A quaternary amplitude shift keying modulator for suppressing initial amplitude distortion

Takuya Nakamura; Jun Ichi Kani; Mitsuhiro Teshima; Katsumi Iwatsuki

doi:10.1109/JLT.2004.824465

A quaternary amplitude shift keying modulator for suppressing initial amplitude distortion

Takuya Nakamura, Jun Ichi Kani, Mitsuhiro Teshima, Katsumi Iwatsuki

Research output: Contribution to journal › Article › peer-review

20 Citations (Scopus)

Abstract

This paper proposes a quaternary amplitude- shift-keying (4ASK) modulation circuit that suppresses amplitude distortion of the transmitting 4ASK signal. The performance of the proposed circuit is quantitatively verified through numerical calculation in comparison to a conventional alternative. The feasibility of the proposed circuit as integrated in a lithium niobate substrate is also demonstrated: the suppression of amplitude distortion is successfully demonstrated and minimum sensitivity of the transmitted 4ASK signal is 1.7 dB better than that offered by the conventional circuit.

Original language	English
Pages (from-to)	733-738
Number of pages	6
Journal	Journal of Lightwave Technology
Volume	22
Issue number	3
DOIs	https://doi.org/10.1109/JLT.2004.824465
Publication status	Published - 2004 Mar 1
Externally published	Yes

Keywords

Amplitude distortion
Eye-opening penalty
Mach-Zehnder modulator (MZM)
Quaternary amplitude shift keying (4ASK)

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

Access to Document

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abstract = "This paper proposes a quaternary amplitude- shift-keying (4ASK) modulation circuit that suppresses amplitude distortion of the transmitting 4ASK signal. The performance of the proposed circuit is quantitatively verified through numerical calculation in comparison to a conventional alternative. The feasibility of the proposed circuit as integrated in a lithium niobate substrate is also demonstrated: the suppression of amplitude distortion is successfully demonstrated and minimum sensitivity of the transmitted 4ASK signal is 1.7 dB better than that offered by the conventional circuit.",

keywords = "Amplitude distortion, Eye-opening penalty, Mach-Zehnder modulator (MZM), Quaternary amplitude shift keying (4ASK)",

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AU - Nakamura, Takuya

AU - Kani, Jun Ichi

AU - Teshima, Mitsuhiro

AU - Iwatsuki, Katsumi

PY - 2004/3/1

Y1 - 2004/3/1

N2 - This paper proposes a quaternary amplitude- shift-keying (4ASK) modulation circuit that suppresses amplitude distortion of the transmitting 4ASK signal. The performance of the proposed circuit is quantitatively verified through numerical calculation in comparison to a conventional alternative. The feasibility of the proposed circuit as integrated in a lithium niobate substrate is also demonstrated: the suppression of amplitude distortion is successfully demonstrated and minimum sensitivity of the transmitted 4ASK signal is 1.7 dB better than that offered by the conventional circuit.

AB - This paper proposes a quaternary amplitude- shift-keying (4ASK) modulation circuit that suppresses amplitude distortion of the transmitting 4ASK signal. The performance of the proposed circuit is quantitatively verified through numerical calculation in comparison to a conventional alternative. The feasibility of the proposed circuit as integrated in a lithium niobate substrate is also demonstrated: the suppression of amplitude distortion is successfully demonstrated and minimum sensitivity of the transmitted 4ASK signal is 1.7 dB better than that offered by the conventional circuit.

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KW - Eye-opening penalty

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KW - Quaternary amplitude shift keying (4ASK)

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