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Decimal Convertor Application for Optical Wireless Communication by Generating of Dark and Bright Signals of soliton

Iraj Sadegh Amiri, G. R. Vahedi, Ali Nikoukar, Ali Asghar Shojaei, J. Ali, Preecha P. Yupapin

Published Feb 8, 2012• 15 citations
OpenAlex

Abstract

Two systems consist of microring resonators (MRRs) and an add/drop filter are used to generate signals as localized multi wavelengths. Quantum dense encoding can be performed by output signals of selected wavelengths incorporated to a polarization control system. Therefore dark and bright optical soliton pulses with different time slot are generated. They can be converted into digital logic quantum codes using a decimal convertor system propagating along a wireless networks. Results show that multi soliton wavelength, ranged from 1.55m to 1.56m with FWHM and FSR of 10 pm and 600 pm can be generated respectively. Keywords- Micro Ring Resonator, Quantum Dense Coding (QDC), Wireless network communication system generated by a MRR system in a nonlinear medium with given input power and selected parameters [5, 6]. Amiri et al have proposed a technique, which can be used to communication security via the chaotic signals and up and down links of optical soliton pulses in which the use of quantum encoding of output signals is applicable [7]. Amiri et al have projected the use of secured codes applicable in quantum router and network system [8]. We have used a nonlinear MRR system to form the multi wavelength, applicable for quantum codes generation used in wireless network system.

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IOSR Journal of Applied Physics•Jan 1, 2013•15 citations
Two systems consist of microring resonators (MRRs) and an add/drop filter are used to generate signals as localized multi wavelengths. Quantum dense encoding can be performed by output signals of selected wavelengths incorporated to a polarization control system. Therefore dark and bright optical soliton pulses with different time slot are generated. They can be converted into digital logic quantum codes using a decimal convertor system propagating along a wireless networks. Results show that multi soliton wavelength, ranged from 1.55m to 1.56m with FWHM and FSR of 10 pm and 600 pm can be generated respectively. Keywords- Micro Ring Resonator, Quantum Dense Coding (QDC), Wireless network communication system generated by a MRR system in a nonlinear medium with given input power and selected parameters [5, 6]. Amiri et al have proposed a technique, which can be used to communication security via the chaotic signals and up and down links of optical soliton pulses in which the use of quantum encoding of output signals is applicable [7]. Amiri et al have projected the use of secured codes applicable in quantum router and network system [8]. We have used a nonlinear MRR system to form the multi wavelength, applicable for quantum codes generation used in wireless network system.
In this study, simply two systems consist of series of microring resonators (MRRs) and a add/drop filter are used to generate a large bandwidth signal as localized multi wavelength, applicable for quantum dense coding (QDC) and continuous variable encoding generation using incorporated system. This technique uses the Kerr nonlinear type of light in the MRR to generate multi wavelength for desired application especially in internet security and quantum network cryptography. Quantum dense encoding can be perform by output signals of selected wavelengths which are incorporated to a polarization control system in which dark and bright optical soliton pulses with different time slot are generated. Generated dark and bright optical pulses can be converted into digital logic quantum codes using a decimal convertor system in which transmission of secured information are perform via a wireless network communication system. Results show that multi soliton wavelength, ranged from 1.55μm to 1.56μm with FWHM and FSR of 10 pm and 600 pm can be generated respectively.
In this study, a system of discrete optical pulse generation via a series of microring resonator (MRR) is presented. Chaotic signals can be generated by an optical soliton or a Gaussian pulse within a MRR system. Large bandwidth signals of optical soliton are generated by input pulse propagating within the MRRs, which can be used to form continuous wavelength or frequency with large tunable channel capacity. Therefore, distinguished discrete wavelength or frequency pulses can be generated by using localized spatial pulses via a networks communication system. Selected discrete pulses are more suitable to generate high-secured quantum codes because of the large free spectral range (FSR). Quantum codes can be generated by using a polarization control unit and a beam splitter, incorporating to the MRRs. In this work, frequency band of 10.7 MHz and 16 MHz and wavelengths of 206.9 nm, 1448 nm, 2169 nm and 2489 nm are localized and obtained which can be used for quantum codes generation applicable for secured networks communication.
In this study, a system of continuous variable quantum code via a wavelength router is presented. The optical Kerr type nonlinearity in the nonlinear microring resonator (NMRR) induces the chaotic behavior. In this proposed system chaotic signals are generated by an optical soliton or Gaussian pulse within a NMRR system. Large bandwidth signals of optical soliton are generated by the input pulse propagating within the MRRs, which is allowed to form the continuous wavelength or frequency with large tunable channel capacity. Therefore, distinguished up and down links of wavelength or frequency pulses can be generated by using localized spatial soliton via a quantum router and networks. These selected up and down links pulses are more suitable to generate high secured quantum codes because of the greater free spectral range (FSR). The continuous quantum codes can be generated by using the polarization control unit and beam splitter, incorporating into the MRRs. In this work, frequency band of 10.7 MHz and 16 MHz and wavelengths of 206.9 nm, 1.448 μm, 2.169 μm and 2.489 μm can be obtained for QKD by using input optical soliton and Gaussian beam. Key words: Nonlinear microring resonator (NMRR); up and down links optical soliton, quantum codes
In this study, new system of quantum cryptography for network communication is proposed. Multi optical Soliton can be generated and propagate via a nonlinear modified add/drop interferometer system incorporated with a time division multiple access (TDMA) system wherein the transportation of quantum codes is performed. To increase the channel capacity and security of the signals, the PANDA ring resonator is proposed. 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 obtained and used to generate entangled quantum codes for internet security. In this study soliton pulses with FWHM and FSR of 325 pm and 880 nm are generated, respectively, where the Gaussian pulse with a centre wavelength of 1.55 μm and power of 600 mW is input into the system.
The microring resonator (MRR) system can be used to trap optical solitons.These types of pulses are used to generate entangled photon required for quantum keys.The required information can be provided via the quantum keys.We simulate localized spatial and temporal soliton pulses to form an optical communication used in wireless systems.The input soliton pulses with peak power of 500 and 550 mW are used to generate a spectrum of chaotic signals within the nonlinear medium, where the nonlinear refractive index is selected to n 2 =2.2 x 10 -17 m 2 /W.The ultra-short soliton pulse can be trapped within the 3.52 GHz frequency, where the temporal soliton pulse with FWHM of 25 ps could be simulated and used to generate entangled photon pair.The generated entangled photons are input into a wireless router system which is used to transfer them within a network communication system.The router system is used to receive the information and convert it to analog signals at the end of the transmission link, thus data can be sent to the users via a secured optical communication system using MRRs.
A system of microring resonators (MRRs) is presented to generation entangled photon.Different time slot for continuous variable quantum key distribution (CVQKD) use is applicable in optical wireless link.Chaotic behavior of a soliton pulse within the device can be presented respect to the Kerr nonlinear type of light in the MRR devices.Continuous spatial and temporal signals are generated spreading over the spectrum.The CVQKD is formed using the localized spatial soliton pulse.Here localized temporal soliton with FWHM and FSR of 0.2 ps and 0.58 ns is obtained respectively.The spatial soliton pulse has a FWHM of 80 pm.Transmission of soliton pulse with FWHM of 1.5 ps is simulated along the long distance fiber optics where the polarized photons are formed incorporating with the polarization control unit into the MRRs, which allows different time slot entangled photons to be randomly formed.