LTE smart grid performance gains with additional remote antenna units via radio over fiber using a microring resonator system

Amiri, Iraj Sadegh; Hindia, Mohammad Nour; Reza, Ahmed Wasif; Ahmad, Harith; Yupapin, P.

doi:10.1016/j.osn.2016.12.003

Cited by 7 publications

(1 citation statement)

References 48 publications

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“…The presence of bandwidth limitation and nonlinearity is not unique to the coherent optical transponder. In other types of application, such as radio over fiber [11,12] and millimeter wave band communication [13,14], the transmitter also suffers from the penalty due to bandwidth limitation and nonlinearity. Thus, the novel method demonstrated in this paper can be adopted, modified, and applied to different types of communication systems.…”

Section: Introductionmentioning

confidence: 99%

Compensation of Limited Bandwidth and Nonlinearity for Coherent Transponder

2019

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Coherent optical transponders are widely deployed in today’s long haul and metro optical networks using dense wavelength division multiplexing. To increase the data carrying capacity, the coherent transponder utilizes the high order modulation format and operates at a high baud rate. The limited bandwidth and the nonlinearity are two critical impairments for the coherent in-phase quadrature transmitter. These impairments can be mitigated by digital filters. However, to accurately determine the coefficients of these filters is difficult because the impairment from the limited bandwidth and the impairment from nonlinearity are coupled together. In this paper, we present a novel method to solve this problem. During the initial power-up, we apply a sinusoidal stimulus to the coherent IQ transmitter. We then scan the frequency and amplitude of the stimulus and monitor the output power. By curve-fitting with an accurate mathematical model, we determine the limited bandwidth, the nonlinearity, the power imbalance, and the bias point of the transponder simultaneously. Optimized coefficients of the digital filters are determined accordingly. Furthermore, we utilize a coherent IQ transponder and demonstrate that the limited bandwidth is improved by the finite impulse response filter, while nonlinearity is mitigated by the memoryless Volterra filter.

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Section: Introductionmentioning

confidence: 99%

Compensation of Limited Bandwidth and Nonlinearity for Coherent Transponder

2019

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Mode-locked self-pumping and squeezing photons model in a nonlinear micro-ring resonator

et al. 2018

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The use of a modified add-drop filter configured by the coupled two side rings for photon squeezing system is proposed. There are two forms of the coupling energies when photons travel around the micro -ring resonator that it is coupled by the two nonlinear side rings. They are the external disturbances known as the construction(creation, ̂ ) and destruction (annihilation, ̂) energy operators, which can disturb the traveling photons on the nonlinear microring resonator, from which the nonlinear behaviour called a four-wave mixing (FWM) is introduced by the coupled rings, which leads the system being unstable from the harmonic motion, from which the squeezed photons can occur. In a simulation, the obtained result of such a proposed behavior is confirmed by using the commercial Opti-wave and MATLAB software programs, whereas the suitable simulation parameters were chosen, the quantum harmonic squeezed photon theory is also reviewed, and the numerical details were given.

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A survey on role of photonic technologies in 5G communication systems

Katti

Prince

2019

Photon Netw Commun

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LTE smart grid performance gains with additional remote antenna units via radio over fiber using a microring resonator system

Cited by 7 publications

References 48 publications

Compensation of Limited Bandwidth and Nonlinearity for Coherent Transponder

Compensation of Limited Bandwidth and Nonlinearity for Coherent Transponder

Mode-locked self-pumping and squeezing photons model in a nonlinear micro-ring resonator

A survey on role of photonic technologies in 5G communication systems

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