- 标题
- 摘要
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- 实验方案
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Research on the Performance of 40 Gbps UV Communication System Based on DWDM
摘要： Due to the atmospheric transmission attenuation, the rate of UV communication is low and range is limited at present. According to the idea of DWDM in optical fiber communication, we proposed a 40 Gbps UV communication scheme, which has 8 channels in total. The transmission rate of each channel is 5 Gbps. And its performance was simulated by the optical communication system simulation design software which is called OptiSystem. Simulation analysis shows that the maximum transmission distance of the designed system is up to 1200 meters under the transmission rate of 40 Gbps without any compensation scheme. On the 280nm channel, the minimum error rate and Q factor are 1.56-14 and 7.59201 at 1 km respectively. When the transmission distance reaches 1.5 kilometers, the bit error rate becomes very high and the communication effect is very poor. The simulation results can provide reference for the design of UV communication system.
关键词： DWDM,OptiSystem,bit error rate,UV communication,Q factor
更新于2025-09-23 15:21:01
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Investigation and Analysis of Data Rate for Free Space Optical Communications System Under Dust Conditions
摘要： In this study, the performance of free-space optics (FSO) communication link under dust conditions was analysed. The data were modulated by the non-return-to-zero technique. The optical link was investigated with varying data rates under the effect of dust conditions. The performance of the FSO system was tested in terms of the bit error rate (BER), Q-factor and received power at the maximum link. Simulation results were obtained to compare between two transmit data rates (0.3 and 0.7 Gbps). The system has a high BER at a high data rate. In the meantime, it has a high Q-factor at a low data rate.
关键词： OptiSystem 7.0,Atmospheric transmittance,FSO,BER,Dust concentration,Attenuation,Q-factor,Propagation,WDM
更新于2025-09-23 15:19:57
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New Optical Fiber Biosensor Method for Glucose in Serum
摘要： This paper presents the design and analysis of optical fiber biological sensor to measure and monitor the glucose ratio in blood samples. Simulations are carried out using Optisystem software to determine the optical power and mode for each sample. The sensing was accomplished by design Mach-Zehnder interferometer with using multimode fibers. The cladding of these fibers is stripped out of the fiber part. In addition, the wavelength of the light source has to be absorbable by the glucose in order to be detected. As a result, the refractive index (RI) of different serum glucose level has increased linearly by increasing the serum glucose level while the parameters of the RI step and the output power decreased linearly by increasing the RI of different serum glucose level. This result can be concluded as a new method for serum glucose level assessment.
关键词： optical fiber sensor,optisystem,MZI interferometer,biological sensor
更新于2025-09-23 15:19:57
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[IEEE 2019 International Conference on Computational Intelligence and Knowledge Economy (ICCIKE) - Dubai, United Arab Emirates (2019.12.11-2019.12.12)] 2019 International Conference on Computational Intelligence and Knowledge Economy (ICCIKE) - Optimized FWM Parameters for FTTH Using DWDM Network
摘要： A DWDM System consisting of transmitter, optical span and receiver is designed. The line coding technique NRZ (Non Return To Zero) has been used as the modulation schemes. The variation in the four wave mixing is analyzed with respect to the designed DWDM (Dense Wavelength Division Multiplexing) system. The DWDM is designed and simulated on Optisystem and their BER (Bit Error Rate) is calculated. The DWDM system is implemented in a FTTH (Fiber To The Home) system and simulated on Optisystem and their BER is calculated.
关键词： DWDM,Bit Error Rate,OptiSystem,FTTH,Four Wave Mixing,Simulation
更新于2025-09-19 17:13:59
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[IEEE 2018 International CET Conference on Control, Communication, and Computing (IC4) - Thiruvananthapuram, India (2018.7.5-2018.7.7)] 2018 International CET Conference on Control, Communication, and Computing (IC4) - Simulation of MIMO System with 2-D and 3-D Optical Orthogonal Codes Using MATLAB and OptiSystem
摘要： An Optical Orthogonal Code (OOC) is a family of binary codes involving 0s and 1s which is having prede?ned auto correlation function (ACF) and cross correlation functions (CCF). The study of OOCs has an immense application in a ?ber optic code division multiple access (FO-CDMA/ OCDMA). Two dimensional optical orthogonal codes (2-D OOCs) spreads over time and wavelength co-ordinates, while three dimensional optical orthogonal codes (3-D OOCs) spreads over time, wavelength and space co-ordinates, which obviously shows improved performance over 1-D and 2-D OOCs. For a 1-D OOC, if we opt for maintaining good correlation function values, the code length must be a large value as the number of users in the system is more. By adding more dimensions, we can increase the performance parameters, by allowing codewords to be formed with restrictions applied on the occurrence of pulses in each row, resulting in the autocorrelation value (λa) to become zero. This paper aims to simulate the study of 2-D and 3-D OOCs using MATLAB and OptiSystem tools, for implementing a MIMO communication system over ?bre optic channel.
关键词： Auto-correlation function (ACF),2-D OOC,OptiSystem,Optical Orthogonal Codes,Space-Time Codes,Cross-correlation function (CCF),3-D OOC
更新于2025-09-11 14:15:04