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IEICE TRANSACTIONS on Electronics

Mach-Zehnder Optical Modulator Integrated with Tunable Multimode Interference Coupler of Ti:LiNbO3 Waveguides for Controlling Modulation Extinction Ratio

Anna HIRAI, Yuichi MATSUMOTO, Takanori SATO, Tadashi KAWAI, Akira ENOKIHARA, Shinya NAKAJIMA, Atsushi KANNO, Naokatsu YAMAMOTO

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Summary :

A Mach-Zehnder optical modulator with the tunable multimode interference coupler was fabricated using Ti-diffused LiNbO3. The modulation extinction ratio could be voltage controlled to maximize up to 50 dB by tuning the coupler. Optical single-sideband modulation was also achieved with a sideband suppression ratio of more than 30 dB.

Publication
IEICE TRANSACTIONS on Electronics Vol.E105-C No.8 pp.385-388
Publication Date
2022/08/01
Publicized
2022/02/16
Online ISSN
1745-1353
DOI
10.1587/transele.2021ECS6018
Type of Manuscript
BRIEF PAPER
Category
Lasers, Quantum Electronics

Authors

Anna HIRAI
  University of Hyogo
Yuichi MATSUMOTO
  University of Hyogo
Takanori SATO
  Hokkaido University
Tadashi KAWAI
  University of Hyogo
Akira ENOKIHARA
  University of Hyogo
Shinya NAKAJIMA
  National Institute of Information and Communications Technology
Atsushi KANNO
  National Institute of Information and Communications Technology
Naokatsu YAMAMOTO
  National Institute of Information and Communications Technology

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