Phase-balanced differential vector modulation by laser and electroabsorption modulator

Praimezt Mekbungwan; Ukrit Mankong; Keizo Inagaki; Tetsuya Kawanishi

doi:10.1109/MWP.2017.8168722

Phase-balanced differential vector modulation by laser and electroabsorption modulator

Praimezt Mekbungwan, Ukrit Mankong, Keizo Inagaki, Tetsuya Kawanishi

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

3 Citations (Scopus)

Abstract

Directly modulated laser can be used as phase modulator due to chirp effect. However, accompanying amplitude modulation also results. By using EA Modulator in combination, light amplitude may be compensated enabling both amplitude and phase modulation of lightwave, which is an alternative method to conventional IQ modulator. Since light phase is proportional to intensity, we propose cumulative phasebalance coding to solve the limitation in the laser operating range for differential M-PSK and M-QAM modulation. The technique applies parallel DC-balance coding with phase-balance symbol mapping. The cumulative phase in high-order differential modulation is always bounded, it is for the first time, to our knowledge.

Original language	English
Title of host publication	MWP 2017 - 2017 International Topical Meeting on Microwave Photonics
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	1-4
Number of pages	4
Volume	2017-December
ISBN (Electronic)	9781538607626
DOIs	https://doi.org/10.1109/MWP.2017.8168722
Publication status	Published - 2017 Dec 5
Event	2017 International Topical Meeting on Microwave Photonics, MWP 2017 - Beijing, China Duration: 2017 Oct 23 → 2017 Oct 26

Other

Other	2017 International Topical Meeting on Microwave Photonics, MWP 2017
Country/Territory	China
City	Beijing
Period	17/10/23 → 17/10/26

Keywords

Coherent
Directly modulated laser
Electroabsorption Modulator
Phase modulation

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Atomic and Molecular Physics, and Optics

Access to Document

10.1109/MWP.2017.8168722

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Phase-balanced differential vector modulation by laser and electroabsorption modulator. / Mekbungwan, Praimezt; Mankong, Ukrit; Inagaki, Keizo et al.
MWP 2017 - 2017 International Topical Meeting on Microwave Photonics. Vol. 2017-December Institute of Electrical and Electronics Engineers Inc., 2017. p. 1-4.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Mekbungwan, P, Mankong, U, Inagaki, K & Kawanishi, T 2017, Phase-balanced differential vector modulation by laser and electroabsorption modulator. in MWP 2017 - 2017 International Topical Meeting on Microwave Photonics. vol. 2017-December, Institute of Electrical and Electronics Engineers Inc., pp. 1-4, 2017 International Topical Meeting on Microwave Photonics, MWP 2017, Beijing, China, 17/10/23. https://doi.org/10.1109/MWP.2017.8168722

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title = "Phase-balanced differential vector modulation by laser and electroabsorption modulator",

abstract = "Directly modulated laser can be used as phase modulator due to chirp effect. However, accompanying amplitude modulation also results. By using EA Modulator in combination, light amplitude may be compensated enabling both amplitude and phase modulation of lightwave, which is an alternative method to conventional IQ modulator. Since light phase is proportional to intensity, we propose cumulative phasebalance coding to solve the limitation in the laser operating range for differential M-PSK and M-QAM modulation. The technique applies parallel DC-balance coding with phase-balance symbol mapping. The cumulative phase in high-order differential modulation is always bounded, it is for the first time, to our knowledge.",

keywords = "Coherent, Directly modulated laser, Electroabsorption Modulator, Phase modulation",

author = "Praimezt Mekbungwan and Ukrit Mankong and Keizo Inagaki and Tetsuya Kawanishi",

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T1 - Phase-balanced differential vector modulation by laser and electroabsorption modulator

AU - Mekbungwan, Praimezt

AU - Mankong, Ukrit

AU - Inagaki, Keizo

AU - Kawanishi, Tetsuya

PY - 2017/12/5

Y1 - 2017/12/5

N2 - Directly modulated laser can be used as phase modulator due to chirp effect. However, accompanying amplitude modulation also results. By using EA Modulator in combination, light amplitude may be compensated enabling both amplitude and phase modulation of lightwave, which is an alternative method to conventional IQ modulator. Since light phase is proportional to intensity, we propose cumulative phasebalance coding to solve the limitation in the laser operating range for differential M-PSK and M-QAM modulation. The technique applies parallel DC-balance coding with phase-balance symbol mapping. The cumulative phase in high-order differential modulation is always bounded, it is for the first time, to our knowledge.

AB - Directly modulated laser can be used as phase modulator due to chirp effect. However, accompanying amplitude modulation also results. By using EA Modulator in combination, light amplitude may be compensated enabling both amplitude and phase modulation of lightwave, which is an alternative method to conventional IQ modulator. Since light phase is proportional to intensity, we propose cumulative phasebalance coding to solve the limitation in the laser operating range for differential M-PSK and M-QAM modulation. The technique applies parallel DC-balance coding with phase-balance symbol mapping. The cumulative phase in high-order differential modulation is always bounded, it is for the first time, to our knowledge.

KW - Coherent

KW - Directly modulated laser

KW - Electroabsorption Modulator

KW - Phase modulation

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BT - MWP 2017 - 2017 International Topical Meeting on Microwave Photonics

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ER -

Phase-balanced differential vector modulation by laser and electroabsorption modulator

Abstract

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Keywords

ASJC Scopus subject areas

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