CA2251754A1 - Optical waveguide circuit, its manufacturing method and optical waveguide module having the optical waveguide circuit - Google Patents

Optical waveguide circuit, its manufacturing method and optical waveguide module having the optical waveguide circuit

Info

Publication number
CA2251754A1
CA2251754A1 CA002251754A CA2251754A CA2251754A1 CA 2251754 A1 CA2251754 A1 CA 2251754A1 CA 002251754 A CA002251754 A CA 002251754A CA 2251754 A CA2251754 A CA 2251754A CA 2251754 A1 CA2251754 A1 CA 2251754A1
Authority
CA
Canada
Prior art keywords
optical waveguide
waveguide
waveguide circuit
circuit
manufacturing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002251754A
Other languages
French (fr)
Other versions
CA2251754C (en
Inventor
Yasuyuki Inoue
Akimasa Kaneko
Hiroshi Takahashi
Fumiaki Hanawa
Kuninori Hattori
Kenji Yokoyama
Senichi Suzuki
Shin Sumida
Katsunari Okamoto
Motohaya Ishii
Hiroaki Yamada
Takashi Yoshida
Koichi Arishima
Fumihiro Ebisawa
Motohiro Nakahara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NTT Electronics Corp
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph And Telephone Corporation
Yasuyuki Inoue
Akimasa Kaneko
Hiroshi Takahashi
Fumiaki Hanawa
Kuninori Hattori
Kenji Yokoyama
Senichi Suzuki
Shin Sumida
Katsunari Okamoto
Motohaya Ishii
Hiroaki Yamada
Takashi Yoshida
Koichi Arishima
Fumihiro Ebisawa
Motohiro Nakahara
Ntt Electronics Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Telegraph And Telephone Corporation, Yasuyuki Inoue, Akimasa Kaneko, Hiroshi Takahashi, Fumiaki Hanawa, Kuninori Hattori, Kenji Yokoyama, Senichi Suzuki, Shin Sumida, Katsunari Okamoto, Motohaya Ishii, Hiroaki Yamada, Takashi Yoshida, Koichi Arishima, Fumihiro Ebisawa, Motohiro Nakahara, Ntt Electronics Corporation filed Critical Nippon Telegraph And Telephone Corporation
Priority claimed from PCT/JP1998/000626 external-priority patent/WO1998036299A1/en
Publication of CA2251754A1 publication Critical patent/CA2251754A1/en
Application granted granted Critical
Publication of CA2251754C publication Critical patent/CA2251754C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

An optical waveguide circuit includes a plurality of waveguides with different lengths. Grooves (12) are formed in the waveguide by removing the upper cladding and the core of the waveguide (4) or by removing the upper cladding, the core and the lower cladding of the waveguide (4), and filled with a material (10) which have a refractive index temperature coefficient whose sign is different from the temperature coefficient of the effective refractive index of the waveguide.
The difference between the lengths of the removed parts of the adjacent waveguides is proportional to the difference between the lengths of the remaining parts of the adjacent waveguides.
CA002251754A 1997-02-14 1998-02-16 Optical waveguide circuit, its manufacturing method and optical waveguide module having the optical waveguide circuit Expired - Lifetime CA2251754C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP9-030251 1997-02-14
JP3025197 1997-02-14
JP14023197 1997-05-29
JP9-140231 1997-05-29
PCT/JP1998/000626 WO1998036299A1 (en) 1997-02-14 1998-02-16 Optical waveguide circuit, its manufacturing method and optical waveguide module having the optical waveguide circuit

Publications (2)

Publication Number Publication Date
CA2251754A1 true CA2251754A1 (en) 1998-08-20
CA2251754C CA2251754C (en) 2006-04-04

Family

ID=36143372

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002251754A Expired - Lifetime CA2251754C (en) 1997-02-14 1998-02-16 Optical waveguide circuit, its manufacturing method and optical waveguide module having the optical waveguide circuit

Country Status (1)

Country Link
CA (1) CA2251754C (en)

Also Published As

Publication number Publication date
CA2251754C (en) 2006-04-04

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