Crosstalk suppression of a balanced bridge interferometric-type LiNbO 3 optical switch by using mach-zehnder structures

Akito Chiba, Tetsuya Kawanishi, Takahide Sakamoto, Kaoru Higuma, Masayuki Izutsu

研究成果: Article

14 引用 (Scopus)

抄録

Crosstalk in a balanced bridge interferometric-type optical switch is highly suppressed by using Mach-Zehnder (MZ) structures as intensity trimmers. An imbalance in optical power is caused by deviations from the ideal dividing ratio of directional couplers in the switch, which causes an increase in the crosstalk. This imbalance was compensated for by adjusting the transmittances of the nested MZ structures. A crosstalk of less than -55 dB has been achieved even for alternating voltage signals. It is also shown that the crosstalk reduction is possible for a control voltage signal of more than 10 GHz, which is based on double-sideband suppressed-carrier modulation spectra measurement results.

元の言語English
ページ(範囲)872-874
ページ数3
ジャーナルIEEE Photonics Technology Letters
20
発行部数10
DOI
出版物ステータスPublished - 2008 5 15
外部発表Yes

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Optical switches
Crosstalk
crosstalk
Mach number
switches
retarding
Directional couplers
directional couplers
electric potential
sidebands
Voltage control
transmittance
adjusting
Switches
Modulation
deviation
modulation
causes
Electric potential

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Atomic and Molecular Physics, and Optics
  • Electronic, Optical and Magnetic Materials

これを引用

Crosstalk suppression of a balanced bridge interferometric-type LiNbO 3 optical switch by using mach-zehnder structures. / Chiba, Akito; Kawanishi, Tetsuya; Sakamoto, Takahide; Higuma, Kaoru; Izutsu, Masayuki.

:: IEEE Photonics Technology Letters, 巻 20, 番号 10, 15.05.2008, p. 872-874.

研究成果: Article

Chiba, Akito ; Kawanishi, Tetsuya ; Sakamoto, Takahide ; Higuma, Kaoru ; Izutsu, Masayuki. / Crosstalk suppression of a balanced bridge interferometric-type LiNbO 3 optical switch by using mach-zehnder structures. :: IEEE Photonics Technology Letters. 2008 ; 巻 20, 番号 10. pp. 872-874.
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