JPS57135906A - Optical waveguide - Google Patents

Optical waveguide

Info

Publication number
JPS57135906A
JPS57135906A JP2201481A JP2201481A JPS57135906A JP S57135906 A JPS57135906 A JP S57135906A JP 2201481 A JP2201481 A JP 2201481A JP 2201481 A JP2201481 A JP 2201481A JP S57135906 A JPS57135906 A JP S57135906A
Authority
JP
Japan
Prior art keywords
expanded
width
face
substrate
optical waveguide
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.)
Pending
Application number
JP2201481A
Other languages
Japanese (ja)
Inventor
Seiji Miyazaki
Akira Okamoto
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP2201481A priority Critical patent/JPS57135906A/en
Publication of JPS57135906A publication Critical patent/JPS57135906A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
    • G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
    • G02B6/13—Integrated optical circuits characterised by the manufacturing method
    • G02B6/134—Integrated optical circuits characterised by the manufacturing method by substitution by dopant atoms
    • G02B6/1342—Integrated optical circuits characterised by the manufacturing method by substitution by dopant atoms using diffusion

Abstract

PURPOSE:To lessen the driving power of the function part of an optical waveguide to reduce the loss of connection to an optical fiber, by changing the width and the thickness of the end part of the optical waveguide layer gradually to make a trumpet-shaped expanded end face. CONSTITUTION:A refractive index controlling substance such as metallic titanium having a refractive index higher than that of a light transmitting dielectric substrate 21 is stuck onto the substrate 21, and the titanium film has the width of the end part expanded gradually by the photolithographic technique to make an upper-face diffusion source 22. The refractive index controlling substance cnsisting of metallic titanium is stuck to a side face 23 where the width of the upper-face diffusion source 22 is expanded, and the titanium film is expanded in the direction of the depth of the substrate by the photolithographic technique to make a side-face diffusion source 24. the substrate 21 is subjected to the heat treatment to form an optical waveguide where the end part has the width and the thickness changed gradually and is expanded into a trumpet shape, thereby lesening the driving power of incorporated optical switch and etc. and reducing the loss of connection to an optical fiber.
JP2201481A 1981-02-17 1981-02-17 Optical waveguide Pending JPS57135906A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2201481A JPS57135906A (en) 1981-02-17 1981-02-17 Optical waveguide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2201481A JPS57135906A (en) 1981-02-17 1981-02-17 Optical waveguide

Publications (1)

Publication Number Publication Date
JPS57135906A true JPS57135906A (en) 1982-08-21

Family

ID=12071138

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2201481A Pending JPS57135906A (en) 1981-02-17 1981-02-17 Optical waveguide

Country Status (1)

Country Link
JP (1) JPS57135906A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4886538A (en) * 1987-07-28 1989-12-12 Polaroid Corporation Process for tapering waveguides
FR2705792A1 (en) * 1993-05-25 1994-12-02 Alsthom Cge Alcatel Integrated-optic component and method of fabricating such a component
KR100265795B1 (en) * 1997-11-18 2000-09-15 윤종용 Optical waveguide chip

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53106152A (en) * 1977-02-28 1978-09-14 Nec Corp Integrated taper type optical conjunction device and preparation therefor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53106152A (en) * 1977-02-28 1978-09-14 Nec Corp Integrated taper type optical conjunction device and preparation therefor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4886538A (en) * 1987-07-28 1989-12-12 Polaroid Corporation Process for tapering waveguides
FR2705792A1 (en) * 1993-05-25 1994-12-02 Alsthom Cge Alcatel Integrated-optic component and method of fabricating such a component
KR100265795B1 (en) * 1997-11-18 2000-09-15 윤종용 Optical waveguide chip
US6442315B1 (en) 1997-11-18 2002-08-27 Samsung Electronics Co., Ltd. Optical waveguide chip and method of formation thereof

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