High extinction ratio characteristics of over 60dB Mach-Zehnder modulator with asymmetric power-splitting Y-branches on X-cut Ti:LiNbO3

Yuya Yamaguchi*, Shinya Nakajima, Atsushi Kanno, Tetsuya Kawanishi, Masayuki Izutsu, Hirochika Nakajima

*この研究の対応する著者

研究成果: Article査読

18 被引用数 (Scopus)

抄録

We discuss the performance of Mach-Zehnder modulators with asymmetric power-splitting Y-branches theoretically and confirmed it experimentally. The output characteristics of the modulator depend on the relationship between the power splitting ratios of the front and the back Y-branches. Even if the modulator consists of two asymmetric Y-branches, we can achieve high-extinction-ratio operation, with an additional loss as compared with the ideal case, by tuning the splitting ratio of only one of the two Y-branches. The additional loss, however, is small in many cases because the asymmetry considered here iscaused by fabrication errors.

本文言語English
論文番号08MB03
ジャーナルJapanese journal of applied physics
53
8 SPEC. ISSUE 2
DOI
出版ステータスPublished - 2014 8月
外部発表はい

ASJC Scopus subject areas

  • 工学(全般)
  • 物理学および天文学(全般)

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