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Title:
OPTICAL WAVEGUIDE ELEMENT, OPTICAL WAVEGUIDE DEVICE, AND OPTICAL TRANSMISSION APPARATUS
Document Type and Number:
WIPO Patent Application WO/2022/091980
Kind Code:
A1
Abstract:
An optical waveguide element (100) comprises a substrate (102), an optical waveguide (104) that is provided inside the substrate (102) or on the substrate (102), and an electrode (106) that is provided along the optical waveguide (104) and acts on the optical waveguide (104) to cause a phase change in an optical wave propagating through the optical waveguide (104), wherein the electrode (106) is a traveling-wave electrode, the electrode (106) and the optical waveguide (104) are configured such that in an action part (108) in which the optical wave is controlled by the electrode (106), a phase change caused in a first action section (108c) that is a range of a predetermined distance from a downstream-side end along the propagation direction of a traveling wave of an electric signal propagating through the electrode (106) is opposite in sign to a phase change caused in a second action section (108a) that is a range of a predetermined distance from an upstream-side input end of the electric signal along the propagation direction.

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Inventors:
TAKANO SHINGO (JP)
KATAOKA YU (JP)
OIKAWA SATOSHI (JP)
ICHIKAWA JUNICHIRO (JP)
YAMAGUCHI YUYA (JP)
KANNO ATSUSHI (JP)
YAMAMOTO NAOKATSU (JP)
KAWANISHI TETSUYA (JP)
Application Number:
PCT/JP2021/039130
Publication Date:
May 05, 2022
Filing Date:
October 22, 2021
Export Citation:
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Assignee:
SUMITOMO OSAKA CEMENT CO LTD (JP)
NAT INST INF & COMM TECH (JP)
International Classes:
G02F1/035
Foreign References:
JP2008058436A2008-03-13
JP2020134876A2020-08-31
JPH05232417A1993-09-10
JPH04243217A1992-08-31
JP2017111338A2017-06-22
US20140112611A12014-04-24
JP2008102451A2008-05-01
JP2012078376A2012-04-19
US20080089633A12008-04-17
JPS61252527A1986-11-10
JP2005284129A2005-10-13
JP2020183025A2020-11-12
JP2006065085A2006-03-09
JP2016071214A2016-05-09
Other References:
STEFAN WOLF: "DAC-Less Amplifier-Less Generation and Transmission of QAM Signals Using Sub-Volt Silicon-Organic Hybrid Modulators", JOURNAL OF LIGHTWAVE TECHNOLOGY, vol. 33, no. 7, 1 April 2015 (2015-04-01), XP011575150, DOI: 10.1109/JLT.2015.2394511
Attorney, Agent or Firm:
KUSHIBUCHI & ASSOCIATES (JP)
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