JPS55115002A - Waveguide type photo branching filter - Google Patents

Waveguide type photo branching filter

Info

Publication number
JPS55115002A
JPS55115002A JP2191679A JP2191679A JPS55115002A JP S55115002 A JPS55115002 A JP S55115002A JP 2191679 A JP2191679 A JP 2191679A JP 2191679 A JP2191679 A JP 2191679A JP S55115002 A JPS55115002 A JP S55115002A
Authority
JP
Japan
Prior art keywords
light
columnar body
waveguide type
type photo
branching filter
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
JP2191679A
Other languages
Japanese (ja)
Inventor
Hideaki Kamiyama
Naohisa Goto
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP2191679A priority Critical patent/JPS55115002A/en
Publication of JPS55115002A publication Critical patent/JPS55115002A/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
    • G02B6/12007—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 forming wavelength selective elements, e.g. multiplexer, demultiplexer
    • 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
    • G02B6/122—Basic optical elements, e.g. light-guiding paths
    • G02B6/124—Geodesic lenses or integrated gratings

Abstract

PURPOSE:To suppress the radiation light to the direction opposite from the light receiving direction and achieve the reduction of insertion losses by guiding light to the columnar body having the specified width composed of the thin layers formed on the top or in the inside of a substrate. CONSTITUTION:The columnar body 10 having the specified width composed of the thin layer part 11 formed by thin films through sputtering method or the like is formed on the top or in the inside of an element material substrate 1 by a photolithography method, fine patterning method or the like and grating groups 21, 22 are provided not only on one side face of this columnar body 10 but also on the both side faces as well. Arrangement is so made that light is guided in this columnar body 10. Thereby, the reflected light to the direction opposite from the light receiving direction may be suppressed considerably and the insertion losses at the branching characteristic may be reduced considerably.
JP2191679A 1979-02-28 1979-02-28 Waveguide type photo branching filter Pending JPS55115002A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2191679A JPS55115002A (en) 1979-02-28 1979-02-28 Waveguide type photo branching filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2191679A JPS55115002A (en) 1979-02-28 1979-02-28 Waveguide type photo branching filter

Publications (1)

Publication Number Publication Date
JPS55115002A true JPS55115002A (en) 1980-09-04

Family

ID=12068397

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2191679A Pending JPS55115002A (en) 1979-02-28 1979-02-28 Waveguide type photo branching filter

Country Status (1)

Country Link
JP (1) JPS55115002A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0810454A1 (en) * 1996-05-24 1997-12-03 Fujikura Ltd. Optical Waveguide filter and production process thereof
JPH09325227A (en) * 1996-06-06 1997-12-16 Fujikura Ltd Optical waveguide grating
WO2003062886A3 (en) * 2002-01-17 2003-11-27 Cornell Res Foundation Inc High-index contrast distributed bragg reflector
WO2005011076A1 (en) * 2003-07-31 2005-02-03 Bookham Technology Plc Weakly guiding ridge waveguides with vertical gratings
WO2006041172A1 (en) * 2004-10-12 2006-04-20 Ngk Insulators, Ltd. Optical waveguide substrate and harmonics generating device
US7519257B2 (en) 2004-11-24 2009-04-14 Cornell Research Foundation, Inc. Waveguide structure for guiding light in low-index material
WO2011024302A1 (en) * 2009-08-25 2011-03-03 Fujikura Ltd. Manufacturing method of planar optical waveguide device with grating structure
WO2011024301A1 (en) * 2009-08-25 2011-03-03 Fujikura Ltd. Manufacturing method of planar optical waveguide device with grating structure
US8227178B2 (en) 2009-08-25 2012-07-24 Fujikura Ltd. Manufacturing method of planar optical waveguide device with grating structure
US8404133B2 (en) 2009-08-25 2013-03-26 Fujikura Ltd. Manufacturing method of planar optical waveguide device with grating structure

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5930437A (en) * 1996-05-24 1999-07-27 Fujikura Ltd. Optical filter with planar optical waveguide having periodically varied distribution of refractive index and production process thereof
EP0810454A1 (en) * 1996-05-24 1997-12-03 Fujikura Ltd. Optical Waveguide filter and production process thereof
JPH09325227A (en) * 1996-06-06 1997-12-16 Fujikura Ltd Optical waveguide grating
US7113673B2 (en) 2002-01-17 2006-09-26 Cornell Research Foundation, Inc. High-index contrast distributed Bragg reflector
WO2003062886A3 (en) * 2002-01-17 2003-11-27 Cornell Res Foundation Inc High-index contrast distributed bragg reflector
WO2005011076A1 (en) * 2003-07-31 2005-02-03 Bookham Technology Plc Weakly guiding ridge waveguides with vertical gratings
JPWO2006041172A1 (en) * 2004-10-12 2008-05-22 日本碍子株式会社 Optical waveguide substrate and harmonic generation device
US7373065B2 (en) 2004-10-12 2008-05-13 Ngk Insulators, Ltd. Optical waveguide substrate and harmonics generating device
WO2006041172A1 (en) * 2004-10-12 2006-04-20 Ngk Insulators, Ltd. Optical waveguide substrate and harmonics generating device
JP5083865B2 (en) * 2004-10-12 2012-11-28 日本碍子株式会社 Optical waveguide substrate and harmonic generation device
US7519257B2 (en) 2004-11-24 2009-04-14 Cornell Research Foundation, Inc. Waveguide structure for guiding light in low-index material
WO2011024302A1 (en) * 2009-08-25 2011-03-03 Fujikura Ltd. Manufacturing method of planar optical waveguide device with grating structure
WO2011024301A1 (en) * 2009-08-25 2011-03-03 Fujikura Ltd. Manufacturing method of planar optical waveguide device with grating structure
JP2011527021A (en) * 2009-08-25 2011-10-20 株式会社フジクラ Manufacturing method of substrate type optical waveguide device having grating structure
JP2011527020A (en) * 2009-08-25 2011-10-20 株式会社フジクラ Manufacturing method of substrate type optical waveguide device having grating structure
CN102483491A (en) * 2009-08-25 2012-05-30 株式会社藤仓 Manufacturing method of planar optical waveguide device with grating structure
US8227178B2 (en) 2009-08-25 2012-07-24 Fujikura Ltd. Manufacturing method of planar optical waveguide device with grating structure
US8404133B2 (en) 2009-08-25 2013-03-26 Fujikura Ltd. Manufacturing method of planar optical waveguide device with grating structure

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