【発明の名称】光導波路デバイス - INTERNATIONAL BUSINESS MASCHINES CORPORATION

Title:

【発明の名称】光導波路デバイス

Document Type and Number:

Japanese Patent JP3496829

Kind Code:

B2

Abstract:

An optical waveguide device is proposed which comprises a substrate, thereupon a lower cladding layer, thereupon an upper cladding layer and between said cladding layers a waveguide element. The influence of the substrate on the stress-induced birefringence of the optical waveguide device is reduced by modification of the substrate from underneath the waveguide element.

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Inventors:

Breehill, Peter
Bona, Jean-Luca
German, Roland, W.
Holst, Folkart
Masalek, Ilana
Off-rain, belt, han
Salemink, Hoof, Elle.

Application Number:

JP2000576307A

Publication Date:

February 16, 2004

Filing Date:

October 01, 1999

Export Citation:

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Assignee:

INTERNATIONAL BUSINESS MASCHINES CORPORATION

International Classes:

G02B6/12; G02B6/122; G02B6/126; G02B6/136; G02B6/10; (IPC1-7): G02B6/122

Domestic Patent References:

JP6477002A
JP8166520A
JP3145783A
JP5685710A
JP4241304A
JP5157920A
JP7294763A
JP5164932A
JP777622A
JP9211240A
JP534525A
JP5313031A
JP2110405A
JP829634A
JP6333710A
JP875940A

Other References:

【文献】欧州特許出願公開678764(EP,A1)
【文献】米国特許4781424(US,A)
【文献】竹形宣彦 et.al.,1991年電子情報通信学会春季全国大会講演論文集,日本,1991年 3月15日,分冊4 通信・エレクトロニクス,p.226
【文献】井上靖之 et.al.,1991年電子情報通信学会春季全国大会講演論文集,日本,1991年 3月15日,分冊4 通信・エレクトロニクス,p.259

Attorney, Agent or Firm:

Hiroshi Sakaguchi (1 person outside)

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