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oe1(光电查) - 科学论文

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  • Nonclassical properties of two-mode squeezing-enhanced vacuum state

    摘要： We present a new kind of two-mode squeezed vacuum state with two squeezing parameters. Different from the normal univariate two-mode squeezed vacuum state, this new state shows stronger squeezing effect, anti-bunching and entanglement. It is shown that the new squeezing parameter plays an important role in this state.

    关键词： fidelity,entanglement,cross-correlation function,squeezing,antibunching effect

    更新于2025-09-23 15:23:52

  • [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