Optimization of system’s parameters for wavelength conversion of E-band signals

Current and future wireless communication systems are designed to achieve the user’s demands such as high data rate and high speed with low latency and simultaneously to save bandwidth and spectrum. In 5G and 6G networks, a high speed of transmitting and switching is required for internet of things (IoT) applications with higher capacity. To achieve these requirements a semiconductor optical amplifier (SOA) is considered as a wavelength converter to transmit a signal with an orthogonal frequency division multiplexing with subcarrier power modulation (OFDM-SPM). It exploits the subcarrier’s power in conventional OFDM block in order to send additional bits beside the normally transmitted bits. In this paper, we optimized the SOA’s parameters to have efficient wavelength conversion process. These parameters are included the injection current (IC) of SOA, power of pump and probe signals. A 7 Gbps OFDM-SPM signal with a millimeter waves (MMW) carrier of 80 GHz is considered for signal switching. The simulation results investigated and analyzed the performance of the designed system in terms of error vector magnitude (EVM), bit error rate (BER) and optical signal-to-noise ratio (OSNR). The optimum value of IC is 0.6 A while probe power is 9.45 and 8.9 dBm for pump power. The simulation is executed by virtual photonic integrated (VPI) software.

Four-wave Mixing Using Silicon Microring CROWs (Project Report 0642603-Y4)

This NSF-funded project [0642603] is a five-year (60 months) CAREER (Faculty Early Career Development Program) unified research and education development program. The project’s focus is the science, engineering and applications of low-power (milliwatt class) nonlinear optics using a novel type of waveguide, the Coupled Resonator Optical Waveguide (CROW). Examples of applications of the nonlinear effects that were studied in this project are wavelength conversion of high speed modulated signals and correlated photon-pair generation.

Silicon Photonic Cross-bar Switching and Wavelength Conversion in a WDM Network Testbed (Project Report CIAN2-3-Y1)

The goal of this research was to design, fabricate and test chip-scale opto-electronic network systems for access and data networks.