Electro-optic single-sideband modulator integrated with branch-line coupler of miniaturized configuration prepared on LiNbO3 substrate

Katsuyuki Yamamoto, Tadashi Kawai, Akira Enokihara, Tetsuya Kawanishi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The branch-line coupler (BC) circuit of miniaturized configuration using periodically installed open circuit stabs was designed onto an electro-optic (EO) crystal, LiNbO3, substrate at 10 GHz. The operation as the 90 degree hybrid was confirmed at around the center frequency by the experiment. By using this BC circuit as the signal power divider, we proposed a compact EO single sideband (SSB) modulator. The SSB modulator was designated and fabricated for 1550 nm light wavelength. In the experiment, the optical SSB signal with the sideband suppression ratio of about 30 dB was observed.

Original languageEnglish
Title of host publicationEuropean Microwave Week 2014
Subtitle of host publicationConnecting the Future, EuMW 2014 - Conference Proceedings; EuMC 2014: 44th European Microwave Conference
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages668-671
Number of pages4
ISBN (Electronic)9782874870354
DOIs
Publication statusPublished - 2014 Dec 15
Externally publishedYes
Event2014 44th European Microwave Conference, EuMC 2014 - Held as Part of the 17th European Microwave Week, EuMW 2014 - Rome, Italy
Duration: 2014 Oct 62014 Oct 9

Publication series

NameEuropean Microwave Week 2014: Connecting the Future, EuMW 2014 - Conference Proceedings; EuMC 2014: 44th European Microwave Conference

Other

Other2014 44th European Microwave Conference, EuMC 2014 - Held as Part of the 17th European Microwave Week, EuMW 2014
CountryItaly
CityRome
Period14/10/614/10/9

Keywords

  • Lithium niobate
  • couplers
  • electrooptic modulators
  • microwave photonics

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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    Yamamoto, K., Kawai, T., Enokihara, A., & Kawanishi, T. (2014). Electro-optic single-sideband modulator integrated with branch-line coupler of miniaturized configuration prepared on LiNbO3 substrate. In European Microwave Week 2014: Connecting the Future, EuMW 2014 - Conference Proceedings; EuMC 2014: 44th European Microwave Conference (pp. 668-671). [6986522] (European Microwave Week 2014: Connecting the Future, EuMW 2014 - Conference Proceedings; EuMC 2014: 44th European Microwave Conference). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/EuMC.2014.6986522