The Experts below are selected from a list of 4107 Experts worldwide ranked by ideXlab platform

Ruhin Chowdhury - One of the best experts on this subject based on the ideXlab platform.

  • Nonlinearity compensation and link margin analysis of 112-Gbps circular-polarization division multiplexed fiber Optic Communication System using a digital coherent receiver over 800-km SSMF link
    Journal of Optics, 2021
    Co-Authors: A. K. M. Sharoar Jahan Choyon, Ruhin Chowdhury
    Abstract:

    Nonlinear effects have been considered as the major limitations in coherent Optical (CO) fiber transmission System. Digital signal processing (DSP)-based CO receiver with digital backpropagation (DBP) method has recently facilitated the compensation of fiber nonlinear impairments as well as compensating dispersion of Optical fiber. In this paper, for the first time, a comprehensive design is presented for a newly introduced DSP-based CO receiver with the 8-quadrature amplitude modulation (8-QAM) circular-polarization division multiplexed (CPDM) fiber Optic Communication (FOC) System to investigate the impact of nonlinearities. We have examined the performance of nonlinearity compensating DSP-based CO receiver with DBP method and demonstrated that it can be effectively employed to mitigate the intrachannel nonlinearities in CPDM 8-QAM FOC System over 800-km SSMF link. Accordingly, by effectively compensating the fiber nonlinearities, we have analyzed the performance of bit error rate, Optical signal-to-noise ratio (OSNR), optimum launch power, and investigate the link margin by evaluating OSNR margin for a specific launch power. Moreover, a CPDM technique helps as a very suitable means of maximizing the link capacity as well as enhancing the spectral efficiency of the FOC System.

  • nonlinearity compensation and link margin analysis of 112 gbps circular polarization division multiplexed fiber Optic Communication System using a digital coherent receiver over 800 km ssmf link
    arXiv: Signal Processing, 2021
    Co-Authors: A Sharoar Jahan K M Choyon, Ruhin Chowdhury
    Abstract:

    Nonlinear effects have been considered as the major limitations in coherent Optical (CO) fiber transmission System. DSP based CO receiver with digital backpropagation (DBP) method has recently facilitated the compensation of fiber nonlinear impairments as well as compensating dispersion of Optical fiber. In this paper, a comprehensive design is presented for circular-polarization division multiplexed (CPDM) 8-quadrature amplitude modulation (8-QAM) with DSP based CO receiver for the fiber Optic Communication (FOC) System to investigate the impact of nonlinearities. We have examined the performance of nonlinearity compensating DSP based CO receiver with DBP method and demonstrated that it can be effectively employed to mitigate the intrachannel nonlinearities in CPDM 8-QAM FOC System over 800-km SSMF link. By effectively compensating the fiber nonlinearities, we analyze the performance of bit error rate (BER), Optical signal to noise ratio (OSNR), optimum launch power, and investigate the link margin by evaluating OSNR margin for a specific launch power. Moreover, a CPDM technique helps as a very suitable means of maximizing the link capacity as well as enhancing the spectral-efficiency (SE) of the FOC System.

  • Performance Evaluation of CPDM 8-QAM for Faster Direct Detection Fiber Optic Communication System under the Effects of Cross-Polarization
    2019 IEEE International Conference on Signal Processing Information Communication & Systems (SPICSCON), 2019
    Co-Authors: A. K. M. Sharoar Jahan Choyon, Ruhin Chowdhury, S M Raiyan Chowdhury
    Abstract:

    This paper presents a proposal to incorporate Circular Polarization Division Multiplexing (CPDM) into the 8-Quadrature Amplitude Modulation (QAM) with direct detection fiber Optic Communication (FOC) System with a view to octupling the spectral efficiency and accordingly the bandwidth of the System without altering the spectral width of the transmitter. A comprehensive analysis is demonstrated considering the impact of the crosstalk (Xtalk) owing to cross-polarization (XPol) induced crosstalk by arbitrary misalignment of the SOPs to acquire the output expression of the Signal to Cross-talk plus Noise Ratio (SCNR) for a direct detection CPDM 8-QAM receiver. The effects of cross-polarization on the Bit Error Rate (BER) performance is presented considering the Maxwellian distribution of the random misalignment angles. Hence, the System suffers a significant deterioration from the expected results. Furthermore, a detailed comparison between the existing PDM-QPSK and our proposed CPDM 8-QAM model is elucidated where our proposed model is significantly better in terms of System performances.

Darko Zibar - One of the best experts on this subject based on the ideXlab platform.

  • dual polarization nonlinear fourier transform based Optical Communication System
    Optica, 2018
    Co-Authors: Simone Gaiarin, Auro M Perego, E P Da Silva, F Da Ros, Darko Zibar
    Abstract:

    New services and applications are causing an exponential increase in Internet traffic. In a few years, the current fiber Optic Communication System infrastructure will not be able to meet this demand because fiber nonlinearity dramatically limits the information transmission rate. Eigenvalue Communication could potentially overcome these limitations. It relies on a mathematical technique called “nonlinear Fourier transform (NFT)” to exploit the “hidden” linearity of the nonlinear Schrodinger equation as the master model for signal propagation in an Optical fiber. We present here the theoretical tools describing the NFT for the Manakov System and report on experimental transmission results for dual polarization in fiber Optic eigenvalue Communications. A transmission of up to 373.5 km with a bit error rate less than the hard-decision forward error correction threshold has been achieved. Our results demonstrate that dual-polarization NFT can work in practice and enable an increased spectral efficiency in NFT-based Communication Systems, which are currently based on single polarization channels.

  • dual polarization nonlinear fourier transform based Optical Communication System
    arXiv: Emerging Technologies, 2018
    Co-Authors: Simone Gaiarin, Auro M Perego, E P Da Silva, F Da Ros, Darko Zibar
    Abstract:

    New services and applications are causing an exponential increase in internet traffic. In a few years, current fiber Optic Communication System infrastructure will not be able to meet this demand because fiber nonlinearity dramatically limits the information transmission rate. Eigenvalue Communication could potentially overcome these limitations. It relies on a mathematical technique called "nonlinear Fourier transform (NFT)" to exploit the "hidden" linearity of the nonlinear Schr\"odinger equation as the master model for signal propagation in an Optical fiber. We present here the theoretical tools describing the NFT for the Manakov System and report on experimental transmission results for dual polarization in fiber Optic eigenvalue Communications. A transmission of up to 373.5 km with bit error rate less than the hard-decision forward error correction threshold has been achieved. Our results demonstrate that dual-polarization NFT can work in practice and enable an increased spectral efficiency in NFT-based Communication Systems, which are currently based on single polarization channels.

Simone Gaiarin - One of the best experts on this subject based on the ideXlab platform.

  • dual polarization nonlinear fourier transform based Optical Communication System
    Optica, 2018
    Co-Authors: Simone Gaiarin, Auro M Perego, E P Da Silva, F Da Ros, Darko Zibar
    Abstract:

    New services and applications are causing an exponential increase in Internet traffic. In a few years, the current fiber Optic Communication System infrastructure will not be able to meet this demand because fiber nonlinearity dramatically limits the information transmission rate. Eigenvalue Communication could potentially overcome these limitations. It relies on a mathematical technique called “nonlinear Fourier transform (NFT)” to exploit the “hidden” linearity of the nonlinear Schrodinger equation as the master model for signal propagation in an Optical fiber. We present here the theoretical tools describing the NFT for the Manakov System and report on experimental transmission results for dual polarization in fiber Optic eigenvalue Communications. A transmission of up to 373.5 km with a bit error rate less than the hard-decision forward error correction threshold has been achieved. Our results demonstrate that dual-polarization NFT can work in practice and enable an increased spectral efficiency in NFT-based Communication Systems, which are currently based on single polarization channels.

  • dual polarization nonlinear fourier transform based Optical Communication System
    arXiv: Emerging Technologies, 2018
    Co-Authors: Simone Gaiarin, Auro M Perego, E P Da Silva, F Da Ros, Darko Zibar
    Abstract:

    New services and applications are causing an exponential increase in internet traffic. In a few years, current fiber Optic Communication System infrastructure will not be able to meet this demand because fiber nonlinearity dramatically limits the information transmission rate. Eigenvalue Communication could potentially overcome these limitations. It relies on a mathematical technique called "nonlinear Fourier transform (NFT)" to exploit the "hidden" linearity of the nonlinear Schr\"odinger equation as the master model for signal propagation in an Optical fiber. We present here the theoretical tools describing the NFT for the Manakov System and report on experimental transmission results for dual polarization in fiber Optic eigenvalue Communications. A transmission of up to 373.5 km with bit error rate less than the hard-decision forward error correction threshold has been achieved. Our results demonstrate that dual-polarization NFT can work in practice and enable an increased spectral efficiency in NFT-based Communication Systems, which are currently based on single polarization channels.

A Sharoar Jahan K M Choyon - One of the best experts on this subject based on the ideXlab platform.

  • nonlinearity compensation and link margin analysis of 112 gbps circular polarization division multiplexed fiber Optic Communication System using a digital coherent receiver over 800 km ssmf link
    arXiv: Signal Processing, 2021
    Co-Authors: A Sharoar Jahan K M Choyon, Ruhin Chowdhury
    Abstract:

    Nonlinear effects have been considered as the major limitations in coherent Optical (CO) fiber transmission System. DSP based CO receiver with digital backpropagation (DBP) method has recently facilitated the compensation of fiber nonlinear impairments as well as compensating dispersion of Optical fiber. In this paper, a comprehensive design is presented for circular-polarization division multiplexed (CPDM) 8-quadrature amplitude modulation (8-QAM) with DSP based CO receiver for the fiber Optic Communication (FOC) System to investigate the impact of nonlinearities. We have examined the performance of nonlinearity compensating DSP based CO receiver with DBP method and demonstrated that it can be effectively employed to mitigate the intrachannel nonlinearities in CPDM 8-QAM FOC System over 800-km SSMF link. By effectively compensating the fiber nonlinearities, we analyze the performance of bit error rate (BER), Optical signal to noise ratio (OSNR), optimum launch power, and investigate the link margin by evaluating OSNR margin for a specific launch power. Moreover, a CPDM technique helps as a very suitable means of maximizing the link capacity as well as enhancing the spectral-efficiency (SE) of the FOC System.

F Da Ros - One of the best experts on this subject based on the ideXlab platform.

  • dual polarization nonlinear fourier transform based Optical Communication System
    Optica, 2018
    Co-Authors: Simone Gaiarin, Auro M Perego, E P Da Silva, F Da Ros, Darko Zibar
    Abstract:

    New services and applications are causing an exponential increase in Internet traffic. In a few years, the current fiber Optic Communication System infrastructure will not be able to meet this demand because fiber nonlinearity dramatically limits the information transmission rate. Eigenvalue Communication could potentially overcome these limitations. It relies on a mathematical technique called “nonlinear Fourier transform (NFT)” to exploit the “hidden” linearity of the nonlinear Schrodinger equation as the master model for signal propagation in an Optical fiber. We present here the theoretical tools describing the NFT for the Manakov System and report on experimental transmission results for dual polarization in fiber Optic eigenvalue Communications. A transmission of up to 373.5 km with a bit error rate less than the hard-decision forward error correction threshold has been achieved. Our results demonstrate that dual-polarization NFT can work in practice and enable an increased spectral efficiency in NFT-based Communication Systems, which are currently based on single polarization channels.

  • dual polarization nonlinear fourier transform based Optical Communication System
    arXiv: Emerging Technologies, 2018
    Co-Authors: Simone Gaiarin, Auro M Perego, E P Da Silva, F Da Ros, Darko Zibar
    Abstract:

    New services and applications are causing an exponential increase in internet traffic. In a few years, current fiber Optic Communication System infrastructure will not be able to meet this demand because fiber nonlinearity dramatically limits the information transmission rate. Eigenvalue Communication could potentially overcome these limitations. It relies on a mathematical technique called "nonlinear Fourier transform (NFT)" to exploit the "hidden" linearity of the nonlinear Schr\"odinger equation as the master model for signal propagation in an Optical fiber. We present here the theoretical tools describing the NFT for the Manakov System and report on experimental transmission results for dual polarization in fiber Optic eigenvalue Communications. A transmission of up to 373.5 km with bit error rate less than the hard-decision forward error correction threshold has been achieved. Our results demonstrate that dual-polarization NFT can work in practice and enable an increased spectral efficiency in NFT-based Communication Systems, which are currently based on single polarization channels.