Frequency chirp modulation by electro-optic modulator integrated with microwave rat-race circuit and measurement of chirp parameter by using optical fiber dispersion

Ryota Nakamura, Katsuyuki Yamamoto, Tadashi Kawai, Akira Enokihara, Naokatsu Yamamoto, Tetsuya Kawanishi

研究成果: Conference contribution

3 被引用数 (Scopus)

抄録

The rat-race (RR) circuit, which operates as a 180-degree hybrid, with an asymmetric power split ratio was integrated with the dual electrode type electro-optic modulator on the same substrate. Thereby, frequency chirp modulation with a compact configuration was realized. The RR circuit was designed with 4.5 1 power split ratio on a z-cut LiNbO3 substrate. The operation of the modulator was confirmed by observing the output light spectra. Moreover, the chirp parameter was directly measured by using the chromic dispersion of the optical fiber, where the power penalty of detected modulation signals transmitted through optical fiber was observed as a function of the fiber distance. The chirp parameter of the modulated light at 10 GHz was confirmed to be 0.47 by the measurement.

本文言語English
ホスト出版物のタイトル2016 IEEE MTT-S International Microwave Symposium, IMS 2016
出版社Institute of Electrical and Electronics Engineers Inc.
ISBN(電子版)9781509006984
DOI
出版ステータスPublished - 2016 8 9
イベント2016 IEEE MTT-S International Microwave Symposium, IMS 2016 - San Francisco, United States
継続期間: 2016 5 222016 5 27

出版物シリーズ

名前IEEE MTT-S International Microwave Symposium Digest
2016-August
ISSN(印刷版)0149-645X

Other

Other2016 IEEE MTT-S International Microwave Symposium, IMS 2016
国/地域United States
CitySan Francisco
Period16/5/2216/5/27

ASJC Scopus subject areas

  • 放射線
  • 凝縮系物理学
  • 電子工学および電気工学

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