Title:
OPTICAL WAVEGUIDE ELEMENT, OPTICAL HYBRID CIRCUIT, AND OPTICAL RECEIVER
Document Type and Number:
Japanese Patent JP2012013886
Kind Code:
A
Abstract:
To provide an optical waveguide element having a structure with a large manufacturing tolerance.
An optical waveguide element comprises: a first optical coupler; a second optical coupler; and a first and second optical waveguides each connecting an output side of the first optical coupler to an input side of the second optical coupler. Each of the first and second optical waveguides has an arcuately bent optical waveguide. The optical path lengths of the first and second optical wave guides are different from each other. The above problem is solved by the optical waveguide element.
Inventors:
CHUNG SEUK HWAN
Application Number:
JP2010149436A
Publication Date:
January 19, 2012
Filing Date:
June 30, 2010
Export Citation:
Assignee:
FUJITSU LTD
International Classes:
G02B6/122; G02B6/42
Domestic Patent References:
| JP2003014958A | 2003-01-15 | |||
| JP2005010333A | 2005-01-13 | |||
| JP2003131051A | 2003-05-08 | |||
| JP2005043886A | 2005-02-17 | |||
| JP2009109704A | 2009-05-21 | |||
| JPH10104446A | 1998-04-24 | |||
| JPH04213407A | 1992-08-04 | |||
| JPH11167032A | 1999-06-22 | |||
| JP2003046446A | 2003-02-14 | |||
| JP2008177759A | 2008-07-31 |
Other References:
JPN6013060066; 鄭 錫煥 他: '半導体導波路型９０°ハイブリッド' ２０１０年電子情報通信学会総合大会講演論文集 エレクトロニクス２ , 20100302, 第Ｓ-３９頁 （ＣＳ-６-６）
JPN6013060068; 鄭 錫煥 他: '広波長帯域（〜９４ｎｍ）新型９０°ハイブリッド' ２００９年電子情報通信学会エレクトロニクスソサイエティ大会講演論文集１ , 20090901, 第１９３頁 （Ｃ-３-３８）
JPN6013060068; 鄭 錫煥 他: '広波長帯域（〜９４ｎｍ）新型９０°ハイブリッド' ２００９年電子情報通信学会エレクトロニクスソサイエティ大会講演論文集１ , 20090901, 第１９３頁 （Ｃ-３-３８）
Attorney, Agent or Firm:
Tadahiko Ito
Akinori Yamaguchi
Akinori Yamaguchi
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