Phase-Shift Method-Based Optical VSB Modulation Using High-Pass Hilbert Transform

Sampath, K. I. Amila; Tanaka, Katsumi

doi:10.1109/jphot.2016.2603236

Cited by 14 publications

(3 citation statements)

References 27 publications

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“…To achieve spectral width reduction and in order to increase the bandwidth efficiency of VSB filtering, reduction in the bandwidth of the optical filter is very important. With the decrease in the bandwidth of the VSB filter resulted in signal degradation by narrow filtering [21]. Hence, the prime detuning of the VSB filter is absolutely relative to the spectral width of the optical signals and the bandwidth of the VSB filter.…”

Section: Vestigial Sideband (Vsb) Filteringmentioning

confidence: 99%

“…In enhancing the system capacity of an optical communication system, one of the major issues is how to effectively improve or increase the spectral efficiency of such a system. Therefore, spectral efficiency is the central factor and crucial especially in high-speed optical communication systems [21]. It is noteworthy that the spectral efficiency of a system absolutely depends on the spectral width of the line-coding scheme used.…”

Section: Spectral Efficiencymentioning

confidence: 99%

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Modified Manchester modulation format for high‐speed optical transmission systems

Oluwajobi

Nguyen

Malekmohammadi

2018

IET Optoelectronics

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Section: Vestigial Sideband (Vsb) Filteringmentioning

confidence: 99%

Section: Spectral Efficiencymentioning

confidence: 99%

Modified Manchester modulation format for high‐speed optical transmission systems

Oluwajobi

Nguyen

Malekmohammadi

2018

IET Optoelectronics

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“…To circumvent the issue of high PAPR of optical SSB transmission, the authors previously proposed an optical filter-less optical vestigial sideband (OVSB) scheme [3]. Besides the reduced PAPR, the proposed scheme brings the advantage of channel bandwidth controllability using digital signal processing.…”

Section: Introductionmentioning

confidence: 99%

Optical field trajectory shaping of phase-shift method-based optical BPSK-VSB signal;an experimental study

et al. 2021

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We experimentally studied field trajectory shaping of optical binary phase shift keying-vestigial sideband (BPSK-VSB) signal for optical quadrature phase-shift keying (QPSK)-VSB generation. The field trajectory of the BPSK-VSB signal is an ellipse. In phase-shift method-based optical BPSK-VSB modulation, the ellipticity of the field trajectory can be controlled by manipulating the amplitude response of the Hilbert transformer. When the Hilbert transformer has a high-pass amplitude response, the field trajectory of the optical BPSK-VSB signal reaches a circle with increasing cut-off frequency. We numerically calculated and experimentally demonstrated the achievability of circular field trajectories in BPSK-VSB modulation for cut-off frequencies greater than 20% of the baseband bandwidth.

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1-Bit Hilbert Transform for Signed Signals with Sparse Prior

Xiao

Chen

et al. 2022

Circuits Syst Signal Process

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Phase-Shift Method-Based Optical VSB Modulation Using High-Pass Hilbert Transform

Cited by 14 publications

References 27 publications

Modified Manchester modulation format for high‐speed optical transmission systems

Modified Manchester modulation format for high‐speed optical transmission systems

Optical field trajectory shaping of phase-shift method-based optical BPSK-VSB signal;an experimental study

1-Bit Hilbert Transform for Signed Signals with Sparse Prior

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