of integrating the microring resonator and the InGaAsP/InP SG-DFB.展开更多
A micro stereo sensor system is proposed for human sensors,where eyes,ears,tongue,nose,body,and brain are applied by six panda rings embedded in a Mach–Zehnder interferometer(MZI).The input power is applied to the up...A micro stereo sensor system is proposed for human sensors,where eyes,ears,tongue,nose,body,and brain are applied by six panda rings embedded in a Mach–Zehnder interferometer(MZI).The input power is applied to the upper branch of MZI and propagates within the system.The six antennas(sensors)are formed by the whispering gallery modes of the panda rings.The space–time modulation signal is applied to the MZI lower branch.The modulated stereo signals can be configured as the plasmon(electron)spin orientations,which can be identified and applied for quantum codes and quantum consciousness.展开更多
A 1550 nm Q-switched fiber laser using a carbon platinum saturable absorber deposited on side-polished fiber（SPF） is proposed and demonstrated. The SPF is approximately 2 mm with a polarization-dependent loss（PDL）...A 1550 nm Q-switched fiber laser using a carbon platinum saturable absorber deposited on side-polished fiber（SPF） is proposed and demonstrated. The SPF is approximately 2 mm with a polarization-dependent loss（PDL）of 0.4 dB and an insertion loss of 2.5 dB. A stable Q-switched output spectrum is obtained at 1559.34 nm with a peak power of ~6 mW, a pulse width of 1.02 μs, pulse energy of 5.8 nJ, average output power of 0.76 mW, and a repetition rate of 131.6 kHz taken at a pump power of 230.0 mW. A signal-to-noise ratio of 49.62 d B indicates that the Q-switched pulse is highly stable.展开更多
文摘A novel system of multisoliton generation using nonlinear equations of the propagating signals is presented.This system uses a PANDA ring resonator incorporated with an add/drop filter system.Using resonant conditions,the intense optical fields known as multisolitons can be generated and propagated within a Kerr-type nonlinear medium.The present simulation results show that multisolitons can be controlled by using additional Gaussian pulses input into the add port of the PANDA system.For the soliton pulse in the microring device,a balance should be achieved between dispersion and nonlinear lengths.Chaotic output signals from the PANDA ring resonator are input into the add/drop filter system.Chaotic signals can be filtered by using the add/drop filter system,in which multi dark and bright solitons can be generated.In this work multi dark and bright solitons with an FWHM and an FSR of 425 pm and 1.145 nm are generated,respectively,where the Gaussian pulse with a central wavelength of 1.55µm and power of 600 mW is input into the system.
基金Grant number LRGS(2015)NGOD/UM/KPT,RU007/2015 and RUG OF UTM,09H77 and 10J97 from the university of Malaya (UM) and Universiti Teknologi Malaysia (UTM)
文摘A system of an add-drop microring resonator integrated with a sampled grating distributed feedback （SG-DFB） is investigated via modeling and simulation with the time-domain traveling wave （TDTW） method. The proposed microring resonator comprises a SiO2 waveguide integrated with an InGaAsP/InP SG-DFB, and the SiO2 waveguide consists of a silicon core having a refractive index of 3.48 and Kerr co- efficient of 4.5 × 10^-18 m2/W. The SG-DFB consists of a series of grating bursts that are constructed using a periodic apodization function with a burst spacing in the grating of 45 μm, a burst length of 5 μm, and I0 bursts across the total length of the SG-DBR. Transmission results of the through and drop port of the microring resonator show the significant capacity enhancement of the generated center wavelengths. The Q-factor of the microring resonator system, defined as the center wavelength （λ0） divided by 3 dB FWHM, without and with integration with the SG-DFB is calculated as 1.93 × 10^5 and 2.87 × 10^5, respectively. Analysis of the dispersion of the system reveals that increasing the wavelength results in a decrease of the dispersion. The higher capacity and efficiency are the advantages of integrating the microring resonator and the InGaAsP/InP SG-DFB.
文摘A micro stereo sensor system is proposed for human sensors,where eyes,ears,tongue,nose,body,and brain are applied by six panda rings embedded in a Mach–Zehnder interferometer(MZI).The input power is applied to the upper branch of MZI and propagates within the system.The six antennas(sensors)are formed by the whispering gallery modes of the panda rings.The space–time modulation signal is applied to the MZI lower branch.The modulated stereo signals can be configured as the plasmon(electron)spin orientations,which can be identified and applied for quantum codes and quantum consciousness.
基金supported by the Ministry of Higher Education,Malaysia(MOHE)under the grants LRGS(2015)NGOD/UM/KPT and GA010-2014(ULUNG)the University of Malaya under the grant RU 010-2016
文摘A 1550 nm Q-switched fiber laser using a carbon platinum saturable absorber deposited on side-polished fiber（SPF） is proposed and demonstrated. The SPF is approximately 2 mm with a polarization-dependent loss（PDL）of 0.4 dB and an insertion loss of 2.5 dB. A stable Q-switched output spectrum is obtained at 1559.34 nm with a peak power of ~6 mW, a pulse width of 1.02 μs, pulse energy of 5.8 nJ, average output power of 0.76 mW, and a repetition rate of 131.6 kHz taken at a pump power of 230.0 mW. A signal-to-noise ratio of 49.62 d B indicates that the Q-switched pulse is highly stable.
